Cycling and bicycle discussion forums. 
   Click here to join our community Log in to access your Control Panel  


Go Back   > >

Tandem Cycling A bicycle built for two. Want to find out more about this wonderful world of tandems? Check out this forum to talk with other tandem enthusiasts. Captains and stokers welcome!

User Tag List

Reply
 
Thread Tools Search this Thread
Old 03-14-13, 10:48 PM   #1
Ritterview
Tandem Vincitur
Thread Starter
 
Ritterview's Avatar
 
Join Date: Sep 2005
Location: Northern California
Bikes: BMC Pro Machine SLC01, Specialized Globe, Burley Rock 'N Roll tandem, Calfee Dragonfly tandem.
Posts: 3,317
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Article about Chris King, Made-in-USA, etc.

This Business Week article is only tangentially about tandems, but Chris King headsets are on a lot of tandems, and CK makes a tandem hub. Also, the issue of boutique vs mass manufacturing and China/Taiwan vs. Made in US is discussed here often. An interesting tidbit is that 99% of bicycles sold in the US are made in China/Taiwan. That is a lot different for tandems.

Manufacturing
Portland Bike Maker Sees Made-in-USA Demand from Overseas
By Anthony Effinger

Until this year, few people beyond his 96 employees saw inside Chris King’s bicycle factory in Portland, Ore.

The cagey manufacturer makes everything in an old coffee roasting plant on the edge of town, and he zealously guards the secrets that have helped his company thrive despite competition from China and Taiwan, where 99 percent of the 15.7 million bikes sold in the U.S. last year were made, according to the National Bicycle Dealers Association.

Now, as businesses in disparate industries, including Apple and General Electric, rediscover the appeal of Made in USA, King is letting visitors see at least some of the 80,000-square-foot place: the frame-welding floor, the room where employees press tiny metals balls into metal rings for hub bearings, and the paint booth. The main floor, where workers mill aluminum parts, some precise to 2/10,000ths of an inch, is still off limits....






Chris King Precision Components employs 96 people in an old coffee roasting plant outside Portland, Ore. It's one of the few bicycle factories left in the U.S. King makes mostly components, including wheel hubs and headsets, the assemblies that make the front wheel turn smoothly. Until this year, Chris King, the founder of the 36-year-old business, allowed almost no visitors into his factory, guarding the methods that have helped him compete against larger rivals in Asia, where 99 percent of all bikes sold in the U.S. are made. He still forbids visitors on the main manufacturing floor.
__________________

Strava Tandem Club
Ritterview is offline   Reply With Quote
Old 03-15-13, 09:48 AM   #2
twocicle
Clipless in Coeur d'Alene
 
twocicle's Avatar
 
Join Date: Mar 2012
Location: Coeur d'Alene, Idaho
Bikes: Calfee Dragonfly S&S Tandem, Specialized Tarmac SL4 S-Works, other misc Road & MTB singles
Posts: 1,657
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 24 Post(s)
I won't mention any names, but have been left up the Creek more than once with another brand of headset that failed on various bikes of ours. Since using only Chris King headsets, never a problem and always happy
twocicle is offline   Reply With Quote
Old 03-15-13, 10:09 AM   #3
jfarwell
Senior Member
 
Join Date: Aug 2010
Bikes:
Posts: 71
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
We have a CK headset on one of our tandems. Seemed like a pretty expensive upgrade twelve years ago, but after thousands of miles of riding in very imaginable condition, it works like new. Just ordered a new tandem, CK headset, hubs. These folks know how to build bike parts.
jfarwell is offline   Reply With Quote
Old 03-15-13, 10:39 AM   #4
colotandem 
Senior Member
 
colotandem's Avatar
 
Join Date: Oct 2007
Location: Golden, CO
Bikes: n+1
Posts: 321
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 5 Post(s)
Quote:
Originally Posted by jfarwell View Post
We have a CK headset on one of our tandems. Seemed like a pretty expensive upgrade twelve years ago, but after thousands of miles of riding in very imaginable condition, it works like new. Just ordered a new tandem, CK headset, hubs. These folks know how to build bike parts.
THIS!!!

It ends up being a small expense over the life of a CK headset!
colotandem is offline   Reply With Quote
Old 03-15-13, 10:42 AM   #5
bradcycles
Senior Member
 
bradcycles's Avatar
 
Join Date: Feb 2013
Location: Portland, OR
Bikes: Santana Team AL Tandem
Posts: 110
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
I just ordered a set of Enve 6.7 carbon clinchers with Chris King hubs for my road bike (single). I supported U.S.-based businesses in this purchase decision, but my main objective was to get the best product for the best price. In this case, for me, it was for U.S.-made products, but I would have been fine if it was made elsewhere.
bradcycles is offline   Reply With Quote
Old 03-15-13, 11:15 AM   #6
Ritterview
Tandem Vincitur
Thread Starter
 
Ritterview's Avatar
 
Join Date: Sep 2005
Location: Northern California
Bikes: BMC Pro Machine SLC01, Specialized Globe, Burley Rock 'N Roll tandem, Calfee Dragonfly tandem.
Posts: 3,317
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by bradcycles View Post
I just ordered a set of Enve 6.7 carbon clinchers with Chris King hubs for my road bike (single). I supported U.S.-based businesses in this purchase decision, but my main objective was to get the best product for the best price. In this case, for me, it was for U.S.-made products, but I would have been fine if it was made elsewhere.
ENVE is definitely a way to get the best, and then discover its Made-in-USA.

Both are discussed in this video:

Published on Jul 20, 2012
Produced by Peloton Magazine, this edit highlights ENVE and our commitment to American Manufacturing and passion for the sport of cycling and making high performance cycling wheels and components.
__________________

Strava Tandem Club
Ritterview is offline   Reply With Quote
Old 03-16-13, 08:52 AM   #7
furballi
Senior Member
 
Join Date: Mar 2010
Bikes:
Posts: 919
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
CK is known for selling high quality products, but the price is ridiculously expensive. My $6 Tange Passage 1" steel headset is still silky smooth after 11,600 miles. I use fifty 5/32" grade 25 steel balls and automotive NGLI #2 grease. The secret to a smooth and durable headset? Use loose balls and face the mating surfaces on the frame so that the upper and lower stationary cups are parallel to each other.

My oldest Shimano 600 hubs have more than 58000 miles. I repack and replace the balls every 6000 miles. The wheels spin forever compared to the best sealed hubs from CK.
furballi is offline   Reply With Quote
Old 03-16-13, 09:11 AM   #8
waynesulak
Senior Member
 
waynesulak's Avatar
 
Join Date: Jan 2008
Location: Ft Worth, TX
Bikes: 650B tandem converted from Santana Arriva, Santana Noventa, Boulder Bicycle 700C, Gunnar Sport, Trek TX700,
Posts: 1,922
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 6 Post(s)
Chris kings makes quality products and I use their headsets. I avoided their rear hubs due to the specialized tools needed for full rebuild. The quote below was taken from page 14 of manual at
http://chrisking.com/files/upload/in...ssicManual.pdf

Service of the RingDrive™

In addition to the basic maintenance of the RingDrive, a complete removal and servicing may be necessary. Complete service requires our Hub Service Tool Kit and, a basic guideline, should be performed at least once very 12 to 24 months.



They look like good hubs but the cost of hub plus tools ($179) is pretty high.





http://chrisking.com/tools/tls_hubs
waynesulak is offline   Reply With Quote
Old 03-16-13, 04:09 PM   #9
Ritterview
Tandem Vincitur
Thread Starter
 
Ritterview's Avatar
 
Join Date: Sep 2005
Location: Northern California
Bikes: BMC Pro Machine SLC01, Specialized Globe, Burley Rock 'N Roll tandem, Calfee Dragonfly tandem.
Posts: 3,317
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
So to add Chris King tandem content to this thread, when I asked Jason Woznick of Fairwheel, and author of the famous Fairwheel hub review, what hubs he would recommend for a tandem, he replied:

Quote:
Originally Posted by Jason Woznick
2. For the front I’d probably look at something like the Chris King Classic [now R45]. I think bracing angle is good on the Alchemy, but not a main consideration on tandem. Higher spoke count is better and with the small flanges and high bracing angle of the Alchemy there may be flange failure issues after time.

3. For rear 130 mm hubs, I’m probably again going to look at Chris King, with a steel freehub body. Again flange spacing is [not?] that big of a deal with high spoke counts and also introduces more difference in tension ratios.

4. For rear 135, again Chris King, As would probably be for 145 as well.
__________________

Strava Tandem Club
Ritterview is offline   Reply With Quote
Old 03-16-13, 05:01 PM   #10
Carbonfiberboy 
just another gosling
 
Carbonfiberboy's Avatar
 
Join Date: Feb 2007
Location: Everett, WA
Bikes: CoMo Speedster 2003, Trek 5200, CAAD 9, Fred 2004
Posts: 11,217
Mentioned: 8 Post(s)
Tagged: 0 Thread(s)
Quoted: 89 Post(s)
Yep. Been through many headsets, but never had a CK fail. It's usually rain combined with pounding down rough pavement at high speed that does them in. Our CK tandem hubs are a dream. The only hubs I've ever owned that were what I would call reliable and low maintenance. I take them to my wheel guy once a year and he services them for, I think, $15 ea., plus he knows what he's doing since he's a CK dealer. I ride these suckers in the rain year 'round and they're as smooth and quiet as the day I got them as a component on our used Speedster, many thousands of miles ago. That's a virtue beyond price. Would I have been canny enough to order them as an upgrade on a new bike? Probably not, but I'm glad someone did. Ever look inside one? Looks like something NASA built in a clean room in there.

When I ran Ultegra cone-and-cup hubs, I had to rebuild them about once a month, more often if I had a bike shop do it. Nothing like running up the miles on wet, gritty roads for increasing maintenance.
Carbonfiberboy is offline   Reply With Quote
Old 03-16-13, 09:05 PM   #11
akexpress
Senior Member
 
Join Date: Nov 2007
Location: Anchorage, Ak
Bikes: Calfee Tetra tandem, Ventana ECDM 26, Ventana ECDM 29r, Orbea Orca, Santa Cruz Carbon 5010
Posts: 484
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 7 Post(s)
We have CK hubs and headsets on three of our tandems one road and two mtn tandems. Many trouble free miles. I don't know if it is the hubs or what but we always seem to out coast teams with about our same riding weight. Love the quality and made in the USA. BTW I think there is ringtone phone download of the famous CK freehub noise.
akexpress is offline   Reply With Quote
Old 03-17-13, 05:15 AM   #12
TandemGeek
hors category
 
TandemGeek's Avatar
 
Join Date: Jan 2002
Bikes:
Posts: 7,210
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 2 Post(s)
Quote:
Originally Posted by waynesulak View Post
Chris kings makes quality products and I use their headsets. I avoided their rear hubs due to the specialized tools needed for full rebuild.
???? What do you think the odds are that you would you ever need to do a full rebuild? All of the routine maintenance needed to preclude the need for a rebuild can be done without any specialized tools or an understanding of the very complex inner-workings of a Chris King hub.
TandemGeek is offline   Reply With Quote
Old 03-17-13, 05:28 AM   #13
TandemGeek
hors category
 
TandemGeek's Avatar
 
Join Date: Jan 2002
Bikes:
Posts: 7,210
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 2 Post(s)
Quote:
Originally Posted by furballi View Post
CK is known for selling high quality products, but the price is ridiculously expensive. My $6 Tange Passage 1" steel headset is still silky smooth after 11,600 miles. I use fifty 5/32" grade 25 steel balls and automotive NGLI #2 grease. The secret to a smooth and durable headset? Use loose balls and face the mating surfaces on the frame so that the upper and lower stationary cups are parallel to each other. My oldest Shimano 600 hubs have more than 58000 miles. I repack and replace the balls every 6000 miles. The wheels spin forever compared to the best sealed hubs from CK.
And you've gotten that kind of mileage out of the Tange Passage 1" headset and Shimano 600 hubs on your tandem? Or, did you accidentally stumble into a tandem discussion thread without realizing it? Just curious.

Yes, Chris King components are expensive and yes, less expensive components can provide very long life if cared-for properly. However, Chris King's headsets and hubs have proven to be some of the most durable and reliable when it comes to the most demanding conditions. We've seen just about every brand of rear hub fail on off-road tandems, which put about as much torque as you'll ever see on a bicycle hub with one exception: the Chris King hubs. As for the headsets, CK was simply one of the early companies to produce a truly high-quality sealed bearing headset that made headset installation and adjustment a no-brainer for folks who struggled with getting the loose-bearing models properly adjusted, never mind ignoring required service. It's not like CK headsets and hubs don't have required service intervals, but many folks ignore them and still get very long-component life which again speaks to the value that some consumers find with CK.

For those folks like yourself who seem to be adept at using cone wrenches and doing frequent maintenance there is not a lot of added-value for something like a CK component. Be happy that you're all set.
TandemGeek is offline   Reply With Quote
Old 03-17-13, 01:51 PM   #14
waynesulak
Senior Member
 
waynesulak's Avatar
 
Join Date: Jan 2008
Location: Ft Worth, TX
Bikes: 650B tandem converted from Santana Arriva, Santana Noventa, Boulder Bicycle 700C, Gunnar Sport, Trek TX700,
Posts: 1,922
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 6 Post(s)
Quote:
Originally Posted by TandemGeek View Post
???? What do you think the odds are that you would you ever need to do a full rebuild? All of the routine maintenance needed to preclude the need for a rebuild can be done without any specialized tools or an understanding of the very complex inner-workings of a Chris King hub.
Having never owned a Chris hub and respecting the company I took their suggested maintenance at face value. That is why I mentioned the reference. Maybe reading the docs is misleading. Glad everyone loves them. Maybe I will get one the next time I am in the market fora hub.
waynesulak is offline   Reply With Quote
Old 03-17-13, 09:49 PM   #15
uspspro
Tandem Mountain Climber
 
Join Date: Mar 2007
Location: San Mateo, CA
Bikes: Calfee Tandem, Custom CAAD9 BB30, 90 Santana Arriva Tandem, 02 CAAD4 errand bike, 87 Cannondale "Black Lightning"
Posts: 4,101
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Building a new wheelset for the tandem this week, in fact. Chris King hubs front and rear.

Front hub: Chris King R45 32h
Front rim: HED C2 Belgium (23mm wide) 32h
Front spokes: Sapim CX-Ray 32x 3-cross
Front nipples: Spaim brass

Rear hub: Chris King Tandem 145mm 36h
Front rim: Bikehubstore (Kinlin) C472w (23mm wide) 36h
Front spokes: Sapim Race 14/15 36x 3-cross
Front nipples: Spaim brass

Should be apx. 1807g (about 267g less than the old set)

Same spoke models/lacing/count as my old set with different hubs and rims. I am building these for a few reasons.

1) I wanted Chris King hubs
2) I wanted the wider rims for a better tire profile. I love the HED rims on my single bike (which was a Chris King R45 up front and a PowerTap in back). The HED also has an awesome braking surface (welded with no joint).
3) I wanted a spare wheelset, which will be my old DeepV/White Industry build.

Can't wait to sound like a dive bomber

Last edited by uspspro; 03-17-13 at 09:55 PM.
uspspro is offline   Reply With Quote
Old 03-17-13, 11:03 PM   #16
Ritterview
Tandem Vincitur
Thread Starter
 
Ritterview's Avatar
 
Join Date: Sep 2005
Location: Northern California
Bikes: BMC Pro Machine SLC01, Specialized Globe, Burley Rock 'N Roll tandem, Calfee Dragonfly tandem.
Posts: 3,317
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by uspspro View Post
Building a new wheelset for the tandem this week, in fact. Chris King hubs front and rear.

Front hub: Chris King R45 32h
Front rim: HED C2 Belgium (23mm wide) 32h
Front spokes: Sapim CX-Ray 32x 3-cross
Front nipples: Spaim brass

Rear hub: Chris King Tandem 145mm 36h
Front rim: Bikehubstore (Kinlin) C472w (23mm wide) 36h
Front spokes: Sapim Race 14/15 36x 3-cross
Front nipples: Spaim brass

Should be apx. 1807g (about 267g less than the old set)
Here is an interesting read about wheel stiffness.

Debunking Wheel Stiffness

Written by: Greg Kopecky
Fri Mar 08 2013

Is the 142 mm rear disc hub an option for 145 mm OLD?

This is the front rim? HED Belgium Rim

And this the rear? BHS C472w Clincher Rim - 23mm wide - 28mm deep
__________________

Strava Tandem Club
Ritterview is offline   Reply With Quote
Old 03-17-13, 11:48 PM   #17
uspspro
Tandem Mountain Climber
 
Join Date: Mar 2007
Location: San Mateo, CA
Bikes: Calfee Tandem, Custom CAAD9 BB30, 90 Santana Arriva Tandem, 02 CAAD4 errand bike, 87 Cannondale "Black Lightning"
Posts: 4,101
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by Ritterview View Post
Is the 142 mm rear disc hub an option for 145 mm OLD?

This is the front rim? HED Belgium Rim

And this the rear? BHS C472w Clincher Rim - 23mm wide - 28mm deep
Not sure about running 142mm hub on a 145 rear spaced frame. Especially when the frame is carbon, and there is a disc brake involved. Perhaps it could be modified... don't know. I just got the Tandem 145mm hub.

Yes on both rims. I love the HEDs. I'd run them front and rear if they had a 36h drilling.
uspspro is offline   Reply With Quote
Old 03-21-13, 03:37 AM   #18
Dean V
Senior Member
 
Join Date: Oct 2009
Bikes:
Posts: 1,105
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 13 Post(s)
Quote:
Originally Posted by uspspro View Post
Building a new wheelset for the tandem this week, in fact. Chris King hubs front and rear.

Front hub: Chris King R45 32h
Front rim: HED C2 Belgium (23mm wide) 32h
Front spokes: Sapim CX-Ray 32x 3-cross
Front nipples: Spaim brass

Rear hub: Chris King Tandem 145mm 36h
Front rim: Bikehubstore (Kinlin) C472w (23mm wide) 36h
Front spokes: Sapim Race 14/15 36x 3-cross
Front nipples: Spaim brass

Should be apx. 1807g (about 267g less than the old set)

Same spoke models/lacing/count as my old set with different hubs and rims. I am building these for a few reasons.

1) I wanted Chris King hubs
2) I wanted the wider rims for a better tire profile. I love the HED rims on my single bike (which was a Chris King R45 up front and a PowerTap in back). The HED also has an awesome braking surface (welded with no joint).
3) I wanted a spare wheelset, which will be my old DeepV/White Industry build.

Can't wait to sound like a dive bomber
So can I assume you do not think a 32 hole Hed rim would be strong enough for the rear?
Is this based on previous experience? Wheel builders recommendation?
It is just that I was looking at building a wheelset with the Hed rims also and the builder thought they would be ok with 32 in the rear.
Dean V is offline   Reply With Quote
Old 03-21-13, 05:56 PM   #19
uspspro
Tandem Mountain Climber
 
Join Date: Mar 2007
Location: San Mateo, CA
Bikes: Calfee Tandem, Custom CAAD9 BB30, 90 Santana Arriva Tandem, 02 CAAD4 errand bike, 87 Cannondale "Black Lightning"
Posts: 4,101
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by Dean V View Post
So can I assume you do not think a 32 hole Hed rim would be strong enough for the rear?
Is this based on previous experience? Wheel builders recommendation?
It is just that I was looking at building a wheelset with the Hed rims also and the builder thought they would be ok with 32 in the rear.
It's purely based on the fact I was very happy with the stiffness, feel and reliability of my previous 32f 36r setup. I wanted an improved version of the same basic product I was using before.
uspspro is offline   Reply With Quote
Old 03-23-13, 10:56 AM   #20
Carbonfiberboy 
just another gosling
 
Carbonfiberboy's Avatar
 
Join Date: Feb 2007
Location: Everett, WA
Bikes: CoMo Speedster 2003, Trek 5200, CAAD 9, Fred 2004
Posts: 11,217
Mentioned: 8 Post(s)
Tagged: 0 Thread(s)
Quoted: 89 Post(s)
Quote:
Originally Posted by uspspro View Post
Building a new wheelset for the tandem this week, in fact. Chris King hubs front and rear.

Front hub: Chris King R45 32h
Front rim: HED C2 Belgium (23mm wide) 32h
Front spokes: Sapim CX-Ray 32x 3-cross
Front nipples: Spaim brass

Rear hub: Chris King Tandem 145mm 36h
Front rim: Bikehubstore (Kinlin) C472w (23mm wide) 36h
Front spokes: Sapim Race 14/15 36x 3-cross
Front nipples: Spaim brass

Should be apx. 1807g (about 267g less than the old set)

Same spoke models/lacing/count as my old set with different hubs and rims. I am building these for a few reasons.

1) I wanted Chris King hubs
2) I wanted the wider rims for a better tire profile. I love the HED rims on my single bike (which was a Chris King R45 up front and a PowerTap in back). The HED also has an awesome braking surface (welded with no joint).
3) I wanted a spare wheelset, which will be my old DeepV/White Industry build.

Can't wait to sound like a dive bomber
I assume that the "Front"s written below the rear hub description should read "Rear." I'm curious why you didn't go with the C472w on both ends - not much difference in weight. You chose a less aero rim yet aero spokes for the front. My understanding is that the rim makes a larger difference than the spoke? Did you go with round spokes in the rear because of less need to be aero? Or wanting a stiffer spoke?

I'm in the market for more aero aluminum rims than our current Deep-Vs, but I'd like something a lot more aero, more like the new Soul 23mm S4.0 rim. I haven't seen anything like that other than the Zipp 101, which isn't available with tandem appropriate drilling. Have you seen anything like that?
Carbonfiberboy is offline   Reply With Quote
Old 03-24-13, 12:04 PM   #21
uspspro
Tandem Mountain Climber
 
Join Date: Mar 2007
Location: San Mateo, CA
Bikes: Calfee Tandem, Custom CAAD9 BB30, 90 Santana Arriva Tandem, 02 CAAD4 errand bike, 87 Cannondale "Black Lightning"
Posts: 4,101
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by Carbonfiberboy View Post
I assume that the "Front"s written below the rear hub description should read "Rear." I'm curious why you didn't go with the C472w on both ends - not much difference in weight. You chose a less aero rim yet aero spokes for the front. My understanding is that the rim makes a larger difference than the spoke? Did you go with round spokes in the rear because of less need to be aero? Or wanting a stiffer spoke?

I'm in the market for more aero aluminum rims than our current Deep-Vs, but I'd like something a lot more aero, more like the new Soul 23mm S4.0 rim. I haven't seen anything like that other than the Zipp 101, which isn't available with tandem appropriate drilling. Have you seen anything like that?
Yeah the zipp 101 caught my eye... Too bad about the drillings.

The aero difference between the HED rim and the C472w are probably negligable.

The HED rim is a really nice rim. I would have run it F&R if they made a 36h.

I like the welded joint of the HED up front as it makes for a perfectly smooth braking surface (no joint, like there is on a Velocity or the C472w).

The CX-rays were mostly to save weight over any aero benefit. They are quite a bit lighter with 32x. I would have used them in the rear as well if I wasn't using a disc brake.
uspspro is offline   Reply With Quote
Old 03-24-13, 12:22 PM   #22
zonatandem
Senior Member
 
zonatandem's Avatar
 
Join Date: Dec 2003
Location: Tucson, AZ
Bikes: Custom Zona c/f tandem + Scott Plasma single
Posts: 10,858
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 28 Post(s)
Quality may cost a bit more initially, but pays off in the long term!
zonatandem is offline   Reply With Quote
Old 03-24-13, 05:51 PM   #23
Ritterview
Tandem Vincitur
Thread Starter
 
Ritterview's Avatar
 
Join Date: Sep 2005
Location: Northern California
Bikes: BMC Pro Machine SLC01, Specialized Globe, Burley Rock 'N Roll tandem, Calfee Dragonfly tandem.
Posts: 3,317
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
An alternative vision to the this made-in-USA Chris King story is provided by this review of carbon frame manufacturers at the Taipei Bicycle show. There are tons and tons.

Begin article:

Taipei Cycle Show in Pictures Part 1 – Carbon Frames



The Taipei Cycle Show spans 5 floors and two locations – the two largest floors are the first and the 4th floor at the Nangang Exhibitional Hall. The first (pictured above) is devoted to bicycle parts, and the 4th is for complete bikes and overseas exhibitors. There was a common theme on both floors: carbon frames…they’re EVERYWHERE.

Hope the pictures give an idea of how saturated the supply side is for carbon frames. There are many, many more booths I didn’t bother to stop by to snap a photo of – after seeing so many carbon frames they just start to all blend together…




With this surfeit of East Asian carbon frame manufacturers having made carbon frames a commodity, eventually someone is going to realize that the first using these techniques to design and manufacture a carbon tandem frame model in 3-4 sizes is going to have a monopoly. If the manufacturing cost to produce a carbon half-bike frame is $200-400, then a tandem frame would be at most....$1500? Done right, a CAD-designed, modern carbon manufacturing technique produced carbon tandem frame would immediately be the best tandem frame, and it could probably be priced like the $4500 2014 Cannondale RT-1.

Like this, only carbon:



A carbon tandem equipped like that available from your LBS for about $5000 would undercut the rationale for a carbon frame for $8000, or a $12,000 titanium IsoGrid tandem, etc. The tandem hobby would be a lot different if that ever happened.
__________________

Strava Tandem Club
Ritterview is offline   Reply With Quote
Old 03-24-13, 09:59 PM   #24
Carbonfiberboy 
just another gosling
 
Carbonfiberboy's Avatar
 
Join Date: Feb 2007
Location: Everett, WA
Bikes: CoMo Speedster 2003, Trek 5200, CAAD 9, Fred 2004
Posts: 11,217
Mentioned: 8 Post(s)
Tagged: 0 Thread(s)
Quoted: 89 Post(s)
Quote:
Originally Posted by uspspro View Post
Yeah the zipp 101 caught my eye... Too bad about the drillings.

The aero difference between the HED rim and the C472w are probably negligable.

The HED rim is a really nice rim. I would have run it F&R if they made a 36h.

I like the welded joint of the HED up front as it makes for a perfectly smooth braking surface (no joint, like there is on a Velocity or the C472w).

The CX-rays were mostly to save weight over any aero benefit. They are quite a bit lighter with 32x. I would have used them in the rear as well if I wasn't using a disc brake.
Ah, got it, Thanks for the explanation. Reading between the lines, it sounds like you would have gone with more aero rims, had they existed?
Carbonfiberboy is offline   Reply With Quote
Old 03-24-13, 11:43 PM   #25
uspspro
Tandem Mountain Climber
 
Join Date: Mar 2007
Location: San Mateo, CA
Bikes: Calfee Tandem, Custom CAAD9 BB30, 90 Santana Arriva Tandem, 02 CAAD4 errand bike, 87 Cannondale "Black Lightning"
Posts: 4,101
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by Carbonfiberboy View Post
Ah, got it, Thanks for the explanation. Reading between the lines, it sounds like you would have gone with more aero rims, had they existed?
Yes. Something like the Zipp 101 would be great.

But, truly I was looking for an "all-around" set (good in all aspects). Similar to my old set, with wider rims and a ~200 gram reduction. I had no equipment-related reservations of bombing a technical rough descent with the last set, using the brakes hard diving into corners, and I feel the same way about these. At around 1900g, they aren't *too* heavy.

Also, I do my own wheel maintenance, but send out my parts for an initial wheel build. I had my wheels built up by Neil at Cycle Monkey http://www.cyclemonkey.com/wheels_n_hubs.shtml since I know they are very meticulous about getting everything just right.
uspspro is offline   Reply With Quote
Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off



All times are GMT -6. The time now is 06:50 AM.