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 09-04-09, 01:08 PM   #376
DanRH
Senior Member
 
DanRH's Avatar
 
Join Date: Feb 2009
Location: SF Bay Area
Bikes: Cannondale RT2000 Tandem, Lapierre Carbon Single, IF Steel Crown Jewel Single, Lemond Fillmore Fixie, Bontrager hardtail MTB Single
Posts: 160
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Here's the pic fo our new daVinci on the top of Mt. Diablo last week. Our first ride on this bike!
Attached Images
File Type: jpg firstdavincisummitride2.jpg (62.3 KB, 367 views)
DanRH is offline   Reply With Quote
Old 09-08-09, 03:25 PM   #377
TandemGeek
hors category
 
TandemGeek's Avatar
 
Join Date: Jan 2002
Bikes:
Posts: 7,212
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 2 Post(s)
Quote:
Originally Posted by uspspro View Post
Here is a pic... Strange... the timing chain is not that slack on the flats, nor is it now after the ride. It has well under 1" of deflection. Is this caused by rider power differences?

No and yes: it's caused by the amount of torque you're putting into your cranks which at the moment likely exceeds anything you could create on the flats, never mind being static. It is highly likely that you are also overpowering your stoker's efforts which is related to power differences, but not in and of itself the reason the top run of your sync chain is under max load: that's all you.

As for where all of that excess chain comes from, a lot of it comes from the chain's own elasticity, some comes from bottom bracket spindle deflection, and tandem frames will also deflect a bit under torsion loads and a Calfee is not immune from that either... but I'd bet your eccentric probably slipped a bit on that climb and that's where most of it came from.
TandemGeek is offline   Reply With Quote
Old 09-08-09, 03:37 PM   #378
TandemGeek
hors category
 
TandemGeek's Avatar
 
Join Date: Jan 2002
Bikes:
Posts: 7,212
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 2 Post(s)
Our latest trip to Tennessee included a 95 mile / 7,000' out and back over the Foothill Parkway and US129 into North Carolina, aka. The Tail of the Dragon. As often happens, anyone who travels along 'The Dragon" will have their photos taken by 3 - 5 different photographers who make a living selling photos to visitors.

While most of the photos showed how out of shape we were... trailing way behind the two far more fit tandem teams who shared our day-long journey or, worse yet, with strange looking mid-waist bulges peer out under our lycra-clad bodies, there were two that were pretty cool. The one I didn't include is actually one in a series of photos where we were caught behind a 60ish lost black sheep / HD pirate who dropped $25k on a brand new Softtail, another $1k on his brand new leathers, $5 on a plastic yamika and about 5 minutes on "how to steer a motorcycle". No kidding, we waved this guy by on a climb and within 15 minutes we were going through the downhill twisties and son-of-a-gun if we didn't end up stuck on his rear wheel. The temptation to pass was quite high but I restrained myself.

Anyway, here's the other photo taken on our way back West on US129 setting up for a series of esses as we passed by "the dirt corner".

TandemGeek is offline   Reply With Quote
Old 09-08-09, 04:05 PM   #379
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)
Nice shot!

The "tail of the dragon" is legendary in the car/motorcycle scenes.
uspspro is offline   Reply With Quote
Old 09-09-09, 02:15 PM   #380
Goldrush
Senior Member
 
Join Date: Jul 2005
Bikes:
Posts: 115
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Wow!

I've driven "Tail of the Dragon" and it looked like a real challenging climb. The scary part for me would be going down. Looks like you did it with only rim brakes. I'd be stopping more than once to cool the rims.

Mike
2002 CoMotion Supremo

Last edited by Goldrush; 09-09-09 at 02:21 PM.
Goldrush is offline   Reply With Quote
Old 09-09-09, 03:21 PM   #381
Onegun
Oldie, just not here!
 
Onegun's Avatar
 
Join Date: Apr 2008
Location: Shady Hills, Fl.
Bikes: 2005 Trek T2000 tandem, 2003 Burly Tosa Tandem, 9 singles including 2 fixies
Posts: 984
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 1 Post(s)
Last rode The Tail back about 2004 on a Harley, and Maggi got motion sick from sitting on the back. We've wondered if that would happen on the tandem, (since it never has yet), but never had the chance/time/money/grit to go try! maybe one day!

Nice ride, Mr and Mrs TG!
__________________
BICYCLE - [bahy-si-kuhl] - Noun :> A medical device used to correct the common geriatric condition of OFS, (Old, Fat & Slow), in a manner that does not induce brain-decaying boredom like walking or running.

2005 Trek T2000 Tandem, 2003 Burley Tosa Tandem, Pacific Dualie beater tandem, and 6 singles including 2 fixies.

TampaBayCycling.com - A LOCAL Cycling Forum
The Florida Panthers Tandem Club
Onegun is offline   Reply With Quote
Old 09-09-09, 03:34 PM   #382
TandemGeek
hors category
 
TandemGeek's Avatar
 
Join Date: Jan 2002
Bikes:
Posts: 7,212
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 2 Post(s)
Moved to new thread entitled: Riding the Tail of the Dragon... Woohoo

Didn't want to hijack or otherwise clutter of the photo gallery....

Last edited by TandemGeek; 09-09-09 at 06:10 PM.
TandemGeek is offline   Reply With Quote
Old 09-09-09, 04:17 PM   #383
Homeyba
Senior Member
 
Homeyba's Avatar
 
Join Date: Jul 2009
Location: Central Coast, California
Bikes: Colnago C-50, Calfee Dragonfly Tandem, Specialized Allez Pro, Peugeot Competition Light
Posts: 3,370
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
I would have passed those Harley guys up. I hate slowpokes ruining a good descent. I passed about a dozen of them coming down off the Climb to Kaiser (Sierra Nevada's)one year. Got thumbs up from them too as I went by.
Homeyba is offline   Reply With Quote
Old 09-09-09, 04:59 PM   #384
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)
Haha, I bet you he had to crop you guys out in order to show all his Harley friends the pics.
uspspro is offline   Reply With Quote
Old 09-11-09, 09:51 AM   #385
Tackdriver56
Recumbent Tandem Captain
 
Tackdriver56's Avatar
 
Join Date: Aug 2006
Location: New England
Bikes: RANS Screamer and Stratus
Posts: 38
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by andydreisch View Post
My wife would never allow me to ride behind her. And I don't trust myself, either.

I'll post a pic shortly.

Andy
I've been BEGGING my wife to Captain the Screamer... she LIKES enjoying the scenery.
Tackdriver56 is offline   Reply With Quote
Old 09-11-09, 09:52 AM   #386
lhbernhardt
Dharma Dog
 
lhbernhardt's Avatar
 
Join Date: Mar 2006
Location: Vancouver, Canada
Bikes: Rodriguez Shiftless street fixie with S&S couplers, Kuwahara tandem, Trek carbon, Dolan track
Posts: 2,073
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Luis & Trudy on the near-vintage Kuwahara:

I can see by the single-bike Reynolds fork that this picture was taken in 2007. That fork is now on my fixed gear bike (too flexy for the tandem, especially under heavy braking, but durable), and the tandem is using a much beefier (too beefy - looks too much like a mountain bike fork!) Wound-Up carbon fork. Hard to find good carbon forks with 1" steerers.

Last edited by lhbernhardt; 09-11-09 at 10:21 AM.
lhbernhardt is offline   Reply With Quote
Old 09-12-09, 10:28 AM   #387
duppie
Senior Member
 
duppie's Avatar
 
Join Date: May 2007
Location: Chicago, IL
Bikes:
Posts: 516
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
taken at MTR 2009.
I like it, because it implies speed, something we usually lack
Duppie

Last edited by duppie; 09-12-09 at 11:02 AM.
duppie is offline   Reply With Quote
Old 09-14-09, 05:22 PM   #388
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)
After finishing Everest Challenge on Sunday (9/13/09). There will be a thread/post about this with more pics and a report eventually

uspspro is offline   Reply With Quote
Old 09-14-09, 05:37 PM   #389
gpelpel
Senior Member
 
gpelpel's Avatar
 
Join Date: Nov 2003
Location: Lafayette, CA
Bikes: Time VXRS, Specialized Stumpjumper FSR
Posts: 2,542
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by uspspro View Post
After finishing Everest Challenge on Sunday (9/13/09). There will be a thread/post about this with more pics and a report eventually [/img]
Wow! Congratulations, I bet Marin was a piece of cake compared to the Everest.
gpelpel is offline   Reply With Quote
Old 09-15-09, 12:24 PM   #390
DanRH
Senior Member
 
DanRH's Avatar
 
Join Date: Feb 2009
Location: SF Bay Area
Bikes: Cannondale RT2000 Tandem, Lapierre Carbon Single, IF Steel Crown Jewel Single, Lemond Fillmore Fixie, Bontrager hardtail MTB Single
Posts: 160
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
So USPSPRO, how was it compared to DMD? Steepness of climbs, etc...
DanRH is offline   Reply With Quote
Old 09-15-09, 01:04 PM   #391
Ritterview
Tandem Vincitur
 
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
After finishing Everest Challenge on Sunday (9/13/09). There will be a thread/post about this with more pics and a report eventually
Please include in your report any modifications of descent braking technique to avoid front rim Bohlmanization.
Ritterview is offline   Reply With Quote
Old 09-15-09, 02:13 PM   #392
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 DanRH View Post
So USPSPRO, how was it compared to DMD? Steepness of climbs, etc...

Quote:
Originally Posted by Ritterview View Post
Please include in your report any modifications of descent braking technique to avoid front rim Bohlmanization.
There will be an EC ride report, once I get around to making a nice one.

As far as the brake, that was mostly fixed in this update around a month ago: Another disc brake on a Calfee thread.

Since then, I installed the Avid Clean Sweep G3 rotor, and got some new EBC pads. I am pretty happy with the brakes now. There was a very technical and steep descent at the top of the last climb of day 2 of EC. The brakes worked fine.

As far as technique, not much different than before, except that I use the rear brake more that I did with full rim brakes. Rear brake does most of the slowing, and front brake provides power for turning-in.
uspspro is offline   Reply With Quote
Old 09-24-09, 10:07 AM   #393
Open Lateral
Banned.
 
Join Date: Sep 2009
Location: Austin, TX
Bikes: Paketa V2r, VECdM29er, a bunch of singles gathering dust.
Posts: 79
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Test run

I signed up for this thread...
The third pic was the start of HHH this year. The easiest century we have ever done, and our first HHH.
Attached Images
File Type: jpg HouseOfTandems1.jpg (58.8 KB, 488 views)
File Type: jpg IMG_1467.jpg (95.5 KB, 343 views)

Last edited by Open Lateral; 10-06-11 at 08:29 PM.
Open Lateral is offline   Reply With Quote
Old 09-24-09, 10:26 AM   #394
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 BikeForums.net View Post
I signed up for this thread...
The third pic was the start of HHH this year. The easiest century we have ever done, and our first HHH.
The red Supremo is smoking Excellent choice.
uspspro is offline   Reply With Quote
Old 09-24-09, 11:30 AM   #395
CGinOhio
Senior Member
 
CGinOhio's Avatar
 
Join Date: Oct 2006
Location: Northeast Ohio
Bikes: 2011 Co-Motion Nor'Wester, 2007 Co-Mo Speedster copilot tandem
Posts: 160
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)

At the completion of our tour from Pittsburgh to D.C. on the GAP and C&O trails.
CGinOhio is offline   Reply With Quote
Old 09-28-09, 05:06 PM   #396
andydreisch
Newbie but oldbie
 
Join Date: May 2006
Location: San Jose
Bikes: Trek 520, Lemond Victoire, Fisher Sugar 2, Cannondale tandem
Posts: 225
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
I saw your CGOAB journal. I was curious how you'd contend with a sloggy C&O trail. Now I know!! We had a similar, though far less harrowing, experience last summer.
andydreisch is offline   Reply With Quote
Old 09-28-09, 06:17 PM   #397
pablopsd
Senior Member
 
Join Date: Apr 2009
Bikes:
Posts: 121
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Here is the triplet at ETR in July. Don't tell the Mrs. I posted it! Unfortunately, since I am the ex photographer, there are not any pictures of us doing our local TT or just us on the tandem. Trying to teach my sister how to shoot!

Paul
Attached Images
File Type: jpg _DSC2029.JPG (69.3 KB, 270 views)
pablopsd is offline   Reply With Quote
Old 10-17-09, 06:24 PM   #398
gpelpel
Senior Member
 
gpelpel's Avatar
 
Join Date: Nov 2003
Location: Lafayette, CA
Bikes: Time VXRS, Specialized Stumpjumper FSR
Posts: 2,542
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Finally a picture of our recently acquired Santana ('93 Visa). Almost two months we took the plunge. It took about two weeks to take it apart, clean it, and install some new parts (brake levers and v-brakes, stoker suspension post, stem, handlebars, cables and housings, rack, tires, and saddles). We are really enjoying it.


Last edited by gpelpel; 10-17-09 at 06:33 PM.
gpelpel is offline   Reply With Quote
Old 10-18-09, 09:40 PM   #399
Gene Pointer
Newbie
 
Gene Pointer's Avatar
 
Join Date: Aug 2009
Location: Bay View, Washington
Bikes: 1985 Cannondale ST400 Touring, 1999 Cannondale F400 Volvo MTB, 1999 Cannondale Multisport 2000 Triathlon, and a 2002 Raleigh Coupe tandem MTB
Posts: 4
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
This is our 2002 Raleigh Coupe my wife Lida and I bought new. We have used it to tour a few of the San Juan Islands in Washington state.




Last edited by Gene Pointer; 10-21-09 at 01:06 AM.
Gene Pointer is offline   Reply With Quote
Old 10-21-09, 03:21 PM   #400
JohnKScott
Senior Member
 
JohnKScott's Avatar
 
Join Date: Mar 2007
Location: Franklin, TN
Bikes: None yo damn binness
Posts: 3,383
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Me and my 9 year old stoker daughter with our recently acquired and fixed up 1986 Nishiki tandem. This was on our first "official" ride on the Silver Comet Trail down in Georgia. We had done a couple practice rides prior. We are getting a pretty good rythmn and communication going! This bike is a lot of fun and I hope it gives us at least a few years of great times!

JohnKScott 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 06:57 AM.