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


Go Back   > >

"The 33"-Road Bike Racing We set this forum up for our members to discuss their experiences in either pro or amateur racing, whether they are the big races, or even the small backyard races. Don't forget to update all the members with your own race results.

User Tag List

Reply
 
Thread Tools Search this Thread
Old 07-08-14, 04:44 AM   #51
carpediemracing
Super Moderator
 
Join Date: Feb 2007
Location: Tariffville, CT
Bikes: Tsunami Bikes
Posts: 14,582
Mentioned: 3 Post(s)
Tagged: 0 Thread(s)
Quoted: 66 Post(s)
I was soft pedaling while coasting the other day, meaning the freehub body was clicking, aka not engaged. I could get the SRM to read 2-5 watts. I know my bearings are pretty crunchy, not as bad as 2010 (when I could get the SRM to read 15 watts on no load - the bearings were literally indexed every so many degrees). My comment on Contador's bearing thing has got me thinking that saving 2-5 watts would be significant for me, at least in terms of background wasted energy. One of these days.
__________________
"...during the Lance years, being fit became the No. 1 thing. Totally the only thing. It’s a big part of what we do, but fitness is not the only thing. There’s skills, there’s tactics … there’s all kinds of stuff..." Tim Johnson
carpediemracing is offline   Reply With Quote
Old 07-08-14, 06:23 AM   #52
ips0803
Senior Member
 
ips0803's Avatar
 
Join Date: Feb 2013
Bikes:
Posts: 242
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by hack View Post
On a whim, I picked up a new old stock Scott Foil (and because it was super cheap), but it's got a 25mm offset seatpost and I'm needing the zero offset version. Anyone know if these are available for sale anywhere?

41?
There's a thread on weightweenies for people to swap.

tetonrider, just curious what bike is this going to be on?
ips0803 is offline   Reply With Quote
Old 07-08-14, 10:18 AM   #53
hack
Senior Member
 
hack's Avatar
 
Join Date: Oct 2006
Location: Folsom, CA
Bikes:
Posts: 3,136
Mentioned: 12 Post(s)
Tagged: 0 Thread(s)
Quoted: 80 Post(s)
Quote:
Originally Posted by Racer Ex View Post
Yes. Scott will sell you one at a stupid price, but if you Google around I've seen several people that would swap your 25 for their zero (I would have when I got my Foil).
Thanks. I'll do some searching, would prefer to not shell out a ton of cash as I'm trying to keep the costs for this bike loooow.

Quote:
Originally Posted by ips0803 View Post
There's a thread on weightweenies for people to swap.
I'll check it out
hack is offline   Reply With Quote
Old 07-09-14, 03:14 PM   #54
tetonrider
Senior Member
Thread Starter
 
Join Date: Aug 2007
Bikes:
Posts: 3,528
Mentioned: 18 Post(s)
Tagged: 0 Thread(s)
Quoted: 107 Post(s)
Quote:
Originally Posted by ips0803 View Post
tetonrider, just curious what bike is this going to be on?
i'll be riding a tarmac.
tetonrider is offline   Reply With Quote
Old 07-09-14, 03:37 PM   #55
tetonrider
Senior Member
Thread Starter
 
Join Date: Aug 2007
Bikes:
Posts: 3,528
Mentioned: 18 Post(s)
Tagged: 0 Thread(s)
Quoted: 107 Post(s)
thanks for the suggestions.

Quote:
Originally Posted by Racer Ex View Post
If you really want to go light on this ditch the Di and go to a single friction shifter mounted on the bar and a SRAM red rear mech (it'll take a 14t lower jockey).
Di2 RD, battery, wires and TT shift/brake lever are ~375g for me.

going the red route (rd, friction shifter, separate brake lever, cable/housing) would be about 300g. that's a meaningful difference.

might leave this one on the table for next year as it involves buying more parts and a bit more building. (not much, but at this point i'm low on time.)

Quote:
Originally Posted by Racer Ex View Post
10speed Token aluminum cassette.
I've got a recon cassette on the way. check.

Quote:
Originally Posted by Racer Ex View Post
Tufo S3 Lite tires (145g).
i'm seeing ~200g on the tufo (tubular). am i wrong?

regardless, i've got some light vittoria tubulars (190g) on a light wheel set. glued up, tested low Crr... race proven for me already.

Quote:
Originally Posted by Racer Ex View Post
Ti skewers with screw on fasteners.
got some light QRs coming in at 33g for the set. could use the bolt-ons, though. got a suggestion there?

Quote:
Originally Posted by Racer Ex View Post
Carbon saddle as noted.
saddle's already as light as i am willing to go right now, in the model that works for me.

could go with a saddle+post combination...they make some crazy light ones. probably looking at 50-100g, which at this stage where gains are tiny is actually huge.

Quote:
Originally Posted by Racer Ex View Post
No rear brake. KCNC front with a cyclocross type lever.
already doing this one. already have a light + functional brake (eebrake) on my rig. it's the only light brake that i've found where performance isn't a trade-off.

i'll be running a di2 tt brake/shift lever. it's essentially the weight of a regular TT brake lever, so that's one area where di2 pays off a bit.

Quote:
Originally Posted by Racer Ex View Post
Powercordz cable. You can get a flat carbon MTB bar in the 105g range. There's around 2+ pounds right there.
i've used power cordz before on a MTB...shifting, not brake. couldn't get too cozy with them where failure would have a real consequence. for the HC my brakes shouldn't really be an issue, but i'm already running nokon (relatively light), and it's a front brake (short run)....and the powercordz would be destroyed after that one use (can't really reuse the inner). still, probably about 20g savings.

flat bar is definitely a savings of about 100g. i went the bullhorn route because i have one and i have the TT brake/shift levers. great thought.

Quote:
Originally Posted by Racer Ex View Post
If this is the Venge there's >200g of paint on it...
not the venge. my tarmac is approx 150g lighter (frame+fork).

at this point, i've got to pretty much shut things down. the HC is in about 2.5 weeks, i'm traveling for about 10 days in between, and i need to install and test the setup (wide/narrow single ring+no FD+no guides/guards; bullhorn+tt shifter setup, etc.).

i think i've trimmed about 3# off of my bike (which is ridiculous...it wasn't exactly heavy last year) vs how i ran it last year. the ideas above could trim another 300g (red, flat bar, powercordz, saddle+post), which is insane.

might leave those to ponder for next year, in case i'm close but fall short on my goal this year.

thank you!
tetonrider is offline   Reply With Quote
Old 07-09-14, 03:39 PM   #56
tetonrider
Senior Member
Thread Starter
 
Join Date: Aug 2007
Bikes:
Posts: 3,528
Mentioned: 18 Post(s)
Tagged: 0 Thread(s)
Quoted: 107 Post(s)
Quote:
Originally Posted by carpediemracing View Post
I was soft pedaling while coasting the other day, meaning the freehub body was clicking, aka not engaged. I could get the SRM to read 2-5 watts. I know my bearings are pretty crunchy, not as bad as 2010 (when I could get the SRM to read 15 watts on no load - the bearings were literally indexed every so many degrees). My comment on Contador's bearing thing has got me thinking that saving 2-5 watts would be significant for me, at least in terms of background wasted energy. One of these days.
cdd, man....with as measured as you are in so many areas....maintain that bike!

bearings aren't hard to replace.

incidentally, one reason why some pro teams use full ceramic bearings is not that they save energy (bikes are really the wrong application), but rather they can power wash the stuff without risk of corrosion. yeah, they have to use proper grease, but rust isn't a factor. a good steel bearing is pretty awesome.

losses like what you describe don't scale with power, so with your self-described lower average power, you would stand to see more gain.

if i were closer i'd personally replace them for you.
tetonrider is offline   Reply With Quote
Old 07-09-14, 03:41 PM   #57
tetonrider
Senior Member
Thread Starter
 
Join Date: Aug 2007
Bikes:
Posts: 3,528
Mentioned: 18 Post(s)
Tagged: 0 Thread(s)
Quoted: 107 Post(s)
Quote:
Originally Posted by carpediemracing View Post
Aluminum cogs? The big ones especially.

Have you optimized your pedals? Ti axle, esp for the short event. I think the Look hardware is steel, just soft. There are ti bolts out there for Looks. Alum spacers if they're not already, I don't know what they are. If it were me I'd make my Aerolites work. About 70g per pair with cleats and hardware (they say 38g per side, that's about right), but it's the devil to set up, you have to drill into your shoes. In fact I still want to make my Aerolites work but it's such a pain.
thanks for these, cdr. i do use Ti axles (you can convert look pedals aftermarket).

probably not going to do the aerolites at this point but may consider in the future...esp if this year is "close-but-not-quite."
tetonrider is offline   Reply With Quote
Old 07-09-14, 03:46 PM   #58
tetonrider
Senior Member
Thread Starter
 
Join Date: Aug 2007
Bikes:
Posts: 3,528
Mentioned: 18 Post(s)
Tagged: 0 Thread(s)
Quoted: 107 Post(s)
Quote:
Originally Posted by carpediemracing View Post
There's a guy that used to do the Gimbels ride with no post/saddle. I think he was featured in some local paper article. I tried to stay away from him.
had a MTB race a few years back where i broke a saddle rail in a crash. race was basically 25' all-out uphill followed by 20' downhill. had to ride the last 15' standing. that was pretty painful.

wound up losing a spot due to the crash but finished pretty respectably. i was 3rd or 4th over the top (the riders ahead of me were way out of my league)--and i didn't want to give up that performance.

in hindsight, it was pretty risky. the terrain wasn't insane at that point but the rest of the descent was fast & loose. my quads have never been so sore!
tetonrider is offline   Reply With Quote
Old 07-09-14, 04:21 PM   #59
rankin116
Senior Member
 
rankin116's Avatar
 
Join Date: Jun 2007
Location: ChapelBorro NC
Bikes:
Posts: 3,988
Mentioned: 2 Post(s)
Tagged: 0 Thread(s)
Quoted: 33 Post(s)
Quote:
Originally Posted by tetonrider View Post
for a laugh, i've thought about doing this climb with a backpack & jugs of water totaling what i used to weigh in 2009. quick calcs put me at 8-9' slower, but it is a substantial amount of weight so i think the back-of-the-envelope thing falls down a bit...would probably be far, far slower.
I'm sure I've missed it, but how much have you lost since 2009?
rankin116 is offline   Reply With Quote
Old 07-09-14, 04:27 PM   #60
tetonrider
Senior Member
Thread Starter
 
Join Date: Aug 2007
Bikes:
Posts: 3,528
Mentioned: 18 Post(s)
Tagged: 0 Thread(s)
Quoted: 107 Post(s)
Quote:
Originally Posted by rankin116 View Post
I'm sure I've missed it, but how much have you lost since 2009?
about 50#. i used to play ice hockey and was a defenseman on some teams (though i preferred playing center). wish i had a body composition/DXA from back then. definitely had more body fat, but a whole bunch of what i lost is upper body muscle....along with a bunch of fat. i'd guess i was something like low-20s.

as of this morning, i'm 1.5# away from the target weight i set 8 months ago. will probably go for a DXA in a few weeks, just out of curiosity. i've been a little heavier and ~9% BF. i think i'm lighter and leaner now. i'd guess 7-8%.
tetonrider is offline   Reply With Quote
Old 07-09-14, 04:32 PM   #61
Ygduf 
¯\_(ツ)_/¯
 
Ygduf's Avatar
 
Join Date: Jun 2008
Location: Redwood City, CA
Bikes: aggressive agreement is what I ride.
Posts: 9,397
Mentioned: 10 Post(s)
Tagged: 0 Thread(s)
Quoted: 80 Post(s)
make sure to use super short valve extenders

I see we're still ignoring the colonic suggestion. you could be 3lbs under your goal weight!
__________________

strava.com/athletes/ygduf
Ygduf is offline   Reply With Quote
Old 07-09-14, 09:16 PM   #62
carpediemracing
Super Moderator
 
Join Date: Feb 2007
Location: Tariffville, CT
Bikes: Tsunami Bikes
Posts: 14,582
Mentioned: 3 Post(s)
Tagged: 0 Thread(s)
Quoted: 66 Post(s)
Quote:
Originally Posted by tetonrider View Post
cdd, man....with as measured as you are in so many areas....maintain that bike!

bearings aren't hard to replace.

incidentally, one reason why some pro teams use full ceramic bearings is not that they save energy (bikes are really the wrong application), but rather they can power wash the stuff without risk of corrosion. yeah, they have to use proper grease, but rust isn't a factor. a good steel bearing is pretty awesome.

losses like what you describe don't scale with power, so with your self-described lower average power, you would stand to see more gain.

if i were closer i'd personally replace them for you.
Arg. I'm buying new bearings now.
__________________
"...during the Lance years, being fit became the No. 1 thing. Totally the only thing. It’s a big part of what we do, but fitness is not the only thing. There’s skills, there’s tactics … there’s all kinds of stuff..." Tim Johnson
carpediemracing is offline   Reply With Quote
Old 07-10-14, 05:38 PM   #63
tetonrider
Senior Member
Thread Starter
 
Join Date: Aug 2007
Bikes:
Posts: 3,528
Mentioned: 18 Post(s)
Tagged: 0 Thread(s)
Quoted: 107 Post(s)
Quote:
Originally Posted by carpediemracing View Post
Arg. I'm buying new bearings now.
money well spent. i think HED uses a pretty common bearing.

the zipp steel bearings are actually really, really nice, though not dirt cheap. i'd take more frequent new bearing over expensive bearings any day. ironically, those who race/ride in inclement weather are probably better candidates for full ceramics.

hope they treat you right, cdr.
tetonrider is offline   Reply With Quote
Old 07-10-14, 06:39 PM   #64
carpediemracing
Super Moderator
 
Join Date: Feb 2007
Location: Tariffville, CT
Bikes: Tsunami Bikes
Posts: 14,582
Mentioned: 3 Post(s)
Tagged: 0 Thread(s)
Quoted: 66 Post(s)
Quote:
Originally Posted by tetonrider View Post
money well spent.

hope they treat you right, cdr.
BB30 bearings. My cranks don't turn really easily. Before I bought the BB30 facing tools I could see as high as 15 watts, but that was at unrealistically high rpms, like 150 rpm. At normal rpms it was something like 6-8w. This was early 2010, my "good" year.
__________________
"...during the Lance years, being fit became the No. 1 thing. Totally the only thing. It’s a big part of what we do, but fitness is not the only thing. There’s skills, there’s tactics … there’s all kinds of stuff..." Tim Johnson
carpediemracing is offline   Reply With Quote
Old 07-10-14, 09:53 PM   #65
tetonrider
Senior Member
Thread Starter
 
Join Date: Aug 2007
Bikes:
Posts: 3,528
Mentioned: 18 Post(s)
Tagged: 0 Thread(s)
Quoted: 107 Post(s)
Quote:
Originally Posted by carpediemracing View Post
BB30 bearings. My cranks don't turn really easily. Before I bought the BB30 facing tools I could see as high as 15 watts, but that was at unrealistically high rpms, like 150 rpm. At normal rpms it was something like 6-8w. This was early 2010, my "good" year.
ahhhhh.... when you wrote earlier about the free hub engaging i misinterpreted that as there was bearing drag in the free hub. my mistake.

bb30...even easier. good luck! crunchy = not good.
tetonrider is offline   Reply With Quote
Old 07-15-14, 08:34 AM   #66
echappist 
fuggitivo solitario
 
Join Date: Jun 2009
Location: Arlington, VA
Bikes:
Posts: 8,791
Mentioned: 6 Post(s)
Tagged: 0 Thread(s)
Quoted: 72 Post(s)
you know, you could save a lot of trouble by getting a Trek Emonda. 10 lbs with wheels that are as light as the ones you'll be using, and you can shed additional weight by removing a few more parts.
echappist is offline   Reply With Quote
Old 07-15-14, 09:30 AM   #67
Ygduf 
¯\_(ツ)_/¯
 
Ygduf's Avatar
 
Join Date: Jun 2008
Location: Redwood City, CA
Bikes: aggressive agreement is what I ride.
Posts: 9,397
Mentioned: 10 Post(s)
Tagged: 0 Thread(s)
Quoted: 80 Post(s)
or a colonic.
__________________

strava.com/athletes/ygduf
Ygduf is offline   Reply With Quote
Old 07-15-14, 09:35 AM   #68
shovelhd 
Senior Member
 
shovelhd's Avatar
 
Join Date: Jun 2010
Location: Western MA
Bikes: Yes
Posts: 15,490
Mentioned: 4 Post(s)
Tagged: 0 Thread(s)
Quoted: 9 Post(s)
Fudgy is obsessed with all things rectal. NTTAWWT
shovelhd is offline   Reply With Quote
Old 07-15-14, 09:52 AM   #69
Gramercy
Senior Member
 
Join Date: Aug 2013
Location: Hoboken, NJ
Bikes: Trek 1.2
Posts: 812
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 2 Post(s)
I've read on here about bottom bracket issues - I don't really understand it. Do they wear over time from all of the torque applied to the pedals and, subsequently, the frame? Is there anything to look out for?
Gramercy is offline   Reply With Quote
Old 07-15-14, 10:08 AM   #70
thechemist
In the Pain Cave
 
thechemist's Avatar
 
Join Date: Mar 2008
Location: Nashville, TN
Bikes:
Posts: 1,669
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by Gramercy View Post
I've read on here about bottom bracket issues - I don't really understand it. Do they wear over time from all of the torque applied to the pedals and, subsequently, the frame? Is there anything to look out for?
Mine lasted about 5 months before I had a familiar clicking sound and I replaced them.
thechemist is offline   Reply With Quote
Old 07-15-14, 10:24 AM   #71
shovelhd 
Senior Member
 
shovelhd's Avatar
 
Join Date: Jun 2010
Location: Western MA
Bikes: Yes
Posts: 15,490
Mentioned: 4 Post(s)
Tagged: 0 Thread(s)
Quoted: 9 Post(s)
Quote:
Originally Posted by Gramercy View Post
I've read on here about bottom bracket issues - I don't really understand it. Do they wear over time from all of the torque applied to the pedals and, subsequently, the frame? Is there anything to look out for?
They are a lot like headsets. Prone to grit and water infiltration and easily buggered by hack mechanics.

Speaking of headsets mine has been making a cracking sound since Exeter. Another bill from that race.
shovelhd is offline   Reply With Quote
Old 07-15-14, 10:25 AM   #72
Ygduf 
¯\_(ツ)_/¯
 
Ygduf's Avatar
 
Join Date: Jun 2008
Location: Redwood City, CA
Bikes: aggressive agreement is what I ride.
Posts: 9,397
Mentioned: 10 Post(s)
Tagged: 0 Thread(s)
Quoted: 80 Post(s)
Quote:
Originally Posted by shovelhd View Post
Fudgy is obsessed with all things rectal. NTTAWWT
you're all talking $$$ for grams while I'm talking $ for kgs!
__________________

strava.com/athletes/ygduf
Ygduf is offline   Reply With Quote
Old 07-15-14, 04:13 PM   #73
cmh
Senior Member
 
Join Date: Jul 2005
Location: Portland, OR
Bikes:
Posts: 2,515
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by Ygduf View Post
or a colonic.
I lost about 5 lbs. getting a colonoscopy last fall. Not in the polyps that were removed - those were only a few grams. Mostly in the water loss and caloric deficit during the diarrhetic lead in that is basically a 48 hour colonic.
cmh is offline   Reply With Quote
Old 07-15-14, 04:51 PM   #74
carpediemracing
Super Moderator
 
Join Date: Feb 2007
Location: Tariffville, CT
Bikes: Tsunami Bikes
Posts: 14,582
Mentioned: 3 Post(s)
Tagged: 0 Thread(s)
Quoted: 66 Post(s)
Quote:
Originally Posted by Gramercy View Post
I've read on here about bottom bracket issues - I don't really understand it. Do they wear over time from all of the torque applied to the pedals and, subsequently, the frame? Is there anything to look out for?
The issue with my frame is a bit different. The builder didn't face etc the frame after building. Ends up that BB30 facing tools are pretty hard to find. I bought a set for myself. However, when I first built up the bike, I used a file (I know I know) to enlargen the tight spots. Really imprecise. The bearings went bad basically the instant I put them in - on a down hill, going about 40 mph, soft-pedaling in a 39x25, I could get the SRM to read 15 watts by pedaling really fast while still hearing the freehub coast.

Facing has made it better but my hack file job basically screwed up my BB shell. Now the bearings creak and such.

Any press fit BB bearing moves - the first Gary Fisher BBs were a nightmare. When Merlin used the press bearing BB we replaced bearings all the time. A Trek dealer told me that all the BB86s (press fit Shimano) get loose and it's basically a normal maintenance thing to replace the bearings. They go more frequently than rear tires, which should be about the quickest wearing thing on a bike.

This time I hope to do a better job, build up the gaps with something, etc. Maybe it'll last until the end of the summer.
__________________
"...during the Lance years, being fit became the No. 1 thing. Totally the only thing. It’s a big part of what we do, but fitness is not the only thing. There’s skills, there’s tactics … there’s all kinds of stuff..." Tim Johnson
carpediemracing is offline   Reply With Quote
Old 07-16-14, 06:26 AM   #75
ips0803
Senior Member
 
ips0803's Avatar
 
Join Date: Feb 2013
Bikes:
Posts: 242
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Do you use loctite when pressing the bearings? It will potentially solve your issues as long as you have a good enough press to keep everything square.
ips0803 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 06:32 AM.