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 03-27-08, 08:27 AM   #1
bdcheung
Carpe Diem
Thread Starter
 
bdcheung's Avatar
 
Join Date: Sep 2006
Location: MABRA
Bikes: 2007 CAAD9; 2014 CAADX; PedalForce CG1
Posts: 13,147
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 1 Post(s)
Bent RD

Has this ever happened to you? I was in a crash, bent the RD, but the hanger is fine (checked with alignment tool).

edit: it's a Rival RD. Been replaced now, everything is fine.
__________________
"When you are chewing the bars at the business end of a 90 mile road race you really dont care what gear you have hanging from your bike so long as it works."
ΛΧΑ ΔΞ179 - 15% off your first Hammer Nutrition order!

Last edited by bdcheung; 03-27-08 at 09:12 AM.
bdcheung is offline   Reply With Quote
Old 03-27-08, 08:59 AM   #2
jrennie
Race to train
 
jrennie's Avatar
 
Join Date: May 2005
Location: suffering on the back
Bikes:
Posts: 3,115
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Which part is bent? Is it the pulley cage, pivot bolt, pivot arms?
jrennie is offline   Reply With Quote
Old 03-27-08, 09:02 AM   #3
bdcheung
Carpe Diem
Thread Starter
 
bdcheung's Avatar
 
Join Date: Sep 2006
Location: MABRA
Bikes: 2007 CAAD9; 2014 CAADX; PedalForce CG1
Posts: 13,147
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 1 Post(s)
I think it's the cage... when viewed from the rear of the bike, the cage wasn't vertical, and the top (jockey?) pulley was skewed. The team mechanic and I tried bending it back, but could never get it back "to normal" (never really thought we could).
__________________
"When you are chewing the bars at the business end of a 90 mile road race you really dont care what gear you have hanging from your bike so long as it works."
ΛΧΑ ΔΞ179 - 15% off your first Hammer Nutrition order!
bdcheung is offline   Reply With Quote
Old 03-27-08, 09:09 AM   #4
waterrockets 
Making a kilometer blurry
 
waterrockets's Avatar
 
Join Date: May 2006
Location: Austin (near TX)
Bikes: rkwaki's porn collection
Posts: 26,130
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 1 Post(s)
So, the cage probably isn't bent, it's the cage pivot (if the top pulley is misaligned too).
waterrockets is offline   Reply With Quote
Old 03-27-08, 09:12 AM   #5
bdcheung
Carpe Diem
Thread Starter
 
bdcheung's Avatar
 
Join Date: Sep 2006
Location: MABRA
Bikes: 2007 CAAD9; 2014 CAADX; PedalForce CG1
Posts: 13,147
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 1 Post(s)
yeah, probably that.
__________________
"When you are chewing the bars at the business end of a 90 mile road race you really dont care what gear you have hanging from your bike so long as it works."
ΛΧΑ ΔΞ179 - 15% off your first Hammer Nutrition order!
bdcheung is offline   Reply With Quote
Old 03-27-08, 09:38 AM   #6
eskimo85
Senior Member
 
eskimo85's Avatar
 
Join Date: Nov 2005
Location: Chicago
Bikes: giant comp2 tcr, giant xtc
Posts: 645
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 1 Post(s)
Bend it back, it will be fine.
eskimo85 is offline   Reply With Quote
Old 03-27-08, 09:41 AM   #7
bdcheung
Carpe Diem
Thread Starter
 
bdcheung's Avatar
 
Join Date: Sep 2006
Location: MABRA
Bikes: 2007 CAAD9; 2014 CAADX; PedalForce CG1
Posts: 13,147
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 1 Post(s)
Quote:
Originally Posted by eskimo85 View Post
Bend it back, it will be fine.
Tried that (see my second post), couldn't get it perfect.
__________________
"When you are chewing the bars at the business end of a 90 mile road race you really dont care what gear you have hanging from your bike so long as it works."
ΛΧΑ ΔΞ179 - 15% off your first Hammer Nutrition order!
bdcheung is offline   Reply With Quote
Old 03-27-08, 01:41 PM   #8
Namenda
.
 
Namenda's Avatar
 
Join Date: Jul 2005
Location: "The Woo", MA
Bikes:
Posts: 4,830
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
I'm waiting for the ebay listing..."gently used, low miles, mild cosmetic damage that doesn't affect functionality, sold as-is"
Namenda is offline   Reply With Quote
Old 03-27-08, 02:18 PM   #9
Brian Ratliff
Senior Member
 
Brian Ratliff's Avatar
 
Join Date: May 2002
Location: Near Portland, OR
Bikes: Three road bikes. Two track bikes.
Posts: 10,065
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 3 Post(s)
I assume you are okay... from the crash, that is?
__________________
Cat 2 Track, Cat 3 Road.
"If you’re new enough [to racing] that you would ask such question, then i would hazard a guess that if you just made up a workout that sounded hard to do, and did it, you’d probably get faster." --the tiniest sprinter
Brian Ratliff is offline   Reply With Quote
Old 03-27-08, 02:41 PM   #10
bdcheung
Carpe Diem
Thread Starter
 
bdcheung's Avatar
 
Join Date: Sep 2006
Location: MABRA
Bikes: 2007 CAAD9; 2014 CAADX; PedalForce CG1
Posts: 13,147
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 1 Post(s)
Nothing serious. Road rash, busted right shifter, new bar tape, that's about it.
__________________
"When you are chewing the bars at the business end of a 90 mile road race you really dont care what gear you have hanging from your bike so long as it works."
ΛΧΑ ΔΞ179 - 15% off your first Hammer Nutrition order!
bdcheung is offline   Reply With Quote
Old 03-27-08, 04:03 PM   #11
R900
Double Secret Probation
 
R900's Avatar
 
Join Date: Aug 2005
Location: Eastern Indiana
Bikes: Madone 6 series SSL, Cannondale CX9, Trek TTX, Trek 970, Trek T2000
Posts: 2,578
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
I bent my Dura-Ace RD new years eve. The LBS bent the hanger to straighten, but I wasn't totally convinced. I bought the Park alignment tool, and sure enough the RD was the problem. I ended up replacing the RD and realigned the hanger. It's been great since.
__________________
Time to Ride...
R900 is offline   Reply With Quote
Old 03-27-08, 06:08 PM   #12
kensuf
My idea of fun
 
kensuf's Avatar
 
Join Date: Jun 2006
Location: Gainesville, FL
Bikes: '06 Litespeed Tuscany, '02 Kona Lavadome, '07 Giant TCR Advanced, '07 Karate Monkey
Posts: 9,804
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by bdcheung View Post
Has this ever happened to you? I was in a crash, bent the RD, but the hanger is fine (checked with alignment tool).

edit: it's a Rival RD. Been replaced now, everything is fine.
No.

But I was sprinting tonight and I bent an FSA chainring, threw my chain, locked up my drivetrain, and left a nice nasty brown stain in my shorts.

Does that count?
kensuf is offline   Reply With Quote
Old 03-28-08, 06:46 AM   #13
carpediemracing
Super Moderator
 
Join Date: Feb 2007
Location: Tariffville, CT
Bikes: Tsunami Bikes
Posts: 14,579
Mentioned: 3 Post(s)
Tagged: 0 Thread(s)
Quoted: 66 Post(s)
Rear derailleurs are surprisingly resilient. I'm surprised the rear der didn't work out. I regularly tweak rear derailleurs when friends complain about poor shifting.

You should check not only vertical up/down alignment but fore/aft alignment too. Check when in the 39x11 (or equivalent cross chained gear) so the rear der cage is as fore/aft as possible. This is normally where tweaking makes a difference.

For next time,
cdr
carpediemracing is offline   Reply With Quote
Old 03-28-08, 06:51 AM   #14
bdcheung
Carpe Diem
Thread Starter
 
bdcheung's Avatar
 
Join Date: Sep 2006
Location: MABRA
Bikes: 2007 CAAD9; 2014 CAADX; PedalForce CG1
Posts: 13,147
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 1 Post(s)
Next time I'll fly you out here to be my mechanic, CDR
__________________
"When you are chewing the bars at the business end of a 90 mile road race you really dont care what gear you have hanging from your bike so long as it works."
ΛΧΑ ΔΞ179 - 15% off your first Hammer Nutrition order!
bdcheung is offline   Reply With Quote
Old 03-28-08, 08:35 AM   #15
carpediemracing
Super Moderator
 
Join Date: Feb 2007
Location: Tariffville, CT
Bikes: Tsunami Bikes
Posts: 14,579
Mentioned: 3 Post(s)
Tagged: 0 Thread(s)
Quoted: 66 Post(s)
Heh. Only if there's a crit with a slight hill in it in your vicinity. Too bad my in-law's in-laws moved from Fairfax. For next time don't toss the der too quickly.

cdr
carpediemracing 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 12:18 PM.