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

Go Back   > >

Track Cycling: Velodrome Racing and Training Area Looking to enter into the realm of track racing? Want to share your experiences and tactics for riding on a velodrome? The Track Cycling forums is for you! Come in and discuss training/racing, equipment, and current track cycling events.

User Tag List

Thread Tools Search this Thread
Old 10-25-13, 02:00 PM   #1
Thread Starter
Join Date: Oct 2013
Posts: 2
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Need to Scratch or Score Rear Dropout?

Building up a Blue TR250, and the polished aluminum rear dropouts are very smooth. Do I need to score or otherwise scratch them up to ensure bolt adhesion? Really don't want to drop a chain. Thanks.
PacNWviaFL is offline   Reply With Quote
Old 10-25-13, 04:21 PM   #2
carleton's Avatar
Join Date: Jul 2005
Location: Atlanta, GA
Posts: 14,074
Mentioned: 25 Post(s)
Tagged: 0 Thread(s)
Quoted: 486 Post(s)
Is the dropout new, damaged?

Pics would help.

Without seeing it, a chain tug would definitely solve the potential problem, but the can be time consuming to use.
Originally Posted by gtrob View Post
Roadies can run tempo all year as that's what humans were designed for. If you want to be a cheetah, lay around and lick your paws more.
carleton is offline   Reply With Quote
Old 10-25-13, 05:03 PM   #3
Brian Ratliff
Senior Member
Brian Ratliff's Avatar
Join Date: May 2002
Location: Near Portland, OR
Bikes: Three road bikes. Two track bikes.
Posts: 10,095
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 28 Post(s)
If it's aluminum, you don't need to do anything. The steel fixing bolts will take care of that for you. If it is polished stainless steel, a "chain tug" might be in order.
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 10-25-13, 08:01 PM   #4
Senior Member
Quinn8it's Avatar
Join Date: Jan 2008
Location: Hollywood
Bikes: Bianchi Pista, Bianchi Vigorelli
Posts: 956
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Had a look at the frame-

You do not need to treat those dropouts..

if the bike is new- you are all good. and if it is old and the dropouts are trashed- replace them.
Quinn8it is offline   Reply With Quote
Old 11-18-13, 08:53 PM   #5
Senior Member
Join Date: Nov 2008
Location: Seattle WA USA
Bikes: Jamis Xenith SL; LiteSpeed Tachyon Fixie, Redline Cross/Rain & Winter Bike, Argon E116 TT/Tri, Argon E99 Track
Posts: 52
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
This last season I started to pull my wheel over during really hard efforts. Kinda just all of the sudden started to happen. Put some tugs on, broke the drive side one. Ended up scoring the drop out and that fixed things.... then I figured I should de grease the drop outs. After some 91% rubbing alcohol I was shocked how much my drive side dropout was dirty. It looked clean, it felt clean... Lesson learned, de-grease first. Guessing some chain lube and oils from my hands where the true issue. I've changed my chain to locate the axle on a different part of the drop out not scored and have not been able to shift the wheel since cleaning the drop outs. Now I carry gloved and alcohol with and dab the drop outs clean when changing wheels at the track. I have an Argon 18 E99 so a different frame, but keeping things clean is still a good idea.
magiccx is offline   Reply With Quote

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 03:33 AM.

  • Ask a Question
    get answers from real people!
Click to start entering your question.