Where to get shallower DT shift lever boss covers?
#1
Senior Member
Thread Starter
Join Date: May 2015
Location: Richmond VA area
Posts: 2,618
Bikes: '00 Koga Miyata Full Pro Oval Road bike.
Mentioned: 17 Post(s)
Tagged: 0 Thread(s)
Quoted: 475 Post(s)
Likes: 0
Liked 8 Times
in
7 Posts
Where to get shallower DT shift lever boss covers?
I run downtube shifters on my road bike, and my downtube is oval rather than round. So the shifter boss covers arent shallow enough to fit snug agains the frame. I've found there are 2 types of these covers - flat and radiused. The flat kind is too flat, and the radiused kind is too round, I need something shallower. Anyone have a source for something like that? Below is an example of a radiused cover:
https://www.ebay.com/p/Shimano-7800-....c100005.m1851
https://www.ebay.com/p/Shimano-7800-....c100005.m1851
#2
aka: Dr. Cannondale
Join Date: Jul 2009
Posts: 7,732
Mentioned: 234 Post(s)
Tagged: 0 Thread(s)
Quoted: 2155 Post(s)
Liked 3,404 Times
in
1,205 Posts
Shimano made only those two types of boss, flat and concave.
I just use a Dremel tool with a sanding drum to shave off a little of the radius on the concave mounts. Works fine, takes about 30 seconds per boss.
I just use a Dremel tool with a sanding drum to shave off a little of the radius on the concave mounts. Works fine, takes about 30 seconds per boss.
__________________
Hard at work in the Secret Underground Laboratory...
Hard at work in the Secret Underground Laboratory...
#3
Senior Member
Thread Starter
Join Date: May 2015
Location: Richmond VA area
Posts: 2,618
Bikes: '00 Koga Miyata Full Pro Oval Road bike.
Mentioned: 17 Post(s)
Tagged: 0 Thread(s)
Quoted: 475 Post(s)
Likes: 0
Liked 8 Times
in
7 Posts
Thanks for posting. Yeah I had wondered if there were only the two types of covers, and had been thinking a 'custom' version might be the only way to do it. I guess by the time non-round shaped downtubes came out most bikes were using brifters.
#4
Banned.
Join Date: Dec 2007
Posts: 27,199
Mentioned: 34 Post(s)
Tagged: 1 Thread(s)
Quoted: 378 Post(s)
Liked 1,409 Times
in
909 Posts
A file. There are some convex metal files that you could use, set on a table, run the backing plate back and forth on them.
Last edited by RobbieTunes; 12-17-18 at 03:40 PM.
#5
Senior Member
Join Date: Jul 2015
Location: Seal Beach Ca. On the right , next to Long Beach
Posts: 1,815
Bikes: 86' Centurion Ironman
Mentioned: 72 Post(s)
Tagged: 0 Thread(s)
Quoted: 628 Post(s)
Liked 316 Times
in
175 Posts
Wrap a piece of sandpaper around the down tube and sand away , with the spacer . It will be perfect .