[optimator]

Any of you frame builders out there ever pinned and JB WELDed shifter bosses to a frame to protect the finish or maybe because it was carbon or alu? - Thanks

[The BikeForums Team]

This is an archived thread, you can find the full version of this thread, with images, links and more content here.

Ready to buy? Check out these two online bike stores:
- http://www.nashbar.com (you can find the latest bike nashbar coupons in this thread)
- http://www.performancebike.com (you can find the latest performance bike coupons in this thread)

Cya on the forums,
- The BikeForums Team
- http://www.bikeforums.net

[optimator]

I was forwarded this from a guy on another forum. http://www.novacycles.com/catalog/product_info.php?cPath=61_144_178&products_id=835 (http://www.novacycles.com/catalog/product_info.php?cPath=61_144_178&products_id=835)
It could be the answer if the radius on the backside of the boss matches the frametube! - O

[Nessism]

...and you don't mind drilling a hole through the frame.

[Peterpan1]

Is your bike Al? If it isn't then you run into the issue of whether the radius will be right (epoxy likes to fill a void), and whether the hole size that is correct for aluminum is correct for a narrower tube where a higher percentage of the material will be gutted. Also in some cases you may be in a thin wall section of a metal tube.

If I did have a steel bike I wanted to add levers to and didn't want to mar the paint, then I would use clamp-on style shifters. My first bike, a Peugeot, hardly had a BOs on it, everything was secured around the tube. Another alternative would be to use bar-ends, which is what my bike has though there is a cable guide that uses the shifter BO anyway.

The aluminum example shows that adhesive by itself may not be enough.