UPDATE: Recent research has shown that 1998 and 99 model year Gary fisher Level Betty frames all used the same rear triangle. Likewise, all 1999 Gary Fisher Joshua frames have the same rear triangle as the Level Betty -- meaning this adapter works with many more models than previously known. There is also information suggesting the some of the Trek Y-Series bikes also used the same rear triangle -- stay tuned for more updates.
1998-99 Gary Fisher URT Frameset Disc Brake Adapter
Designed to work with:
1999 Gary Fisher Level Betty, All models
1999 Gary Fisher Joshua, All models
1998 Gary Fisher Level Betty, All models
Have a Fisher Level Betty SE? Want to run rear disc but cant find an old 22mm style brake caliper?
Now you can run a modern ISO standard disc brake with minimal mod to your frame!
This adapter is far more rigid than the cheesy A2Z plate steel ones that mount to the 22mm mount--much more surface area in contact with the frame and dropout means less deflection in heavy braking situations.
Mount the adatper to the dropout by first clamping the adapter in place with the wheel and quick release. Then mark the center of the 3 mounting holes on the dropout.
Next use a 3.6mm drill-bit to pre-drill being careful to remain centered and square when drilling. Then use a M4 tap to thread the three mounting screw holes in the dropout.
Finally, fasten the adapter to the frame using three M4x12 countersunk socket head stainless screws backed with nylon insert, stainless, lock nuts and you're ready to mount your modern ISO disc brake
Calculated Weight in 3D Printed in Stainless Steel is 65 grams (not including mounting screws).
Tweeted by Gary Fisher HIMSELF!
OMG!! Thanks for installing Fox RT @slackard: hey check out my 53mph Classic Fisher Level Betty SE Ebike w/retrofits http://t.co/yZnYZSYH
— Gary Fisher (@Gary_Fisher) December 15, 2012