Bicycle Mechanics - Need help finding adapter.

Bikeforums.net is a forum about nothing but bikes. Our community can help you find information about hard-to-find and localized information like bicycle tours, specialties like where in your area to have your recumbent bike serviced, or what are the best bicycle tires and seats for the activities you use your bike for.



PDA

View Full Version : Need help finding adapter.

082
11-04-09, 05:54 PM
Hi, I just recently bought a set off Avid bb5's and im having an issue finding out what size adapter i need to mount the rear caliper.

I have a 1998 A50r frame. Im not sure if the mounting holes are international size or what. Heres a picture...

http://img94.imageshack.us/img94/476...0283519315.jpg

Sorry for how crappy it is. Only camera i had was my DSi.

Any help?

CCrew
11-04-09, 06:57 PM
Link's not coming up.

You buy the Avid's used? All the new ones come with adapters. Rears use a standard IS mount and are specific to the diameter of the rotor you're running.

Basically one of these:

http://www.jensonusa.com/store/product/BR407Z14-Avid+Cps+Disc+Brake+Adapter.aspx

You're probably using a 160mm rear but I'm speculating there...
Svr
11-04-09, 07:11 PM
I have a 1998 A50r frame.

Way too vague to give a useful answer -- but in 1998, the Hayes 22mm chainstay mounting was common... and entirely different from the 51mm IS or 74mm post mount stantards of today.

A viewable photo or more info would be helpful.

082
11-04-09, 07:16 PM
Sorry. Heres the picture again. When i was at the bike shop they told me i could with those holes, I just would have to find an adapter

http://img.photobucket.com/albums/v317/-X-082/15867_305675470283_519315283_932087.jpg

They are smaller holes than the ones with the adapter that came with. And have a shorter spread inbetween. And yes i am using the 160mm rotors.
082
11-04-09, 07:56 PM
ok heres 2 more pics that might help better. This first one is the Mounting holes in comparison with the bracket they gave me.

http://img.photobucket.com/albums/v317/-X-082/15867_305767765283_519315283_932165.jpg

http://img.photobucket.com/albums/v317/-X-082/15867_305759360283_519315283_932158.jpg

Ive done a little re-search and it looks like i need somthing like this.

http://images.jensonusa.com/large/br/br307h00_____185__bx.jpg


Im so confused. I hate brakes right now. Imma use my foot.