Old 8-sp Shimano XT M-737 Disc-brake compatible?



P

Pete Grey

Guest
I'm rebuilding my older mountain bike and am thinking of switching from
canti's to discs, since I'm moving to a new set of wheels in the process.

Does anyone know if this series of shifters has enough pull for something
like the Avid BB7 mechanical discs? Or would I need to use the road version
of the brake?
I'd rather use the mountain version if possible, in case I upgrade my
shifters at a later date.

Thanks,

-pete
 
On Nov 10, 10:11 am, "Pete Grey" <[email protected]> wrote:
> I'm rebuilding my older mountain bike and am thinking of switching from
> canti's to discs, since I'm moving to a new set of wheels in the process.
>
> Does anyone know if this series of shifters has enough pull for something
> like the Avid BB7 mechanical discs? Or would I need to use the road version
> of the brake?
> I'd rather use the mountain version if possible, in case I upgrade my
> shifters at a later date.
>
> Thanks,
>
> -pete


If the "old" bike had cantilevers, then the brake levers have less
pull and more leverage than the new "V-brake" levers. You should
probably go with the "road" disc brakes to insure compatibility.

Jeff
 
On Nov 10, 10:11 am, "Pete Grey" <[email protected]> wrote:
> I'm rebuilding my older mountain bike and am thinking of switching from
> canti's to discs, since I'm moving to a new set of wheels in the process.
>
> Does anyone know if this series of shifters has enough pull for something
> like the Avid BB7 mechanical discs? Or would I need to use the road version
> of the brake?
> I'd rather use the mountain version if possible, in case I upgrade my
> shifters at a later date.
>
> Thanks,
>
> -pete


If the "old" bike had cantilevers, then the brake levers have less
pull and more leverage than the new "V-brake" levers. You should
probably go with the "road" disc brakes to insure compatibility.

Jeff
 
On 2007-11-10, Pete Grey <[email protected]> wrote:
> I'm rebuilding my older mountain bike and am thinking of switching from
> canti's to discs, since I'm moving to a new set of wheels in the process.
>
> Does anyone know if this series of shifters has enough pull for something
> like the Avid BB7 mechanical discs? Or would I need to use the road version
> of the brake?


BB7s need the same cable pull as V brakes. If you've got V brakes now,
your levers will work fine with BB7s. Otherwise you'll need the road
version or new brake levers.
 
On 2007-11-10, Pete Grey <[email protected]> wrote:
> I'm rebuilding my older mountain bike and am thinking of switching from
> canti's to discs, since I'm moving to a new set of wheels in the process.
>
> Does anyone know if this series of shifters has enough pull for something
> like the Avid BB7 mechanical discs? Or would I need to use the road version
> of the brake?


BB7s need the same cable pull as V brakes. If you've got V brakes now,
your levers will work fine with BB7s. Otherwise you'll need the road
version or new brake levers.