rims for disc brakes

I have XM117 rims on my stumpy FSR. It has disc hubs and is laced
properly for discs. Yet they aren't "XM117 disc" rims. Does the
presence of "disc" in the model number indicate it simply has no
braking surfaces? Does the lack thereof indicate it is not suitable
for discs, despite the wheelset having appropriate hubs and 4-parallel
spoke patterns? I'm guessing specialized wouldn't have put disc hubs
on rims not suited for discs, but I want to be sure.

Also, where can I find the max rotor size for my black elite fork?
Answer's site was of no help. Want to put the largest avid mech's on
that won't tear the bike apart.

Luke

You can use non disc rims for disc brakes, supposedly they are not made to
handle the forces that disc brakes put on rims but I haven't had any
problems with my Mavic 521's.


"Luke" wrote in message
news:2004050818370916807%ASDFASDFlrl@coxnet...
I have XM117 rims on my stumpy FSR. It has disc hubs and is laced
properly for discs. Yet they aren't "XM117 disc" rims. Does the
presence of "disc" in the model number indicate it simply has no
braking surfaces? Does the lack thereof indicate it is not suitable
for discs, despite the wheelset having appropriate hubs and 4-parallel
spoke patterns? I'm guessing specialized wouldn't have put disc hubs
on rims not suited for discs, but I want to be sure.

Also, where can I find the max rotor size for my black elite fork?
Answer's site was of no help. Want to put the largest avid mech's on
that won't tear the bike apart.

Luke

Luke wrote:
I have XM117 rims on my stumpy FSR. It has disc hubs and is laced
properly for discs. Yet they aren't "XM117 disc" rims. Does the
presence of "disc" in the model number indicate it simply has no
braking surfaces?


Yes


Does the lack thereof indicate it is not suitable
for discs, despite the wheelset having appropriate hubs and 4-parallel
spoke patterns?


No


I'm guessing specialized wouldn't have put disc hubs
on rims not suited for discs, but I want to be sure.


Don't put it past them, or anyone else for that matter ...
http://www.cpsc.gov/cpscpub/prerel/prhtml04/04522.html


Also, where can I find the max rotor size for my black elite fork?
Answer's site was of no help. Want to put the largest avid mech's on
that won't tear the bike apart.


6" max for single-crown QR forks according all fork manufacturers.
--
Slacker

"Luke" wrote in message
news:2004050818370916807%ASDFASDFlrl@coxnet...
I have XM117 rims on my stumpy FSR. It has disc hubs and is laced
properly for discs. Yet they aren't "XM117 disc" rims. Does the
presence of "disc" in the model number indicate it simply has no
braking surfaces? Does the lack thereof indicate it is not suitable
for discs, despite the wheelset having appropriate hubs and 4-parallel
spoke patterns? I'm guessing specialized wouldn't have put disc hubs
on rims not suited for discs, but I want to be sure.

Also, where can I find the max rotor size for my black elite fork?
Answer's site was of no help. Want to put the largest avid mech's on
that won't tear the bike apart.

Luke


This doesnt answer your ? but there's good info here.

http://www.tech-mavic.com/uk/produit...j_xcountry.htm

--

A big rotor on a light duty fork? Why you do this thing?

DTW .../\.../\.../\...

I've spent most of my money on mountain biking and windsurfing.
The rest I've just wasted.