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2003 shimano xtr disk as light...

riderx

Monkey
Aug 14, 2001
704
0
Fredrock
Not sure, but the Formula B4 hydrolic is already there. They bill it as the lightest hydrolic cross country brake at 350g for everything - rotor, fluid, cable, caliber, lever and hardware. Works great and can be had for $130

Avid Single digit V is 186g, lever 86g + whatever a cable and housing is and you are right about at the B4 weight. Not sure if avid's weight includes pads either.

Don't forget a lot of disc hubs are heavy - especially Shimano's current disc hubs. A Hugi disc hub is a good deal and light too, so if you are doing the disc upgrade, you might lose weight on the hub if you pick the right one
 

SpasticJack

Monkey
Feb 25, 2002
344
0
yeah '03 XTR is a package deal regading the hubs. Might as well bill the weight as including the hubs, disks, calipers and levers. Unless of course $himano decides in their infinite wisdom to license the spline/lockring interface (ha ha) to other companies.
 
R

RideMonkey

Guest
I notice that SRAM is lisiting a disc brake in their lineup. Anyone know who makes this?
 

SpasticJack

Monkey
Feb 25, 2002
344
0
Grimeca last I heard. One of the mags had spy shots of them a while back. The mechanical looked pretty nice but I think Avid still rules that roost.
 

Ranger

Swift, Silent, Deadly!
Aug 16, 2001
180
0
Y'all can't see me...
Servus!

The SRAM disc has been available here in Europe since about the beginning of the year. Tests are saying it's performance lies somewhere between the XT disc and the Grimeca 8. Grimeca makes it on license to SRAM - probably a step up in the manufacturing process and materials departments.

All SRAM needs to do is start making cranks - then they can be seriously considered as competition for Shimano. I really get a kick out of the new X-O stuff from them. A shame that I can't buy any of it (and all my new XT stuff works just fine...)
 
G

gravity

Guest
Originally posted by Ranger
Servus!

The SRAM disc has been available here in Europe since about the beginning of the year. Tests are saying it's performance lies somewhere between the XT disc and the Grimeca 8. Grimeca makes it on license to SRAM - probably a step up in the manufacturing process and materials departments.

All SRAM needs to do is start making cranks - then they can be seriously considered as competition for Shimano. I really get a kick out of the new X-O stuff from them. A shame that I can't buy any of it (and all my new XT stuff works just fine...)
if only SRAM made good trigger shifters. oh, and if only it was available in australia.
 

riderx

Monkey
Aug 14, 2001
704
0
Fredrock
Originally posted by SCV10
yeah but for '03 XTR they have that cassette type lock ring for the disc. Hugi is out of the question.
I wasn't going to get into the XTR proprietary system they have working there - that's for another thread. :D I was speaking strickly towards making the move to discs in general if you are looking at weight. If you use the B4 you can move to discs without weight gain (and the price is pretty good too). Been using one on the front for almost 5 months and love it. Zero problems. I'd put one on the rear if I had a disc mount on my frame.
 

oldfart

Turbo Monkey
Jul 5, 2001
1,206
24
North Van
If the new XTR disc is the same diameter as the XT, then you will be able to use a number of discs and hubs. As long as the rotor is compatible. If that is IF.
 

Dog Welder

Turbo Monkey
Sep 7, 2001
1,123
0
Pasadena, CA
Hope Minis with rotor/fluid/caliper/lever is around 350 as well...pair that up with a Chris King ISo hub and you probably have one of the lightest combinations in existence. I just got a hope mini so I'll try to weight it to see.
 

Ian F

Turbo Monkey
Sep 8, 2001
1,016
0
Philadelphia area
Hope Minis (380g complete) and American Classic's Ultralight Disc hubs: 140g/F and 250g/R would be a pretty light set-up and provide more stopping power than your tires can give you.

Other light disc hubs...

DT-Swiss Hugi 240: 163g/F and 271g/R

Hayes Superlight: 166g/F and 272g/R

Chris King Universal: 150g/F and 282g/R

Hope splined (Hope 5-bolt disc specific): 166g/F and 318g/R
 

prophet6

Chimp
Mar 25, 2002
96
0
North Easton, MA
xtr rotors have dedicated hubs... the disc attached via a cassette type spline and a lockring... so until cris king and others start doing this, it's only gonna work with xtr.
 

greasemonkey

Chimp
Jul 4, 2001
23
0
WA
Magura's Marta brakes are as light or lighter than most v-brake systems.

Cables and housing are surprisingly heavy compared to braided kevlar hose filled with oil.