Stumpjumper disc upgrade

<[email hidden]> wrote in message
news:[email hidden]...

Quoted message said:

I have a Specialized Stumpjumper comp disc pro that has hydraulic
Shimano XT brakes. I took it to the top of Parsenn mountain in Davos at
the weekend, and had a lot of difficulty slowing down....

If I fit a larger (SAINT ??) rotor to the front will the improvement be
significant ? Is it just a case of changing the rotor and a caliper
adaptor, or do I need a complete new brake kit ?
Any help appreciated
dave

I'm assuming your on the hardtail not the FSR. If I'm right, you've got Fox
forks. Depending on the year, there is a different rotor size limit on
these. As far as I know you should be able to put a larger rotor on with an
adapter.

Also think about:
If it's brand new, some bedding in is needed with discs.
If it's not, the system may need bleeding (I can't recall the interval for
Shimano brakes).
Try different pads, if you haven't already. Shimano's resin pads are
possibly not the best.

Skippy
E&OE

Yeah it has the Fox RL80 forks. I never though of trying new pads. I'll
do that first, as they are worn out now anyway!
Thanx
dave

Skippy said:

<[email hidden]> wrote in message
news:[email hidden]...

Quoted message said:

I have a Specialized Stumpjumper comp disc pro that has hydraulic
Shimano XT brakes. I took it to the top of Parsenn mountain in Davos at
the weekend, and had a lot of difficulty slowing down....

If I fit a larger (SAINT ??) rotor to the front will the improvement be
significant ? Is it just a case of changing the rotor and a caliper
adaptor, or do I need a complete new brake kit ?
Any help appreciated
dave

I'm assuming your on the hardtail not the FSR. If I'm right, you've got Fox
forks. Depending on the year, there is a different rotor size limit on
these. As far as I know you should be able to put a larger rotor on with an
adapter.

Also think about:
If it's brand new, some bedding in is needed with discs.
If it's not, the system may need bleeding (I can't recall the interval for
Shimano brakes).
Try different pads, if you haven't already. Shimano's resin pads are
possibly not the best.

Skippy
E&OE

<[email hidden]> wrote in message
news:[email hidden]...

Quoted message said:

Yeah it has the Fox RL80 forks. I never though of trying new pads. I'll
do that first, as they are worn out now anyway!
Thanx
dave

If they wore out in a short period they're probably the resin ones. If you
buy the brakes aftermarket, Shimano started sticking a set of sintered ones
in the box because the originals are less than good.

Skippy
E&OE