saint brake, m820, inconsistant.
santabruz
Posts: 40
sorry if this has been asked before,,,
i was just wondering if anyone on here is having or has had any problems with the new m820 saint brakes.
most of the journo's at the product launch in whistler last year, reported inconsistant feel, there are lots of threads on various forums about it, yet shimano claim to know nothing about it,
so has anyone else experianced this inconsistant feel in their brake.
on the ones i have the bite point will change randomly, one minute it bites close to the bar, next time i pull the lever it will bite at the top of the lever pull. then it will go back to the bar, then bite near the middle of the lever pull. it's weird. and very un nerving, lots of people on mtbr have reported this problem, and they have tried bleeding their brakes multiple times. but it doesnt seem to make much differance.
i was just wondering if anyone on here is having or has had any problems with the new m820 saint brakes.
most of the journo's at the product launch in whistler last year, reported inconsistant feel, there are lots of threads on various forums about it, yet shimano claim to know nothing about it,
so has anyone else experianced this inconsistant feel in their brake.
on the ones i have the bite point will change randomly, one minute it bites close to the bar, next time i pull the lever it will bite at the top of the lever pull. then it will go back to the bar, then bite near the middle of the lever pull. it's weird. and very un nerving, lots of people on mtbr have reported this problem, and they have tried bleeding their brakes multiple times. but it doesnt seem to make much differance.
0
Posts
And if you pump the lever, does the feel return?
My only issue with Shimano brakes is the mineral oil.. it "fades" pretty quick over persistant use, my deores have a similar issue and pretty much died on the last few descents at Afan!
However, if you pump the lever, they do start to come back.
Same thing happened with my Saint M810's.
From what I've read about journalist's having this problem, it's only when the brakes are dragged for a long time. Shimano do know about the problem, they just don't know how to fix it I think. I'm going to assume that it's just the fluid being put under more pressure and any air that was in the fluid is being turned into a little air bubble causing the problem kind of like degassing the DOT fluid for Avid and Formula bleeds in which case I can't see there being a fix for it. The old M810 levers were known for occasionally sucking in a slight bit of air unexpectedly.
I've been very very happy with my M820's though and they are worth persevering with IMO, bags of power and modulation in what I've experienced to be a very reliable package.
Cube LTD 29er
Glentress Trailfairies
I knew there must be a reason for using brake fluid in brakes...
Iron Horse Ojiki
Carrera Kraken
The Carrera Hardtail owners thread
Cube LTD 29er
Glentress Trailfairies
While I think they're great and very well modulated, they really need to ditch the mineral oil. Its too easy to boil on a long descent and once its boiled, they're censored until bled!
Could have saved a lot of effort on the ice tech stuff by changing the oil lol!