stirk
Burner
The R/RS has a much smaller end, why is that? Trying to fix the problem?Can you get a shot side on with it sitting on a bench?
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The R/RS has a much smaller end, why is that? Trying to fix the problem?Can you get a shot side on with it sitting on a bench?
Issues are around the diameter not length, I'm thinking this sample has been damaged. Keen to see it in a better shot and if the other lever's piston is the same.The R/RS has a much smaller end, why is that? Trying to fix the problem?
Saab says he bought and fixed - perhaps an old version of the part. Although the narrowing between the two seals suggests it might be a new piston?Issues are around the diameter not length, I'm thinking this sample has been damaged. Keen to see it in a better shot and if the other lever's piston is the same.
But really, NFI.
Nope, just stupid. I sided with everyone on MTBR who gave him a hard time. O-Ring material compatibility charts have existed for a long time.
Sorry dude wasn't directing my anger at you, but rather at PVD. He should know better, the whole exercise reeked of clickbait.Yeah, didn't say it wasn't stupid, just an interesting fact.
Did the other levers piston look the same at the tip?View attachment 333244
Sorry fellas but this is the only other photo I have of the pistonand I've already repaired the brake.
do you mean "not" bogus as the new one is smaller?[/QUOTE]Boom Kings new and old pistons.
Old on left, 9.48mm at its widest.
New on right. 9.35mm at its widest.
Other critical dimensions match so my theory of swelling is bogus.
Both are turned in lathes.
You are screwed.I have 4 bikes with Guides, 3 of those are currently out of action with this problem, all in the space of a few weeks.
Talking to the mechanic at the LBS, sram are saying there was an error in tolerances in the earlier brakes. All my brakes that are having issues were fine right through last summer, and as soon as it started to warm up in the last few weeks the issues began. There must be some swelling going on to trigger it. The brakes are all between 14 and 22 months old.
Sram australia have sent replacement levers for one set, the others were from CRC which I haven't posted yet.
My 2017 stumpy has guides, no problems yet but ordered a set of hope e4s so I don't have to wait for the guides to fuck up. I'll have to persevere with the guides on the other bikes, 4 sets of hope e4s is an expensive exercise.