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Post by Killswitch73 on Jun 7, 2015 14:30:07 GMT
I have the new XTR 11 Speed M9000 , cassette , Rear mech and Shifter . i have tried everything to get gears running and shfiting perfectly and they do ..they never skip but god damn everytime i shift into the 38 or 40th tooth (biggest sprocket) it makes a very loud snapping noise and even when changing down too its very clunky .. its only smooth shifting on the first 6 or 7 sprockets and down the last 6 or 7 . but after that its very clunky and snappy sounding and dont sound healthy . i have stripped it all and cleaned cassette and cassette is fine (about 150 miles use if that ) .
my missis mondeaker has 3x10 x9 rear mech and x7 shifter and its buttery smooth compared to my XTR 11 speed . something cant be right .
Anybody have any ideas that they know of .
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Post by timbo on Jun 7, 2015 14:50:12 GMT
B tension screw?
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Post by Killswitch73 on Jun 7, 2015 17:41:19 GMT
Thanks Timbo it has helped a great deal .still not buttery smooth but this could be the chain as it might be a link to long and it also helped easing off the clutch tension screw . Will post a pic of the chain on top sprocket .
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Post by notsarkyadam on Jun 7, 2015 17:55:24 GMT
Be reet when you've put some miles on it!
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Post by lowcogger on Jun 7, 2015 18:10:52 GMT
as tim says,check B screw tension to make sure inside of mech cage is not fouling the largest sprocket on cassette.
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Post by Killswitch73 on Jun 8, 2015 0:04:26 GMT
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Post by richardm on Jun 8, 2015 4:21:37 GMT
more b tension, and for me another link needed in the chain, it seems to short as rear mesh is forward without any travel on rear suspension
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Post by Killswitch73 on Jun 8, 2015 13:33:07 GMT
more b tension, and for me another link needed in the chain, it seems to short as rear mesh is forward without any travel on rear suspension damn thats how the chain came as i didn't take any links out .. 114 links i think it has . this is how it is now after timbo told me about the b tention screw and its a lot better and shifts good but on a trail riding up rock garden it dont feel smooth . |
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Post by timbo on Jun 8, 2015 14:51:36 GMT
Chain looks about right to me, maybe a smidgen on the long side. Take a photo of the position of your top jockey wheel when its in its top cog.
Other things that spring to mind, mech mounting bolt tight, mech hanger bolts tight, mech hanger straight, cassette tightened up properly on the hub (wobbly larger cogs?), cassette bearings got any slop (cassette wobbling as one), wheel tightened up properly, all your cables seated properly in their guides, any cable kinks inside or outside the inner, stiff links in the chain?
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Post by Killswitch73 on Jun 8, 2015 23:38:59 GMT
will have another good look in the morning as done mabie forest again today and its only when in the top cog if i pedal back on the crank the chain drops down a gear .. very annoying and i can remember i did take 2 links out of the chain when i fit it so maybe needs more b screw tension . nothing wobbly .its defo something to do with the top jockey nearest to the largest cog . will take a pic in the morning . might even buy a better chain .
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Post by Killswitch73 on Jun 9, 2015 20:36:21 GMT
Chain looks about right to me, maybe a smidgen on the long side. Take a photo of the position of your top jockey wheel when its in its top cog. Other things that spring to mind, mech mounting bolt tight, mech hanger bolts tight, mech hanger straight, cassette tightened up properly on the hub (wobbly larger cogs?), cassette bearings got any slop (cassette wobbling as one), wheel tightened up properly, all your cables seated properly in their guides, any cable kinks inside or outside the inner, stiff links in the chain? photos as timbo as asked for . i have now shortened the chain by a link and its shifting better and less of a clunk . .its still clunks and still not buttery smooth as its supposed to be . i have switched from the wax lube and now using finishline wet lube and it shift way better . i still have the problem when sometime not all the time that when in 1st gear going up a big techy hill and i struggle and then stop and then spin te crank backwards to get my pedals inline the chain the drops into 2nd . i have stripped everything took cable out . took out the hanger to see if its bent and all good and all torque is fine . now the snapping noise is only when im changing gear when there is pressure on the bike when going up steep sections . if this is buttery smooth then XTR can do 1 .my missis x9 groupset on her mondraker is smoother . Chainline       |
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