I keep having issues with my Hollowgram SL, but I still have hope to finally eliminate all of them. Right now a clicking noise is bothering me. Easiest way to reproduce it is to start pedalling out of the saddle while swinging my bike left and right. Each crank arm will produce a clicking noise when at the lowest point (consider the fact, that at this point I'm putting some force perpendicular to the crankarm). "Click" is not that loud - ie. riding in a traffic I wouldn't hear it. When riding alone with no other noises - then I can hear it. Other way to reproduce this noise it to catch seattube with my fingers, crankarm with my thumbs and squeze them together - crankarm will do "click". When I release crankarm it will click again (or sometimes only after putting some little force in direction opposite to squezing seattube and crankarm). Please notice this mostly eliminates pedals as a source of the noise as I can make my crank do the noise without putting any force to the pedals. This happens for both crankarms but I think I'm pretty sure that NDS will click a little bit louder and easier.
I found no play in my Hollowgram and I'm thinking all parts/interfaces here. At least no play that I can feel with my fingers. All bolts checked and re-tightened 2-3 times now.
Because of this I am looking at BB30 bearings as a source of the noise now. They are stock SRAM bearings (99% they're not ceramic) that were put on Flash Carbon 4 26'er in Europe with SRAM S1000 crank. This crank is looong gone, but I left the bearings as I thought they're durable and they were almost new.
Additional info is that I use a non-standard 128mm spindle with shaved lip and custom carbon spacers cut by hand to fit with a wave washer. And I do not have shims that go under (between) crank bolts and crankarms.
Anybody has any ideas about what may be a source of my clicking noise? I am looking for some tips/advices before I start to disassembly my Hollowgram again to change bearings.
BTW. 2 weeks ago I got a serious noise from my crank that got worse and worse within a single ride (I was hammering hard) and I ended up with broken spider (older type 94mm, 5bolts). How lucky I was to have a spare one? Not as much as you may think, because my LBS showed me that my spider fits my Hollowgram "too easy". They said that new spider shoul require some force to be seated on crank interface. It can be done by hand, but in my case it will seat with gravity force only and still has some play. Play was eliminated with loctite and proper lockring tightening, but anyone knows if this is a common/serious problem? Do I have a faulty Drive-side crankarm with bad spider interface?
Mtbr's 2016 Winter Biking GearReviews and Roundups
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