Is your loose chain bugging you? Are you eccentric? Then read on…
Loose chain blues….
The Cure [not the band, sorry RL]:
1st: You put the lime in the coke… and make sure your eccentric bottom bracket’s [EBB] set screws are loose.
2nd: Rotate the EBB to adjust the chain tension, a spanner wrench is ideal, a Tri-Y or Allen wrench can be used. I like to rotate such that my EBB is at the lowest point that achieves proper chain tension. This give you effectively a lower BB height.
3rd: Tighten set screws, torque to manufactuer’s spec. This steps invloves a lot of voodoo! Some claim threadlocker (blue) is the only solution to ever loosening set screws, others chastise the thought of stuck bolts and proclaim anti-seize is the solution. I follow the “a dab ‘ll do ya” school of thought and use a touch of grease [ I also check my bike before every ride, Mtnbikeriders makes no claim that this is the perfect 100% solution and shall not be held responsible for personal injury, embarassment, weight loss, nausea, poor gas mileage or even death resulting from use of said Tech Tip].
A quick and akward video of today’s tech tip:
Ralei Really turned me off to EBBs, duw to this EBB, rather than the Bushnell/GF EBB, even withblue Loc-tite, I dound myself Constantly f’k’n with the skrews.
if SS/EBBs are your thing this is a great post 🙂
Great post David! Wow I can see it now…more videos by Sexy Sanderson
If you find that the bb is difficult to rotate use the crank for leverage against the hex wrench and turn with the pedal.