Friday, July 18, 2014

Damaged Bottom Bracket

I normally test pedal my bike before preparing to leave.   And, I noticed that my 29er was not smooth to pedal.

When I checked, I thought something's wrong with the bottom bracket, which  is a Shimano SM-BB70 and part of the XT crankset I bought second hand and installed more than two years ago.  It hasn't been serviced yet since then.

Meantime, I parked my 29er back and used my 69er for my ride.  That's the beauty of having more than one bike.

When I returned home, I removed the damaged BB and replaced it with my spare BB.

I dismantled it and tried to fix it but unsuccessful.   The bearings has seized up already.

Thus, I need to buy another one as spare.

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