km 3398.6

The broken thumbie makes for riding in the big ring a high torque experience. Grinding up hills, a replacement thumb shifter is on order.

Here is the breakdown for the parts at the 3000km service interval:

Part Retail Cost with sponsored discount

KMCZ51 6/7/8sp Chain $8.50 6.37

MF-HG22 6 sp freewheel 14.50 10.87

UN53 68x122 bottom bracket 24.00 18.00

Taxes (14%) 6.58 4.93

Total 53.58 40.17

Time took about one hour of professional mechanic's time (about $30) and some grease and chain oil. A marginal return considering replacement cost is $99, but worth it when the cartridge BB is upgraded, as it takes away the facing issue from those bearings. Also the drivetrain may have a longer life than the OEM spec. Stay tuned!



Net result is that it rides as well as a brand new Giant Sedona DX.