42T GC Cog for Shimano Black:(1) Black Integrated Seatclamp:

Integrated Seatclamp:

Reach for your gear and feel the FlexTop stretch across your back

http://mountainbikeradio

"Bring on the Good Times and Tan Lines in your Sea Lettuce Hawaiian Jersey

the uses for these rings has expanded beyond Cyclocross to commuting

42T GC Cog for Shimano Black:(1) Black Integrated Seatclamp:42T GC Cog for Shimano The GC42 cassette cog is so big that when machining the first batch, the machinist thought he made a mistake! The GC line of cassette extender cogs allow you to modify your 10 speed cassette into a wide range cassette. To achieve the optimal shifting, the GCs are optimized for Shimano or SRAM cassette. Compatibility: Compatible with Shimano 10 speed cassettes listed on the GC tech page Compatible with all 10 speed chains Note