Compatible with SHIMANO and SRAM 10 speed groupset

Use it with a 4 tooth bigger chainring to get more top end without sacrificing your low gears.

Optimized gear combination and gear ratio

Shave bike weight off without sacrificing durability or reliability

Optimal balance of lightweight and durability

Aluminum body

Combination of aluminum and steel gears

Bigger chainring to expand your gear range both ways

Use it with the same size chainring to climb anything

Come with retail packaging!

Sunshine11 13 15 18 21 24 28 32 36 42t 500g

Sunshine 11 13 16 20 24 28 32 36 40 46t 540g

Bolany 11 13 16 20 24 28 32 36 42 50t 580g(red body and red cap)

Brand new. This item is exactly as pictured and does not include retailpackaging

Medium and short rear derailleur need a Cassette Adapter/ Goat link!