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Ultegra R8100
Bar diameter: 19mm
Chainring BCD: 104mm
but still very lightweight at just 235g
A good quality 1x 10-speed budget groupset for Cyclocross
Croder Gearmate Single Chainring for SHIMANO 4-Arm Gearing:40T Ultegra R8100Croder Gearmate Single Chainring for Shimano 4 Arm 110bcd, includes 1 chainring suitable for Croder Spirit 4 arm spider. WEIGHT 70. 5g (38T) MATERIAL AL7075 T6 full CNC machining PROCESS Fully CNC Machined TEETH 34T, 36T, 38T, 40T, 42T COLOR Black CHAINS 10, 11 & 12sp (including Flat top) COMPATIBILITY Shimano 4 bolt 110bcd CRODER Gearmate Shimano 4 bolt 110bcd chainrings. With good looks, stiffness and light weight, made of AL7075 T6 aluminum
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