Shimano Ultegra 6600 Bottom Bracket Cup Set
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Shimano Ultegra 6600 Bottom Bracket Cup Set
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Cycling
Shimano
Shimano Ultegra 6600 Bottom Bracket Cup Set: The bottom bracket bearings for the HollowTech II FC6600 crankset Minimal bearing interface gives superbly smooth rolling Required for installation of FC7800 chainset, with a choice of English or Italian thread BB cups Set includes left and right hand cups, inner cover and inner O-rings Sealed cups keep out dirt and water Maintenance free
£26.99
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Shimano Ultegra 6600 Hollowtech Ii Double Chainset Oe Cycling Shimano Shimano Ultegra 6600 Hollowtech II Double Chainset OE: Chainset includes Bottom Bracket. The Ultegra crankset utilizes the same technology as found in the Dura-Ace version, but at a fraction of the cost. The new Ultegra Hollowtech II chainset uses the same two-piece design to maximize its stiffness for the optimum power transfer and minimal weight. A hollow cro-moly spindle is press-fitted into the driveside of the Hollowtech II crankarm, this spindle is what rotates in the new external cups, with little or no flex or loss of power. The bottom bracket bearings are now located outside of the bottom bracket shell to accomodate the oversized axle. The bearings are wider apart in comparison to the 9-speed's, this provides more axle support, yet again improving the power transfer. Amazingly though the Q-factor of the new crankset is unchanged from the 9-speed version. 53/39 x 170mm cranks Review this product |
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