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:: Description |
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New XTR features the Hollowtech IIŽ crankset that integrates the bottom bracket and crankset into a single unit. This design reduces the number of parts, significantly cuts down weight, and increases rigidity. The crank is 80-grams lighter than the M950 series crank and bottom bracket combination. The new Hollowtech IIŽ design allows the bottom bracket bearings to be spaced more widely. This dramatically changes the loads on the bearings to increase rigidity and bearing service life. Compact chainring gearing of 44-32-22 (24T option) enhances pedaling efficiency while the SG-X chainrings deliver smoother, quicker and more precise shifting. Only one chainline of 50mm and one bottom bracket specification is needed for 68 or 73mm shells. The only specification to decide is crankarm length.
Both cosmetically and mechanically, the new XTR rear derailleur has been re-designed completely. The biggest benefit comes in the form of the most linear action spring design ever made by Shimano. The result is consistent effort throughout the entire range of gears. The derailleur also features the ""Low-Normal"" return spring that enhances inward shifts, especially in varying severe terrain, and lends to incredibly intuitive operation when combined with the XTR Dual Control shifters. The outer link now embraces the pulley body to increase pivot joint rigidity. It not only provides more positive shifting action, and more durability, it looks good too! ""Snap-ring"" retainers ensure that the pulley bolts remain tight. An optional rubber bumper on top of the outer link reduces noise and prevents chainstay damage caused by some contemporary full suspension frame designs. A large easy-to-grip cable adjuster barrel on the shift lever allows cable adjustment on the run. Finally, an additional 10% reduction in shift effort is achieved with the new SIS-SP41 casing that is fully greased throughout its length with a silicon-based grease.
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| :: Specifications |
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| EST. Price : |
$450 |
| weight : | 787.0g |
| colors : |
Polished Gray Anodized |
| materials : |
* Crank Arms Forged: ultra duraluminum / hollow type
* Chainring: 7075 aluminum
* Chainring Bolts & Nuts: 7075 Aluminum
* Chain Guard: no |
| teeth : | 44-32-22T |
| arm : | 170 mm |
| BB : | M960 BB/included |
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| :: Manufacturer Information |
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