Thursday, April 13, 2006

More '07 XTR - Press Release

I just received the following:

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April 13th, 2006

Irvine, CA: Shimano releases product information for more components of the all new 2007 Shimano XTR line.


HB-M976: 20mm Thru Axle XTR hub

Shimano introduces its first 20mm thru axle XTR hub for all riders seeking the increased stiffness of a thru axle suspension fork:

· Lightweight: Target weight is 220g

· 20mm x 110 O.L.D.

· Angular Contact Bearings:

o A serviceable sealed bearing assembly that handles both vertical and lateral forces exerted by the wheel.

· Compatible with the standard sized Center Lock rotors:

o The new rotor lock ring is tightened with the TL-FC32 which is also used to tighten Hollowtech II bottom brackets. By moving the serrations to the outside of the lock ring, the inner diameter can be enlarged to allow the use of a 20mm axle.



FH-M975/M970: Rear Hubs

The new XTR rear hubs offer improved performance any rider will appreciate. A quicker engaging freehub body, improved durability and increased rigidity are included in a disc & non-disc XTR rear hub:

· Titanium Freehub body:

o Quicker engaging: With 36 engagement points, pawl engagement is 125% quicker than current XTR. The new freehub body has a 10° maximum engagement angle for the ultimate combination of low friction and quick acceleration.

· Improved seal design:

o Based on Dura-Ace’s improved seal design & internal grease sleeve, durability is improved while service intervals are extended.

· 14mm axles:

o The 7075-grade alloy axle improves rigidity by 40%. The new axle design also makes serviceability easier through the use of one cone wrench and a 5mm Allen wrench.

· Angular Contact Bearings:

o A serviceable sealed bearing assembly that handles both vertical and lateral forces exerted by the wheel.



HB-M975/M970: Front Hubs

Offered in both disc & non-disc versions, the redesigned XTR hubs offer improved durability & increased rigidity:

· Improved seal design:

o Based on Dura-Ace’s improved seal design & internal grease sleeve, durability is improved while service intervals are extended.

· 14mm axles:

· The 7075-grade alloy axle improves rigidity by 40%. The new axle design also makes serviceability easier through the use of one cone wrench and a 5mm Allen wrench.

· Angular Contact Bearings:

o A serviceable sealed bearing assembly that handles both vertical and lateral forces exerted by the wheel.



CS-M970: 9-Speed Cassette

A three piece aluminum carrier and 4 titanium cogs make the new CS-M970 Shimano’s lightest 9-speed mountain bike cassette ever at 224g.

· 3-Piece Alloy Carrier:

o Doubles the stiffness of the largest cogs while reducing weight.

· 4 Titanium Sprockets:

o The top 4 cogs are titanium which reduce weight and extend durability.

· Cassette Combinations:

o 11-32 / 11-34 / 12-34





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I think that the newest bit of news, at least something that I haven't heard before, is the change in the lockring for the 20mm hub. Using the wrench from the outboard bearings is a good idea. The rest, 20mm hub, 7075 axles, Ti freehub body, have been mentioned elsewhere -- See HERE and HERE.

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