TUNE crank BLACKFOOT MTB SL XX1 with Direct Mount Spiderless chainring
The lightest and stiffest crank simultaneously on the market. Tune makes his masterpiece.
The special feature: the new and hollow carbon crank is manufactured by a newly developed method Stick. The new method allows the carbon fibers optimally and forces oriented to arrange. This results in an extremely high STW value with the lowest use of material. Of course, assumes the new crank and the proven Smart Spindle System with 30 mm axle . So they almost all bottom bracket standards, covers bolt circle diameter e and chainring sizes from and perfectly complements Tunes Smart Foot crank aluminum.
Participants this set is the optimally matched to the performance and the weight Triebtreter SL chainring, which is available in various shades. The Direct Mount chainring is mounted directly on the crank arm, ensures a clean look, and is also light and stiff. The narrow-wide teeth that follow the X-Sync principle of SRAM, keep the chain without chain guide reliably in position.
We recommend a derailleur SRAM with Type 2 (2.1) technology or a Shimano Shadow rear derailleur +, which have a significantly higher voltage cage.
Material crank arms: Embroidered Carbon
Material Spider: aluminum
Material axle : aluminum
Crank lengths: 172.5 mm or 175.0 mm
bolt circle diameter diameter: Direct Mount chainring
chain line : ns.
Chainring: 28, 30, 32 or 34 teeth
Q: 165.5 mm
Compatibility Bottom bracket: BSA, BB30, Pressfit30, BB92, BBright Pressfit 84 mm (optional, not included)
Compatibility chains: ns.
Driver's weight: max 100 Kg
Weight: 390g (including crank shaft, Direct Mount chainring lockring.)
Scope of supply:. Incl crank shaft, spider, Crank Boots, Locknuts and lockring, chainring and without bottom bracket.
NOTE: The respective suitable for the frame bottom bracket must be ordered separately to the crank.
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