THM Carbones Clavicula MTB M3 LK 120 | 80. Tune chainrings
THMs super light and stiff crank for the mountain. It has a spider with the typical Sram bolt circle 120 | 80. For this dimension there chainrings in various shades of FRM, Tune, TA Specialites and Sram.
The M³, unlike its predecessors, an axle made of aluminum and not carbon. The known high stiffness is however not affected. As with THM usual, there are suitable internal bearing for nearly all common bottom bracket systems. The spider can easily against another (eg 3-LK 104 | 64) are exchanged.
Warning: BOR and TUNE chainrings with 40 teeth (pitch circle 120 mm) may be incompatible due unfavorably positioned shift ramps with the Spider. The riveting of climbing aids touch the Spider.
THM provides to its cranks on different stock for the most common bottom bracket standards.
All internal bearings feature high-quality, double sealed ball bearings. For installation, a
THM tool needed, which is available in our shop.
TUNE chainrings are CNC machined from billet aluminum. For increased mileage they are blasted with glass beads, which hardens the surface and compacted. Subsequently, the chainrings are black anodized. The chainrings have 4 switching ramps and integrated switching support for a clean and fast gear changes.
Tune XX chainring bolts are available in various colors available. The screws for the large chainring are made of aluminum, for the small chainring made from titanium.
Material: aluminum, carbon, titanium
Crank arm: 170 / 172.5 / 175 mm
PCD: 120 | 80
Q: 167 mm
Rider weight limit: 110Kg (cyclist and luggage)
Finish: matte or glossy
Chainrings (recommended): 38 - 25 38-26 or 42-27
Weight: 504g (including crank chainrings 42-27 without bottom bracket.)
Delivery: crank, chainrings, chain ring bolts, optional internal bearing