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Tune Mag 170 Rear Road Hub

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Product Description

The MAG 170 is Tune's latest iteration of their lightweight rear road hub design. When compared to its predecessor, the MAG 180, several key improvements become apparent. The most dramatic change is the move from a 15 mm axle to a 17 mm aluminum axle. This increase in diameter helps to save weight while increasing the stiffness of the hub assembly. In order to accommodate the larger axle size, Tune had to redesign the rest of the hub. The hub shell itself has slightly increased in diameter, along with the drive mechanism. And in redesigning the hub shell, Tune opted to improve the flange spacing for better spoke bracing angles, ultimately leading to stronger, laterally stiffer wheel builds.

Internally, each bearing has been effectively downsized to save weight and to fit the larger axle. Tune has also opted to abandon its XOT double bearing and preload mechanism, which greatly simplifies axle removal and hub overhaul.

Tune MAG 170 hubs are designed and manufactured with pride in Germany.

*Tune's Shimano freehub is now compatible with 11 speed Sram and Shimano cassettes. Additionally, they are reverse compatible with 8/9/10 speed cassettes when installed with a 1.8mm spacer (not included). Campagnolo freehubs are directly compatible with both 10 and 11 speed Campagnolo cassettes. An 11 speed Shimano freehub kit is available to update older Mag 170 hubs to accept 11 speed cassettes.


We recommend that wheels equipped with Tune hubs be assembled by an experienced wheel builder. We are happy to provide this service, and can provide helpful suggestions in rim and spoke selections. Please contact us directly or submit a form for a custom wheelbuild.

Product Specifications

Weight 170 grams
Bearings 6803 (1), 6903 (1), 6803 (2)
Axle Diameter 17 mm
Available Drillings 24, 28 hole
Hub Shell Material 7075 aluminum
Use road, cyclocross
Freehub Cassette Compatibility
Shimano Shimano 8/9/10* and 11
Sram 10* and 11
Campagnolo Campagnolo 10 and 11
Wheel Building Dimensions Shimano
Left Flange Diameter 41 mm
Right Flange Diameter 54 mm
Left Flange to Center 35.5 mm
Right Flange to Center 17 mm
Wheel Building Dimensions Campy
Left Flange Diameter 41 mm
Right Flange Diameter 54 mm
Left Flange to Center 36.9 mm
Right Flange to Center 15.6 mm
Product Manuals

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