WHEELS DUKE FURY STAR HD / URSUS XD31 IS

WHEELS DUKE FURY STAR HD / URSUS XD31 IS

The Fury Star HD is an aluminum rim designed for intensive use in Enduro and DH. Its internal width is 28.5mm. The rim is also compatible with E-bike.
These rims are used in the Enduro World Series and in the DH World Cup by the Team Commençal – Les Orres, the Team Scott SR-Suntour and by many other riders.

It is characterized by a lateral rigidity adapted to this use and offers an excellent strenght. The weight remains contained thanks to its profile and the Dynamal aluminum used.
This rim features a new modern lower and wider geometry with an asymmetric profile and hookless sidewalls.
A large tire and rim width reduces inflation pressures. This improves performance on dry ground, comfort, grip and limits the rolling effects of the tire under the rim in the downforce.
The rim holes are off-centered (offset), which allows the spoke brace angle to be further closed. Thus the rim is more stable and the lateral rigidity of the wheel is increased.
The tensions of the spokes between the two layers are more balanced, which guarantees better durability of the wheel.
The hookless walls (without hook) make it possible both to reinforce the rim and to reduce its weight. Anti-burp system: the tire bead is kept in position whatever its pressure, no risk of coming off the rim.

URSUS XD31 IS

URSUS Hubs are 100% Made in Italy. The CNC-machined 7075/T6 aerospace aluminium body with a tolerance 0.005 mm and classic design are the essential features that define thise outstanding hubs without compromise. Extraordinary easy maintenance without the use of special tools, just open by pulling the freewheel out. ABEC 5 ball bearings, protected by optimized sealing, ensure effective protection against external agents and high-quality smooth movement.

The ratchet and 3 pawls system of the freewheel with 30 POE with 12 degrees engagement allows for quick and simple engagement, maximizing power transfer and facilitating maintenance. All these makes this hub practically indestructible thanks also to the steel axle (optional at no extra cost). Choosing this hub is the ideal solution for unfailing and particularly reliable wheels, the most popular for training and racing.