- 100 day return period
- Online since 1998
- Trusted Shop 4.89 / 5.00
Even more individualisation: the 4-arm Spider by Rotor
With the ALDHU 3D+ and the VEGAST, Rotor has developed a trend-setting road bike crank system that can be freely configured and assembled without special tools and expertise. Thanks to the Direct Mount system, changing chainrings is a matter of minutes when using the One Piece combi chainring or single chainrings with Direct Mount Spider - a hex tool is all that is needed.
The Spider is suitable for holding the Rotor 4 Arm chainrings with a bolt circle diameter of 110 mm, and can only be used with the corresponding axle (standard version or offset version). For optimal positioning, oval chainrings can be adjusted in one-degree increments by means of the spider.
- Chainring Mount:
- 110 mm pitch circle, 4-arm asymmetrical
- innovative modular structure with different axle and chainring options
- OCP (Optimum Chainring Position) Mount Technology: The orientation of the oval chainrings can be finely adjusted through five mounting positions of the crank on the axle; numerous mounting options for spidering or chainrings
- easy chainring exchange with allen wrench
The exclusive Rotor technology OCP Mount stands for biomechanical optimisation of the pedal stroke when using Q-Rings. OCP Mount allows you to adjust the alignment of the chainring on the crank in 1 degree increments. The shape of the axle allows independent positioning of the crank arms and Spider or Direct Mount chainring, changing the relative position so that the optimum setting can be found for the user.
The multiple positioning possibilities of OCP Mount allow a super fine adjustment of the OCP (Optimum Chainring Position). This makes it possible to prevent or eliminate knee problems, to optimise the effectiveness of the crank rotation or to improve the traction on the MTB and cyclocross.
Position your chainrings with Rotor's OCP Mount System to get the most out of your ride.
- 1 x Rotor BCD 110 x 4 spider
- 4 x chainring bolts
- not incl. crank arms