Rotor's Rex crankset collection for mountain biking, QX1 rings and Spiders for SRAM and Specialized, as well as the new for 2015 QXC1 for cyclocross are highlighted.

Video: Rex MTB cranks, QX1 rings and QXC1 Spider

Arthur Espos from Rotor shows us the Rex cranksets and QX1 rings for mountain biking, as well as the new 2015 1x cyclocross Spider QCX1.

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The Rex crankset collection for mountain biking includes the Rex 1.1 and 2.1. The Rex 1.1 is a full CNC machined crankset weighing in at 489g. The Rex 2.1 has a forged CNC finish and weighs 511g.

QX1 rings are used for mounting on the Rex collection and feature Q-Ring ovalized chainring technology. The wide, narrow tooth profile eliminates the need for a chain guide. It is avaialable in 28-36 tooth sizes and the QX1 rings can also be mounted on other cranksets for SRAM and Specialized.

New for 2015 is the QCX1 cyclocross Spider. It is available in 38, 40, 42, 44 tooth sizes.

Gallery: Rotor Rex 1.1 and 2.1 cranks, QX1 rings and Spiders and QCX1 cyclocross Spider

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