Rotor QX2 Chainring (104x4) 5042-383

Rotor QX2 Chainring (104x4)


Rocksolid Guarantee

Shop with confidence. If it's not working out like you expected, you can return it.

Really. If it's not up to snuff after you use it (a couple times) you can still bring it back.

It lasts longer than 30 days, but not forever. We'll be fair about it. We're all members here.

Price match guarantee

Find a lower price within 30 days? We’ll match it.

If you see a lower price for this exact item advertised online, in print or in a store, give us a call at 1 (888) 847-0770.

If it’s identical, brand-new, in stock, and sold and shipped by a Canadian-based retailer, we’ll match that price.

See available Chain rings


Show Description

You could train endlessly to increase your performance, or you could just switch to Rotor’s oval QX2 Chainring. The unique 10% oval design results in the rider spending less time in the least powerful parts of the pedal stroke and more time in the powerful parts. Creating a smoother spin cycle that works with your legs natural strengths and weaknesses can increase an avid cyclist’s performance by as much as 4 seconds per km.

  • Made from 7075 CNC aluminum.
  • 10% ovalization increases efficiency and performance.
  • Works for all 9, 10 and 11 speed groups.
  • Some cranks require specific Q Rings.

Tech specs

Show Tech specs
Ideal for Road cycling
Bolt circle diameter

Bolt circle diameter (BCD): the diameter of an imaginary circle that intersects the centre of each chainring bolt.

Attachment 4-bolts
Material 7075-T6 aluminum
  • 9-speed
  • 10-speed
  • 11-speed
Made in USA