|
Item for Sale
|
Rotor MTB QX2 ring XC2 BCD 110mm x 5
Bolt Chainring Black (38T,39T,40T) The outward appearance or graphic might have some differences with our listed because different years of the production. However, their specifications are same, so we will ship it randomly.
|
|
Description
|
Shred”
– you don´t usually take advice from the office recycling bin but your
favorite trail begs to be ridden so you obey.
QX2
chainrings for your double 110/74BCD cranks feature subtle 10% ovality that
can be dialed in to take advantage of the most-powerful part of your pedal
stroke to give you faster acceleration and better traction on whatever
terrain you thrust under your wheels.
QX2
rings give you 3 Optimum Chainring Positions (OCP), which can be adjusted
to take advantage of your pedal stroke's most-productive zone to propel you
forward on each rotation.
Q-RING ADVANTAGES:
Many professional
riders have successfully used oval chainrings for years and know about
Q-Rings’ advantages. Here you will find information about ergonomics, the
science behind oval chainrings, and you will learn about some of the pros’
experiences from a road, triathlon or MTB perspective.
- Q-Rings
improve your performance, minimize fatigue and reduce stress on the knees
- Q-Rings
virtually decrease the gear ratio in the dead spot and increase the gear
ratio in the power phase where the rider exerts the most force
- Q-Rings
are available for nearly all standard cranks on the market
- Q-Rings
are quick and easy to mount with up to 5 different Optimum Chainring
Positions (OCP)
- Q-Rings
have already played a part in many Tour de France, Giro d’Italia, Vuelta a
España, Ironman, Challenge and UCI MTB World Cup victories
- Q-Rings
are CNC-machined and produced exclusively in Spain
SOUNDS FAMILIAR, ISN’T THAT LIKE
BIOPACE?
There are
significant differences between Q-Rings and Shimano’s Biopace, which was
well-known in the 1980’s/1990’s. ROTOR Q-Rings simulate a higher gear at
the point of maximum force, i.e. the most productive part of the pedal
stroke, and therefore leverage the power phase (Fig.1). In the pedal
rotation’s dead spot (Fig.2), where we exert the least force, a simulated
smaller gear enables us to more easily overcome this dead spot. With
Biopace, it was exactly the opposite. In addition, Q-Rings feature up to 5
Optimum Chainring Positions (OCP) that can be oriented around a cyclist’s
distinct pedaling characteristics.
OCP- Optimum Chainring Position
Optimum Chainring Position (OCP) represents the different setup positions
that ROTOR Q-Rings offer to fit a rider’s distinct pedaling style. Q-Rings
feature up to 5 OCP´s, with OCP 3 as an intermediate starting point, all to
optimize your pedaling style. You can determine your OCP if you know your
Optimum Chainring Angle (OCA), which can be found by conducting a TORQUE
360 pedal analysis via ROTOR´s 2INpower and INpower User Software.
|
|
Specifications
|
Brand: Rotor
Tooth
Available : 38T, 39T, 40T
Color:
Black
BCD:
110mm
Bolt:
5
Material:
CNC machined 7075 T-6 Aluminium
Compatibility:
9-/10-/11-speed
Net
Weight: 64g (39T)
Made
in Spain
|