Table of Contents
What is Q factor in crank?
The Q Factor is the distance between the crank arms, measured from its outermost part. The point where the Q Factor is measured is right where the pedals are threaded and this measurement is what you see in the specifications of our ROTOR cranks.
What is Q factor in Shimano crank?
Q-factor is the distance between the outside face of each crank arm at the point where the pedal attaches, while stance width is the distance between the centre of one pedal to the centre of the other.
How do I reduce the Q factor on my bike?
The easiest way to reduce your Q factor is to install a shorter bottom bracket. There are many good, inexpensive square-taper BBs available in different lengths. You could pull the cranks off your present BB, measure them, and then order a shorter BB.
What is a large Q factor?
That larger Q-factor on a MTB is down to the wider tyres which forces the cranks further out for clearance and to maintain chain lines. As the Q Factor is set by the bike, the way to manipulate stance width is through the pedals and adjusting the cleat position on your cycling shoes. Adjust your cleat position.
How is Q-factor crank measured?
Q-factor is the distance between the outside of one crank arm and the other, measured not diagonally, but laterally, through the midline of the bottom bracket.
What Q-factor is boost?
Q-factor: The Q-factor of a pedal is the distance between the two cranks (156 mm, 158 mm, 166 mm, 168 mm). Front or rear axle: The cross-axle is used for fixing the wheel, this model fits into the frame and is tightened with a screw thread integrated into the frame or with a nut.
Does Q-factor make a difference?
Decreasing your Q-factor, or bringing your crank arms closer together, may make you more aerodynamic, but it won’t necessarily make you faster. You may lose a significant amount of power, or stop recruiting your glutes in such a narrow position.
What is a normal Q-factor road bike?
A typical bottom bracket width is 68mm for a road bike and 73mm for a MTB, and Q-factor tends to be around 150mm for a road bike and 170mm for a MTB. That larger Q-factor on a MTB is down to the wider tyres which forces the cranks further out for clearance and to maintain chain lines.
What is chainline on a bicycle?
Chainline is the distance between the centerline of your frame and the average centerline of your chainring(s). For 1X this is easy – If the center of your chainring teeth is 49mm from the centerline of your frame then your chainline is 49mm. It gets slightly more difficult if you have multiple front chainrings.
What is a normal Q-factor?
between 150mm and 170mm
Due to bottom bracket size, minimum chainline guidelines and chainstay length, there is an acceptable range for Q-factor, which is typically between 150mm and 170mm. Road bikes tend to have a narrower Q-factor (150mm), while mountain bikes tend to have a greater Q-factor (170mm).
What is standard Q-factor?
Sometimes known as ‘quack factor’ (a references to ducks and their waddle-y legs), Q Factor is the distance between the outside of one crank arm to the outside of the other.
Do I need boost cranks?
To guarantee the same drivetrain performance, Boost compatible cranks are absolutely necessary, or directly mount the Boost-specific chainring Spider. This offsets the drivetrain by 3mm to equalize the cassette’s movement. The cranks’ Q factor remains unaffected, as too do the axle and bearings.
What is a large Q-factor?
What is QQ factor/crank width?
Q Factor / Crank Width – The distance between the outside portion of each crank arm where the pedal attaches. The term was originally coined by Grant Petersen while he worked for Bridgestone Bicycles.
Is Q-factor too narrow on a road bike?
This is seemingly contradictory because the argument can be made that q-factor (unchangeable and determined by multiple factors such as bicycle and component manufacturers and the width of the chainstay) is, in many cases, too narrow on a road bike. Pedal Spindle Width – The distance from the outside of the crank arm to the center of the pedal.
What is a good Q-factor for a bike chain?
Due to bottom bracket size, minimum chainline guidelines and chainstay length, there is an acceptable range for Q-factor, which is typically between 150mm and 170mm. Road bikes tend to have a narrower Q-factor (150mm), while mountain bikes tend to have a greater Q-factor (170mm).
What is the acceptable range for Q-factor?
There is a limited range for Q-factor determined by both biomechanics and manufacturers. Due to bottom bracket size, minimum chainline guidelines and chainstay length, there is an acceptable range for Q-factor, which is typically between 150mm and 170mm.