What size rotor do I need?

What size rotor do I need?

Here are some general rules of thumb: 160mm rotors for cross-country (possibly with a 180mm front rotor for heavier riders and greater versatility); 180mm front and 160mm rear rotors for 5in and 6in full suspension bikes; 200mm rotors for gravity riding.

What should happen to a brake rotor that is below the minimum specified thickness?

Risk: Continued operation at or below Rotor Minimum Thickness can lead to Brake system failure. As the rotor reaches its minimum thickness, the braking distance increases, sometimes up to 4 meters. A brake system is designed to take kinetic energy and transfer it into heat energy.

What is the minimum thickness for brake discs?

37 mm

Is there a legal limit on brake discs?

The disc wear limit isn’t legally binding in any way. If the brakes aren’t capable of passing a VOSA/MOT rolling road brake test, then they are considered fine as far as the law goes. That’s not to say they won’t be more likely to warp, judder, fade or make a horrible noise when in use.

How long do ultegra disc brakes last?

Registered. They’ll last anywhere from 100 miles to 1250 miles depending on riding conditions and quality of pad.

How much heavier are disc brakes?

That puts the difference between these two builds at 480 grams, or roughly 1.1 pounds. That’s the most realistic estimate we’ve been able to come up with and it’s the one we use when talking with customers, “good rule of thumb, disc brakes will be about a pound heavier than rim brakes.”

Can I use any rotor with disc brakes?

Disc brakes can be fitted to any mountain bike so long as the bike is equipped with two things: Hubs that have the fittings for a disc rotor. Frame and forks which have mountings for disc calipers.

Are front rotors bigger than rear?

The front brakes are larger than the rear because when you brake, the vehicles weight shifts towards the front. (the reason the nose ‘dives’) Causing the front brake discs to absorb more heat than the rear. The larger front brake discs can absorb and dissipate heat more efficiently than the smaller rear discs.