What's the difference between a bicycle knife ring and a flat ring?

A: it's obvious that the one with the higher rim is the cutter ring, and the one with the lower rim is the flat ring, which is 88mm high. That is, the cutter ring, which is only 17mm high, is the flat ring

How about installing the cutting ring on the mountain bike?

A: if you run in the city, you don't need to have a high intensity. If you can't get on the knife circle, you like the car that I run in the city instead of using the knife circle of 30-40 yuan. The maintenance is convenient and doesn't need to be adjusted

The size of bicycle knife ring

Answer: the outer diameter of the road car's cutter ring is the same. The thicker the inertia of the cutter, the better the speed, the easier it is to keep it, but the slower the speed is, the bigger the cutter is suitable for the flat road cutter, and the smaller the cutter is suitable for climbing