It is satisfactory to say clearly. Lol! In the past, "Dullness" was seen from about 50 to 60 Km / h, but it is smooth after replacement. It will also accelerate from over 65Km / h to over 80Km / h at once. I will buy one more as a spare.
The holes (3 places) into which the ramp plate mounting bolts are inserted were not open and could not be installed. Even if the selling price is cheap, it is not cheapest if it costs such wasteful work because of bad products. As long as the quality is kept and cheap, it is meaningless.
It was a repair part, but when it was installed the inside was a high speed pulley (lol) Jumping and jumping will continue until about 70 kilometers past. The maximum speed is drastically increased. It seems better to lighten the weight roller considerably than normal. Even 7.5 g × 6 acceleration is a dull feeling. Good shopping was made in surprising place.