IS101 Bottom Set

Frame Diameter:
Fork Steerer:
IS101 Bottom set is suitable for frame with bottom 51.8mm head tube. The bearing is an angular contact bearing with a tight seal to protect the bearing and continue to provide excellent steering capability.

Purchase products on Mortop official website (, you can enjoy non-improper use damage within 2 years, free replacement service, calculated from the arrival date, other channels such as distributors, etc., must provide proof of transaction date, above You can fill out the warranty form to get service, and we will handle it for you as soon as possible.

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