Against gravity

Made by Mortop for light weight, it is made of aluminum alloy and cooperated with Mortop quick release bearing to create the pinnacle of lightweight BB.

Full sprint

Angular contact is used to increase the lateral track area and disperse the axial force. extend orbit life. The tolerance is smaller and smoother, and there are stainless steel ball and ceramic ball to choose.

Ride boldly

Two-point contact seal ring and nano-lubricating oil, high waterproof and low resistance. Conquer all weather and terrain from now on.


Spindle Specifictions:
Bearing Specifications:
BB8624 with quick release bearing is suitable for Shimano & Sram. It can be installed on a frame with a diameter of 41mm and a width of 86/92mm.

Material: alloy 6061 cups

Spindle specifictions: Shimano Bearings for 24mm spindle / Sram Bearings for 24/22mm spindle

Shell DIA: 41mm

Shell width: 86mm- 92mm


2 Bottom Bracket cups
2 Mortop Bearings
2 Dust alloy covers
2 1mm Ø24mm spacer
2 5mm Ø24mm spacer
5ml syringe of Nano lubricant
2 Spring spacer (SRAM specification accessories)

Specifically designed for installing 22mm / 24mm spindle diameter cranks (SRAM / Truvativ GXP) the frames without the need for any adapters.

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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