External Bottom Bracket (BB1)

External Bottom Bracket (BB1)

Regular price
/
Color
Spindle specifictions
Bearing specifications

The MORTOP Bottom Brackets guarantee you the lowest friction, optimised power transfer, and longest product lifetime, helping you to save watts or ride faster. The combined with the smoothness of the balls results in virtually no wear on the bearing.

we are now applying our expertise and products to the world of cycling - no other performance component manufacturer comes close. It is the ability to use the World’s best race teams and riders to constantly develop and improve our products that gives us the winning edge over our competitors.

Mortop`s Bottom Brackets change the locking method to internal for ISIS SYSTEM TOOL in both ends. it is not only lighter and thinner but also to solve the problem of easily wearing appearance.

Material: CNC Durable Forged Alloy 7075 cups
Spindle specifictions:

Shimano: bearings for 24mm spindle

Sram: bearings for 24/22mm spindle

Shell DIA: BSA1.37"
Shell width: 68mm-73mm
Weight:  75 grams


Shimano

Cartridge

2 bottom bracket twist cups

2 Mortop cartridge angular contact bearings for 24mm spindle

2 dust alloy covers 

2 1mm ∮24mm spacer 

2 5mm ∮24mm spacer 

3 2.5mm spacer 

2 0.3mm spacer

2 0.5mm spacer

2 1mm spacer 

5ml syringe of Nano lubricant

Shimano

Ceramic

2 bottom bracket twist cups

2 Mortop ceramic angular contact bearings for 24mm spindle

2 dust alloy covers 

2 1mm ∮24mm spacer 

2 5mm ∮24mm spacer 

3 2.5mm spacer 

2 0.3mm spacer

2 0.5mm spacer

2 1mm spacer 

5ml syringe of Nano lubricant

Sram

Cartridge

2 bottom bracket twist cups

2 Mortop cartridge angular contact bearings for 24/22mm spindle

2 dust alloy covers 

2 1mm ∮24mm spacer 

2 5mm ∮24mm spacer 

3 2.5mm spacer 

2 0.3mm spacer

2 0.5mm spacer

2 1mm spacer 

5ml syringe of Nano lubricant

2 Spring Spacer

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

Sram

Ceramic

2 bottom bracket twist cups

2 Mortop ceramic angular contact bearings for 24/22mm spindle

2 dust alloy covers 

2 1mm ∮24mm spacer 

2 5mm ∮24mm spacer 

3 2.5mm spacer 

2 0.3mm spacer

2 0.5mm spacer

2 1mm spacer 

5ml syringe of Nano lubricant

2 Spring Spacer

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