Q: Why is there an Integrated Spindle Protector option? A: Some frames have extremely restrictive bottom bracket shells that get so narrow in the middle that there is barely clearance for a 30mm spindle. A frame of this type will NOT admit our integrated spindle protector. If the frame is wide open inside, chose the "With" option. If your frame narrows inside, chose the "Without" option.
ATTENTION: Always "chase and face" your frame bottom bracket shell before installation. Threads must be absolutely clean and clear of debris. Frame bottom bracket shell must be faced to 73mm or 100mm depending on frame BB shell width.
Fits ALL 16-notch 44mm OD cups.
Compatible with ALL BBInfinite Threaded Bottom Brackets: Shimano, Gxp, 30mm, DUB, and M30.
Fits 16-notch rotor disc lockrings
Made in the USA
ABOUT OUR BEARING CHOICES:
Ceramitech Bearings: Our Si3n4 hybrid ceramic bearings feature ultra-spherical silicon nitride balls matched to SAE 52100 chrome steel bearing races that have been processed with additional heat treatment and polishing steps. The result is a hybrid-ceramic bearing that lasts longer than any steel bearing with spin performance no steel bearing can rival. We’re so confident in the durability of our Ceramitech bearings that we back them with a Lifetime Bearing Exchange warranty. These bearings feature mid-contact seals for extreme performance and endurance. Each bearing comes lubricated with Kluber Isoflex Topas NB52. Lifetime warranty.
ABEC-7 Steel Bearings: Crafted from SAE 52100 chrome steel, our BBInfinite ABEC-7 (ISO 492, Class 4) bearings are so buttery that you’d have to buy our Ceramitechs to find anything better. These bearings feature mid-contact seals for extreme performance and endurance. Each bearing comes lubricated with Kluber or Koyo. 1-Year Bearing Exchange Warranty.
SRAM DUB Compatibility Chart
BB Standard | Crank | SRAM Part# | BBI Upgrade |
BSA MTB 73 English Threaded |
DUB MTB | 00.6418.015.000 00.6418.015.008 |
ABEC-7 Ceramitech WS2 |
BSA MTB 73 English Threaded |
DUB MTB WIDE | 00.6418.015.005 |
ABEC-7 Ceramitech WS2 |
BSA MTB 73 English Threaded |
DUB MTB SB+ | 00.6418.019.000 |
ABEC-7 Ceramitech WS2 |
BSA MTB 73 English Threaded |
DUB MTB Ai | 00.6418.031.001 |
ABEC-7 Ceramitech WS2 |
BSA MTB FAT English Threaded |
DUB MTB | 00.6418.015.001 00.6418.015.008 |
ABEC-7 Ceramitech WS2 |
Weight:
WS2: 74g | CERAMITECH: 76g | ABEC-7 SS: 79g
Frame Width: BSA 73mm English
Frame Width: BSA 100mm English
Frame Diameter: 1.37 x 24tpi English
Spindle Diameter: DUB
Bearing Size: 4030