Bottom Bracket Wheels Manufacturing

The classic BSA bottom brackets from Wheels Manufacturing allow Sam and Truvativ MTB cranks with a 24/22 mm axle to be fitted to frames with BSA bottom bracket shells measuring 68 and 73 mm in width.

Wheels Enduro ABEC5 angular contact ball bearings:

The Wheels Enduro ABEC5 angular contact ball bearings are specially designed for use in hubs and bottom brackets. Whereas in standard radial bearings only 3 or 4 balls are loaded simultaneously, in angular contact ball bearings all balls are loaded evenly. This is why this type of bearing is also known as a full-contact bearing. This distributes the applied force across the entire bearing surface, reducing friction and wear. The balls in these Enduro bearings are manufactured with extreme precision, with a tolerance of just 10/1,000,000 – twice as precise as standard industrial bearings. Fitted with double silicone seals, double lip seals and high-load grease, these bearings guarantee excellent durability.

SRAM GXP axle system:

The SRAM GXP crankset system features different axle diameters. The outer diameter of the axle on the drive side is 24 mm and 22 mm on the left side. GXP-compatible bottom brackets are required for this.

BSA threaded bottom bracket shells

The BSA bottom bracket shells have a width of 68–73 mm and a thread of 1.370 × 24 TPI, with an outer diameter of 33.6–33.9 mm, into which the bearing cups are screwed. Both bearing cups are screwed in the direction of travel. Adjustment to the different shell widths is achieved using the shims included in the scope of delivery.

Wheels Manufacturing bottom bracket technology:

• Suitable for BSA bottom bracket shells
• Housing width 68/73 mm
• For 24/22 mm crank axles, Sram GXP only
• Applications: Cross Country, All Mountain, Enduro
• 7075 aluminium bearing cups, forged and CNC-machined.
• ABEC5 Enduro angular contact ball bearings
• Weight 125 grams
• Includes washers for 68 mm installation

Wheels Outboard bottom bracket compatibility:

Compatible with Sram GXP cranksets with a 24 mm axle, reduced to 22 mm on the non-drive side, MTB. A Hollowtech II/GXP-compatible bottom bracket tool is required for installation, such as the TL-FC32 or TL-FC33

Herstellerinformation: WHEELS MANUFACTURING, 475 Arthur Ave. #1, 80027 Louisville, Colorado, United States, https://wheelsmfg.com | EU contact: Tomeikerweg 31, 6161RB Geleen, Netherlands, https://tehava.com