Bottom Bracket Wheels Manufacturing

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

Wheels Enduro ABEC3 ball bearings:

The Wheels Enduro ABEC3 ball bearings offer very high precision. The balls are twice as round as standard industrial bearings, with a roundness tolerance of 10 / 1,000,000. The ball material, 52100 high-carbon chromium alloy, is extremely robust and specially hardened. It is also polished to a high gloss. Equipped with double silicone seals, double lip seals and heavy-duty grease, these bearings guarantee excellent durability.

BSA threaded bottom bracket shells

The BSA bottom bracket shells have a width of 68–73 mm and a 1.370 × 24 TPI thread, with an outer diameter of 34.8 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 delivery.

Shimano Hollowtech II 24 mm MTB crank axle:

The Shimano Hollowtech II crankset system has a solid 24 mm axle. The MTB cranksets have a 120 mm long crankset axle. The DH Saint and Zee cranks for 83 and 100 mm installation widths have longer axles and only fit frames with correspondingly wider bottom bracket shells. The respective bottom brackets are compatible with one another.

FSA MegaExo 24 mm / Road - MTB:

The FSA MegaExo crankset system has a solid 24 mm axle, in line with the Shimano Hollowtech II system. However, some models feature a 24.7 mm axle. These bottom brackets are not compatible with those models.

Race Face X-Type crank axle 24 mm:

The Race Face X-Type crankset has a 24 mm through-axle, just like the Shimano Hollowtech II cranks. The X-Type MTB cranks for 73 mm and 68 mm bottom bracket shells have an axle length of 120 mm. The cranks for 83 mm bottom bracket shells have an axle length of 136 mm. The respective bottom brackets are compatible with one another.

Wheels Manufacturing bottom bracket technology:

• Suitable for BSA bottom bracket shells
• Cage width 68/73 mm
• For 24 mm crank axles
• Applications: Cross Country, All Mountain, Enduro
• 7075 aluminium bearing cups, forged and CNC-machined.
• ABEC3 Enduro bearings
• Weight 125 grams
• Includes washers for 73 mm installation

Wheels bottom bracket compatibility:

Compatible with Shimano Hollowtech II, FSA Megaexo and Race Face X Type cranksets with a solid 24 mm axle. MTB and road bike. For installation, use a Hollowtech II-compatible bottom bracket tool 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