Overview “AC-2” = Dual Angular Contact. This describes the use of both angular contact bearings & angled bearing cups/hub bores used in the hub design. The AC-2 hub features revolutionary bearing installation & function never seen before in a bicycle hub. It has been designed from the ground up for ease of maintenance & optimal bearing performance. Here are a few key points of the AC-2 BMX Front Hub: -The AC-2 hubs use 20mm Angular Contact bearings with a wave spring pre-load. Bearings are pressed into tapered cups that mate with the angled bores machined into the hub shell. This design feature allows bearing/cup to be easily installed & removed from hub shell without any special tools. No more presses or hammers needed! Another attribute of the tapered bearing cup/angled hub shell bore design is how the bearings seat in the hub. The bearings/cups on each side of the hub shell are in perfect alignment with each other! This ensures superior bearing performance & less chance of premature wear. -Hub shell literally “floats” on the axle. The only force on the bearings is supplied by the wave spring (which delivers the appropriate bearing pre-load needed for angular contact bearings). Tightening of axle bolts has absolutely no affect on the bearings! -The bearings, wave spring, & shim (s) are secured on the axle by one retaining ring. The only tool used to assemble/disassemble the AC-2 hub is a pair of snap ring pliers! section Product Specs AXLE

Size: Females Bolts SPOKE HOLES: 36h BEARINGS: Steel 20mm angular contact WEIGHT: 245g / 8.64oz

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Overview “AC-2” = Dual Angular Contact. This describes the use of both angular contact bearings & angled bearing cups/hub bores used in the hub design. The AC-2 hub features revolutionary bearing installation & function never seen before in a bicycle hub. It has been designed from the ground up for ease of maintenance & optimal bearing performance. Here are a few key points of the AC-2 BMX Front Hub: -The AC-2 hubs use 20mm Angular Contact bearings with a wave spring pre-load. Bearings are pressed into tapered cups that mate with the angled bores machined into the hub shell. This design feature allows bearing/cup to be easily installed & removed from hub shell without any special tools. No more presses or hammers needed! Another attribute of the tapered bearing cup/angled hub shell bore design is how the bearings seat in the hub. The bearings/cups on each side of the hub shell are in perfect alignment with each other! This ensures superior bearing performance & less chance of premature wear. -Hub shell literally “floats” on the axle. The only force on the bearings is supplied by the wave spring (which delivers the appropriate bearing pre-load needed for angular contact bearings). Tightening of axle bolts has absolutely no affect on the bearings! -The bearings, wave spring, & shim (s) are secured on the axle by one retaining ring. The only tool used to assemble/disassemble the AC-2 hub is a pair of snap ring pliers! section Product Specs AXLE

Size: Females Bolts SPOKE HOLES: 36h BEARINGS: Steel 20mm angular contact WEIGHT: 245g / 8.64oz

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Overview “AC-2” = Dual Angular Contact. This describes the use of both angular contact bearings & angled bearing cups/hub bores used in the hub design. The AC-2 hub features revolutionary bearing installation & function never seen before in a bicycle hub. It has been designed from the ground up for ease of maintenance & optimal bearing performance. Here are a few key points of the AC-2 BMX Front Hub: -The AC-2 hubs use 20mm Angular Contact bearings with a wave spring pre-load. Bearings are pressed into tapered cups that mate with the angled bores machined into the hub shell. This design feature allows bearing/cup to be easily installed & removed from hub shell without any special tools. No more presses or hammers needed! Another attribute of the tapered bearing cup/angled hub shell bore design is how the bearings seat in the hub. The bearings/cups on each side of the hub shell are in perfect alignment with each other! This ensures superior bearing performance & less chance of premature wear. -Hub shell literally “floats” on the axle. The only force on the bearings is supplied by the wave spring (which delivers the appropriate bearing pre-load needed for angular contact bearings). Tightening of axle bolts has absolutely no affect on the bearings! -The bearings, wave spring, & shim (s) are secured on the axle by one retaining ring. The only tool used to assemble/disassemble the AC-2 hub is a pair of snap ring pliers! section Product Specs AXLE

Size: Females Bolts SPOKE HOLES: 36h BEARINGS: Steel 20mm angular contact WEIGHT: 245g / 8.64oz

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Dual Angular Contact, this describes the use of both angular contact bearings & angled bearing cups/hub bores used in the hub design. The AC-2 hub features revolutionary bearing installation & function never seen before in a bicycle hub. It has been designed from the ground up for ease of maintenance & optimal bearing performance. Here are a few key points of the AC-2 BMX Front Hub: The AC-2 hubs use 20mm Angular Contact bearings with a wave spring pre-load. Bearings are pressed into tapered cups that mate with the angled bores machined into the hub shell. This design feature allows bearing/cup to be easily installed & removed from hub shell without any special tools. No more presses or hammers needed! Another attribute of the tapered bearing cup/angled hub shell bore design is how the bearings seat in the hub. The bearings/cups on each side of the hub shell are in perfect alignment with each other! This ensures superior bearing performance & less chance of premature wear. Hub shell literally floats on the axle. The only force on the bearings is supplied by the wave spring (which delivers the appropriate bearing pre-load needed for angular contact bearings). Tightening of axle bolts has absolutely no affect on the bearings! The bearings, wave spring, & shim (s) are secured on the axle by one retaining ring. The only tool used to assemble/disassemble the AC-2 hub is a pair of snap ring pliers! section Product Specs AXLE
Size:  Female SPOKE HOLES: 36h BEARINGS:  Angular contact WEIGHT: 245g (8.64oz)
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Adapts the AC-2 hubs 15mm threaded axle to use 3/8 (10mm) bolts. -M15mm x 1.5 external threading with 3/8-16 interal threading -Sold as set (2pcs) ...

Replacement bolts for Profile AC-2 or Elite 15/20 Hubs. The bolts are precision machined from 7075 Aluminium with a black anodized finish & laser etched graphics. Different options available for all hub & dropout configurations. -Sold as set (2pcs) -
Includes: Aluminium washers -Use 10mm hex key Note: These will not work with regular Elite hubs
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Replacement bolts for Profile AC-2 or Elite 15/20 Hubs. The bolts are precision machined from 7075 Aluminium with a black anodized finish & laser etched graphics. Different options available for all hub & dropout configurations. -Sold as set (2pcs) -
Includes: Aluminium washers -Use 10mm hex key Note: These will not work with regular Elite hubs
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Replacement bolts for Profile AC-2 or Elite 15/20 Hubs. The bolts are precision machined from 7075 Aluminium with a black anodized finish & laser etched graphics. Different options available for all hub & dropout configurations. -Sold as set (2pcs) -
Includes: Aluminium washers -Use 10mm hex key Note: These will not work with regular Elite hubs
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Replacement bolts for Profile AC-2 or Elite 15/20 Hubs. The bolts are precision machined from 7075 Aluminium with a black anodized finish & laser etched graphics. Different options available for all hub & dropout configurations. -Sold as set (2pcs) -
Includes: Aluminium washers -Use 10mm hex key Note: These will not work with regular Elite hubs
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The Profile Acoustic stem sports a hollow body & a slick front-load design. It's plenty light at 9.6 oz & is machined from 6061 aluminium in the USA. section Product Specs TYPE: Front Load REACH: 48mm or 53mm RISE: 8.6mm CLAMPING DIAMETER: 22.2mm WEIGHT: 272g ...