- A356 aluminum hub shell with 9mm solid nutted axle (136mm overall axle length) - Choose 70mm or 90mm drum brake front hub (brake lever sold separately)

- Track crank, also for use with internal gear hubs such as the Sturmey 3-speed fixed and 2-speed kickback - Forged 6061 aluminum crankarm/spider with square BB taper - Includes CNC machined, black anodized 7075 aluminum chainwheel (46T)

- shop grade heat-treated steel spanners and wrenches with rubberized handles

- 3-spline steel cogs for use with Sturmey 8-speed internal gear rear hubs - Flat or dished for tuning chainline. Chrome plated

- 3-spline steel cogs for use with Sturmey 3-speed (and 5-speed) internal gear rear hubs - Flat or dished for tuning chainline. Xylan coating for greater durability

- HG-splined 8-10sp cassette hub with 70mm drum brake - A356 aluminum hub shell with 10mm solid axle (175mm overall axle length) - Cassette and brake lever sold separately

- Shifter options for Sturmey 3-speed internal gear hubs - Choose top-mount thumb shifter (22.2mm clamp), bar end shifter for road drop bars or twist shifter; specific shifters for 3-speed fixed hub model S3X

- Threaded for singlespeed freewheel, includes 70mm drum brake - A356 aluminum hub shell with 9mm solid axle (183mm overall axle length) - Freewheel and brake lever sold separately

- Threaded for multi-speed freewheel (7sp), includes 70mm drum brake - A356 aluminum hub shell with 9mm solid axle (183mm overall axle length) - Freewheel and brake lever sold separately

- Dynamo generator front hub features 3.0-watt headlight power supply - A356 aluminum hub shell with 9mm solid nutted axle (140mm overall axle length) - Choose 70mm or 90mm drum brake (brake levers sold separately) - Light sold separately

- Kick-shift 2-speed hub with coaster brake (choose 116mm or 135mm OLD) - Benefits include its simple backpedal-action shifting/braking and no cables or shifters - 6061 aluminum hub shell with 13/32" slotted solid axle (162mm overall axle length) - Gear ratio range of 138% - Includes 22 tooth 3-spline cog - Optional: matching front track hub, BTI number UR-5501

- Reliable chrome-plated Chromoly 4-notch freewheel

- 3-spline steel cogs for use with Sturmey 8-speed internal gear rear hubs - Flat or dished for tuning chainline. Chrome plated

- Internal gear 8-speed hub for use with any IS 6-bolt disc brake - Rotary gear selection with no protruding indicator chain or switch box - Direct drive in first gear allows use of smaller chainwheels - 6061 aluminum hub shell with 13/32" slotted solid axle (185mm overall axle length) - Gear ratio range of 325% - Includes 3-spline 23 tooth cog and a TSS86 twist shifter

- Internal gear 8-speed hub with 70mm drum brake - Rotary gear selection with no protruding indicator chain or switch box - Direct drive in first gear allows use of smaller chainwheels - A356 aluminum hub shell with 13/32" slotted solid axle (185mm overall axle length) - Gear ratio range of 325% - Includes 3-spline 23 tooth cog and a TSS86 twist shifter. Brake lever sold separately

- 3-spline steel cogs for use with Sturmey 3-speed (and 5-speed) internal gear rear hubs - Flat or dished for tuning chainline. Xylan coating for greater durability

- Use a front/reat set or match the front with Sturmey 3sp fixed rear or 2sp kickback rear - 6061 aluminum shell with sealed cartridge bearing and solid nutted axle (145mm front/175mm rear overall axle length) - Rear is flip-flop threaded for freewheel

- Internal gear 3-speed hub with HG-splined 8-10sp freehub body for use with any IS 6-bolt disc brake - 6061 aluminum hub shell with 13/32" slotted solid axle (179mm overall axle length) - Gear ratio range of 177% (33% each step) - Cassette and shifters sold separately. Special shifter setup required: internal 3sp is shifted via a standard mountain 3sp front derailleur shifter. Sturmey Archer shifters not compatible with this hub