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ROTOR TRACK30 Axle + Spider kit uses a 30mm axle and 7075 T6 CNC aluminum for a light and stiff track drivetrain setup. BCD144x5, 43mm chainline and 140mm Q Factor, compatible with ROTOR ALDHU and VEGAST cranks.
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The ROTOR TRACK30 Axle + Spider kit is a performance drivetrain upgrade designed for track bike, fixed gear and single speed riders. Its 30mm axle design improves crankset stiffness while keeping weight low, helping deliver direct and efficient power transfer.
Made from 7075 T6 CNC-machined aluminum, this kit combines strength, low weight and precise machining quality. The 140mm low Q Factor helps create a more natural and centered pedaling position, making it suitable for track racing, fixed gear street builds and performance-focused single speed setups.
The BCD144x5 spider fits common track and fixed gear chainrings, while the 43mm chainline is designed for track drivetrain standards. This kit is compatible with ROTOR ALDHU and VEGAST crank systems and can be paired with the appropriate BB system based on your frame standard.
The kit includes a ROTOR Track 30mm axle, ROTOR Track spider, 5 chainring bolts and 2 standard spacers. Chainring is not included. Please confirm crank, bottom bracket, frame and chainring compatibility before installation.
Specifications
Brand: ROTOR
Product Name: TRACK30 Axle + Spider
Type: Track / Fixed Gear Axle + Spider Kit
Axle Diameter: 30mm
BCD: 144x5
Chainline: 43mm
Q Factor: 140mm
Material: 7075 T6 CNC Aluminum
Weight: Approx. 192g
Crank Compatibility: ROTOR ALDHU / VEGAST
BB Compatibility: BB30 / BSA / PF30 / PF4130 / PF4630 / UBB4630
Frame Compatibility: BSA / ITA
Included: ROTOR Track 30mm axle, ROTOR Track spider, 5 chainring bolts, 2 standard spacers
Note: Chainring not included