PRODUCT DETAILS
All new for 2025, Crupi's Quad CL hub sets. Featuring an all new shape. CenterLock hubs are a major advancement in BMX hub technology making these hubs more universal. All Crupi Quad CenterLock hubs will feature the CenterLock spline mount so these hubs can be used with or without a disc brake rotor. For those who want to move up to Disc brakes, you just need to add a CenterLock rotor or adapter to your hub and you are good to go!
- Easier, quicker and a more secure disc rotor installation. CenterLock hubs utilize a single lockring to secure the rotor, making installation and removal much faster and simpler than fumbling with multiple 6-bolt screws. The single lockring provides a strong and secure interface between the rotor and hub.
- 36H front hubs now feature interchangeable front axles. You can use a standard 3/8" (10mm) axle or swap the axle out to a 20mm front axle.
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No change in the engagement system. Potentially the fastest Spring & Pawl Engagement System and least amount of drag in the BMX industry! The Quad CL Hub features 150 ratchet teeth which engage every 2.4 degrees so what you get it is a super-fast engaging hub. (You won't know it's not instant engagement!)
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We provide 4 cog spacers which allow you to position the cog where it provides the best possible chain alignment. Hub set comes with a 16t cog but is designed to work with any Shimano compatible cog.
- For Crupi frames 2024 and older, we recommend the Elevn Disc adapter kit with a 120mm rotor. For Crupi frames 2025 and newer, use Crupi's Disc adapter kit.
- 36H set weighs 24oz
PRODUCT DETAILS
All new for 2025, Crupi's Quad CL hub sets. Featuring an all new shape. CenterLock hubs are a major advancement in BMX hub technology making these hubs more universal. All Crupi Quad CenterLock hubs will feature the CenterLock spline mount so these hubs can be used with or without a disc brake rotor. For those who want to move up to Disc brakes, you just need to add a CenterLock rotor or adapter to your hub and you are good to go!
- Easier, quicker and a more secure disc rotor installation. CenterLock hubs utilize a single lockring to secure the rotor, making installation and removal much faster and simpler than fumbling with multiple 6-bolt screws. The single lockring provides a strong and secure interface between the rotor and hub.
- 36H front hubs now feature interchangeable front axles. You can use a standard 3/8" (10mm) axle or swap the axle out to a 20mm front axle.
-
No change in the engagement system. Potentially the fastest Spring & Pawl Engagement System and least amount of drag in the BMX industry! The Quad CL Hub features 150 ratchet teeth which engage every 2.4 degrees so what you get it is a super-fast engaging hub. (You won't know it's not instant engagement!)
-
We provide 4 cog spacers which allow you to position the cog where it provides the best possible chain alignment. Hub set comes with a 16t cog but is designed to work with any Shimano compatible cog.
- For Crupi frames 2024 and older, we recommend the Elevn Disc adapter kit with a 120mm rotor. For Crupi frames 2025 and newer, use Crupi's Disc adapter kit.
- 36H set weighs 24oz








