Crupi 20 x 1-1/8 28H CenterLock Wheelset
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Crupi 20 x 1-1/8 28H CenterLock Wheelset
Description
The Crupi 20 x 1-1/8 28H CenterLock Wheelset is an all-new 2026 race-ready wheelset built specifically for Micro, Mini, Junior, and Expert BMX frames. At the heart of this build is Crupi's Quad CenterLock hubset, featuring 150 ratchet teeth that engage every 2.4 degrees - delivering one of the fastest spring and pawl engagement systems in BMX racing. Laced with 15G spokes and alloy nipples to race-tested 451mm Rhythm Section 28H rims, this wheelset is engineered to perform from the first gate drop to the finish line.
The rear hub's 6mm Allen screws eliminate the need for tensioner spacers, making installation clean and secure in frames with enclosed dropouts. Four included cog spacers let you dial in perfect chain alignment for any frame setup. Future-proofed with CenterLock compatibility, this wheelset can be converted to disc brake use with the addition of a Crupi Disc Brake Adapter Kit (sold separately), giving young racers room to grow without swapping wheelsets.
Key Features
- Quad CenterLock Hub - 150 Ratchet Teeth: Engages every 2.4 degrees for near-instant power transfer - the fastest spring and pawl system in BMX.
- 451mm Rhythm Section 28H Rims: Race-tested double-wall rims laced with 15G spokes and alloy nipples for a stiff, reliable build.
- CenterLock Disc Brake Ready: Compatible with Crupi's CenterLock Disc Brake Adapter Kit, allowing future conversion to disc brakes (adapter sold separately).
- V-Brake & Disc Brake Compatible: Works with both brake systems right out of the box for maximum frame compatibility.
- 6mm Allen Rear Axle Screws: No tensioner spacers needed - fits cleanly into frames with enclosed dropouts.
- 4 Included Cog Spacers: Allows precise cog positioning for optimal chain alignment across different frame setups.
- 16T Aluminum Cog Included: Lightweight aluminum cog ready to race right out of the box.
- Rider Weight Limit - 125 lbs: Designed and rated for Micro, Mini, Junior, and Expert class riders.
- Weight - 2 lbs 10 oz: A lightweight race wheelset built to keep young racers fast and competitive.
- Presta Valve Compatible: Requires Presta tubes (not included) - standard for performance BMX race wheels.
What's Included
- Crupi 20 x 1-1/8 28H CenterLock Front Wheel
- Crupi 20 x 1-1/8 28H CenterLock Rear Wheel
- 16T Aluminum Cog
- 4 Cog Spacers
- Rim Tape
Why You'll Love It
Crupi has been a cornerstone of BMX racing for decades, and the 2026 CenterLock Wheelset represents the brand's continued commitment to building the fastest, most reliable race components for young riders. The Quad CenterLock hub system is engineered to give racers every advantage off the gate, with engagement so fast it feels instant. Parents and coaches alike will appreciate the thoughtful design details - from the enclosed dropout-friendly axle screws to the cog spacers that make setup effortless. Built to handle the demands of weekly race days and hard training sessions, this wheelset is a long-term investment in your rider's performance. With disc brake upgrade potential already baked in, the Crupi CenterLock Wheelset grows with your racer as they move up through the classes.
Product Specifications
View Product Specs
| Wheel Size | 20 x 1-1/8" |
|---|---|
| Hole Count | 28H |
| Rim Size | 451mm |
| Rim Model | Rhythm Section 28H |
| Hub Type | Crupi Quad CenterLock |
| Engagement | 150 ratchet teeth / every 2.4 degrees |
| Engagement System | Spring & Pawl |
| Spoke Gauge | 15G |
| Nipples | Alloy |
| Cog | 16T Aluminum |
| Valve Type Required | Presta |
| Brake Compatibility | Disc and V-Brake |
| Weight | 2 lbs 10 oz |
| Recommended Rider Weight Limit | 125 lbs |
| Frame Compatibility | Micro, Mini, Junior & Expert frames |
| Year | 2026 |
FAQ
Do I need to buy tubes separately?
Yes - these wheels require Presta valve tubes, which are not included. Presta tubes are standard for performance BMX race wheels and are available separately. Make sure to pick up a set before your first ride.
Can I convert this wheelset to disc brakes?
Yes! The Quad CenterLock hub is designed to be disc brake compatible. You'll need to add the Crupi Disc Brake Adapter Kit (sold separately) and a CenterLock ISO Converter (also sold separately) to complete the conversion. It's a great upgrade path as your rider progresses.
What frames are these wheels compatible with?
These wheels are designed to fit Micro, Mini, Junior, and Expert BMX race frames. The 20 x 1-1/8" 451mm rim size is the standard for these classes. If you're unsure whether your frame is compatible, check your frame's recommended wheel size or contact the frame manufacturer.
What is the rider weight limit for this wheelset?
Crupi recommends a maximum rider weight of 125 lbs for this wheelset. It is specifically engineered for younger, lighter BMX racers in the Micro, Mini, Junior, and Expert classes. Riders exceeding this weight should look at Crupi's larger wheelset options.
Do I need tensioner spacers to install this wheelset?
No - the new 28H rear hub features 6mm Allen screws, which means tensioner spacers are no longer needed. The hub fits cleanly and securely into frames with enclosed dropouts, making installation straightforward and clean.
What is the CenterLock engagement system and why does it matter in BMX racing?
The Crupi Quad CenterLock hub uses a spring and pawl engagement system with 150 ratchet teeth, engaging every 2.4 degrees. In BMX racing, faster hub engagement means more of your pedal power is transferred to the wheel the instant you push down - critical when every fraction of a second counts off the starting gate. This system is widely regarded as one of the fastest in the sport.
Thank you for trusting us with your order! This product is shipped directly from the manufacturing warehouse to get to customers all over the U.S. as soon as possible!
While many of our products are prepared and shipped out within 48 hours, some of our items are built to order or require custom pieces that could take 2-6 weeks to prepare before shipping! Please contact us at 888-884-2234 for a delivery ETA if you have a strict timeline.
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Omaha Sports & Games Team
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| Specification name | Specification Value |
|---|---|
| Color pattern | Blue, Black, Red |