Syndyt 215 Pro 2XL BMX Racing Frame 21.5 Inch
- Bottom Bracket: B52 Oversized Tech BB, adaptable to any crank standard with included adapter.
- Head Tube: Tapered 42/52 Integrated (1 1/8" to 1.5") for precise steering.
- Rear Hub Compatibility: Supports 10/15/20mm rear hubs with integrated chain tensioners.
- Top Tube Length: 21.5 inches (Pro 2XL size), designed for agile BMX racing.
Last refreshed Jun 21, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
A frame-only Pro 2XL BMX racing platform with wide hub and crank compatibility, suited to riders building up their own spec rather than buying a complete bike.
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ASIN: B0FHJN518KModel: 215 Pro 2XLCategory: BMX Bike Frames
Overview
The Syndyt 215 Pro 2XL is a bare BMX racing frame, not a complete bike, built from triple-butted 6061-T6 aluminum with a 21.5 inch top tube for taller or Pro 2XL class racers.
At 4.1 lbs it keeps weight low while a tapered 42/52 head tube (1 1/8 to 1.5 inch) accepts standard tapered forks. The B52 oversized bottom bracket ships with an adapter so it can take multiple crank standards, and the rear end supports 10, 15 or 20mm hubs with built-in chain tensioners, which matters most for riders swapping wheels between axle sizes.
- 21.5 inch top tube, Pro 2XL size
- 6061-T6 aluminum, 4.1 lbs
- Tapered 42/52 head tube
- 140mm disc brake mount
Who it's for
BMX racers or frame builders assembling a Pro 2XL class bike who need a specific top tube length and axle compatibility. Not for buyers expecting a ready-to-ride complete bike, since this is frame only.
Pros and cons
- Frame-only weight of 4.1 lbs
- Supports 10, 15 and 20mm rear hubs
- B52 bottom bracket adapts to multiple crank standards
- Built-in chain tensioners at the dropouts
- Frame only, no fork, wheels or drivetrain included
- No stated warranty or paint durability information
Performance notes
The tapered 42/52 head tube geometry is built for precise steering under race conditions, and the B52 bottom bracket's included adapter lets the frame take different crank standards without needing a separate purchase. Integrated chain tensioners at the dropouts keep chain tension consistent across the 10, 15 and 20mm hub options it supports.
Specifications
| Brand | Syndyt |
|---|---|
| Model | 215 Pro 2XL |
| Bottom Bracket | B52 Oversized Tech BB, adaptable to any crank standard with included adapter. |
| Head Tube | Tapered 42/52 Integrated (1 1/8" to 1.5") for precise steering. |
| Rear Hub Compatibility | Supports 10/15/20mm rear hubs with integrated chain tensioners. |
| Top Tube Length | 21.5 inches (Pro 2XL size), designed for agile BMX racing. |
Frequently asked questions
Does the Syndyt 215 Pro 2XL come as a complete bike?
No, this listing is the frame only.
What rear hub sizes does it fit?
10mm, 15mm and 20mm rear hubs, thanks to the integrated chain tensioners.
What bottom bracket does it use?
A B52 oversized Tech bottom bracket, which comes with an adapter for different crank standards.