Syndyt 210 Pro XL BMX Racing Frame 21 Inch
- Size: 21 inches
- Item Weight: 4.05 pounds
- Color: Blue
Last refreshed Jun 21, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
A frame for riders who already know their build, not a starter purchase. Solid alloy spec for the class but requires a full parts build around it.
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ASIN: B0FHKWWL32Model: 210 Pro XLCategory: BMX Bike Frames
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Overview
A bare BMX racing frame, not a complete bike. Built from 6061-T6 aluminum with triple-butted, hydroformed tubes, weighing 4.05 lbs, sized for the Pro XL 21 inch top tube class.
Since this is frame only, buyers need to already own or plan to build up wheels, a fork, brakes, and drivetrain. The B52 oversized bottom bracket includes an adapter for different crank standards, and the tapered 42/52 head tube accepts a fork with a 1 1/8 inch upper and 1.5 inch lower steerer for stiffer front-end steering.
- 21 inch top tube, Pro XL size
- Tapered 42/52 integrated head tube
- 140mm disc brake mount
- Integrated chain tensioners
Who it's for
Suits racers or builders assembling a custom BMX race bike who want a specific frame geometry and material spec rather than a stock complete bike. Not for anyone wanting a ready-to-ride bicycle out of the box.
Pros and cons
- Lightweight 4.05 lb 6061-T6 aluminum frame
- B52 bottom bracket adapts to multiple crank standards
- Works with 10/15/20mm rear hubs
- Frame only, no fork, wheels, or drivetrain included
- No listed rating or review history to check
Performance notes
The triple-butted, hydroformed aluminum tubing is intended to shave weight while keeping strength at stress points, and the tapered head tube stiffens the front end for sprint starts and cornering. Rear hub compatibility spans 10, 15, and 20mm axles with built-in chain tensioners, so the frame can match several hub standards without an adapter.
Specifications
| Brand | Syndyt |
|---|---|
| Model | 210 Pro XL |
| Size | 21 inches |
| Item Weight | 4.05 pounds |
| Color | Blue |
Closest rivals on specs
SOMA Rufus Urban Cruiser BMX Frameset 20 Inch- Size 21 vs 16.5 inches (+27%)
- Item Weight 4.05 vs 15 pounds (-73%)
Frequently asked questions
Does the Syndyt 210 Pro XL come with wheels or a fork?
No, this listing is for the frame only; wheels, fork, brakes, and drivetrain are sold separately.
What crank standards fit the B52 bottom bracket?
The B52 oversized bottom bracket ships with an adapter so it can accept multiple crank standards.
What size fork does the frame need?
It uses a tapered 42/52 integrated head tube, which takes a fork with a 1 1/8 inch upper and 1.5 inch lower steerer.