Bsfhqs Carbon Hardtail MTB Frame QR 135mm
- Number of pieces: 1
- Assembly required: No
- Item Weight: 11.02 pounds
- Package Dimensions: 43.3 × 21.6 × 9.8 inches
Last refreshed Jun 21, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
A lighter carbon option for a 26/27.5 inch hardtail build, but only if your wheels use a 135mm quick release hub rather than a thru axle.
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ASIN: B0DJR4K6NDModel: BSFHQS001Category: Mountain Bike Frames
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Overview
A carbon fiber hardtail frame for 26 or 27.5 inch wheels, offered in 15.5, 17.5, and 19.5 inch heights with a 135mm quick release rear end. Like the aluminum hardtail from the same seller, it ships as a frame only kit rather than a complete bike.
Weight is listed at about 1150 grams plus or minus 50g, lighter than a welded aluminum frame because the tubes are molded carbon fiber rather than metal. Shift and brake housing routes internally through the frame, and the disc mount is a direct PM74mm setup for a 160mm rotor.
- Three frame sizes (15.5/17.5/19.5in) for 26 or 27.5in wheels
- 135mm quick release rear spacing
- Carbon fiber frame at about 1150g plus or minus 50g
- PM74mm disc mount for a direct 160mm rotor
Who it's for
Someone converting an existing 135mm quick release wheelset onto a lighter frame, or building a 26 or 27.5 inch hardtail from parts. Not suited to a thru axle wheelset or a 29 inch build.
Pros and cons
- Carbon fiber frame lighter than the alloy sibling frame
- Internal routing for shift and brake lines
- Threaded BB68 bottom bracket, easier to service
- Ships with headset, seatpost clamp, and derailleur hanger
- Quick release 135mm rear end, not thru axle
- Tops out at 27.5 inch wheels and 2.5in tires
- No rating or review history on this listing yet
Performance notes
The frame takes a 41.8x52mm headset, a 31.6mm seatpost with a 34.9mm clamp, and a BB68mm threaded bottom bracket, which is simpler to service than a press fit shell. Tire clearance runs up to 27.5x2.5 inch, and the rear end is a 9x135mm quick release rather than a thru axle.
Specifications
| Brand | Bsfhqs |
|---|---|
| Model | BSFHQS001 |
| Dimensions & fit | |
| Item Weight | 11.02 pounds |
| Package Dimensions | 43.3 × 21.6 × 9.8 inches |
| Included components | |
| Number of pieces | 1 |
| Other details | |
| Assembly required | No |
| Asin | B0DJR4K6ND |
| Manufacturer | BSFHQS |
| Item model number | BSFHQS001 |
| Department | Unisex Adult |
Frequently asked questions
What wheel sizes fit this Bsfhqs carbon frame?
26 and 27.5 inch wheels, with tire clearance up to 27.5x2.5 inch.
Is the rear end thru axle or quick release?
Quick release, specifically a 9x135mm QR, not a Boost thru axle.
What comes in the box?
The frame, headset, seatpost clamp, and a derailleur hanger (tail hook); fork, wheels, and drivetrain are not included.