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Zechao

Zechao 27.5 Aluminum Soft Tail MTB Frame 16 Inch

Last refreshed Jun 21, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.

Our verdict

A budget aluminum frame with the basics for a 27.5 inch build, but the listing's own axle spec is inconsistent, so verify rear hub compatibility directly before buying.

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ASIN: B0F3K155SYModel: ZECHAO-001Category: Mountain Bike Frames

Overview

A 16 inch aluminum alloy mountain bike frame built for 27.5 inch wheels, with a quick release rear end, externally routed brake line, internally routed derailleur cable, and clearance for tires up to 2.4 inches.

This is a bare frame for riders building up a 27.5 inch hardtail or soft tail rather than a complete bike, and the spec sheet mixes conflicting rear axle widths between the title and the bullet points, so confirm compatibility with your own rear wheel and shock before ordering rather than relying on either number alone.

  • 16 inch aluminum alloy frame
  • 27.5 inch wheel, 2.4 inch max tire
  • 160mm disc brake rotor rating
  • Quick release rear end

Who it's for

Makes sense for riders assembling their own 27.5 inch mountain bike who already have compatible wheels, a rear shock, and drivetrain parts on hand. Not a fit for anyone who needs a plug and play frame or wants routing fully internal, since the brake line runs external.

Pros and cons

Pros
  • Aluminum frame at a lower price point than carbon
  • Fits tires up to 2.4 inches wide
  • Internally routed derailleur cable
Cons
  • Rear axle width is inconsistent between title and spec bullets
  • Brake line routed externally, not fully internal

Performance notes

Brake lines run externally while the derailleur cable is routed internally, a mixed setup common on budget aluminum frames. The frame is rated for tires up to 2.4 inches wide, a 30.44mm seatpost, and a 160mm disc brake rotor, with a rear shock mount sized for a 165 x 24 x 52mm shock.

Specifications

BrandZechao
ModelZECHAO-001

Frequently asked questions

What wheel size is this Zechao frame built for?

It is built for 27.5 inch wheels with clearance for tires up to 2.4 inches wide.

Is the cable routing internal or external?

The brake line is routed externally while the derailleur cable runs internally.

What rear shock fits this frame?

It is sized for a rear shock measuring about 165 x 24 x 52mm.