Quick Summary
The YunSCM 2-piece 12 inch kid bike inner tube set is for 12 inch bicycle tyres and uses an AV32mm Schrader valve. The stated size range covers 12 x 1.75, 12 x 1.95, 12 x 2.1 and 12 x 2.125, with ETRTO sizes 47/57-203 also listed.
It is a small replacement tube set for a child bike or other 12 inch tyre application where the valve type and tyre size need to match. The pack contains 2 tubes.
Key Details
| Detail | Verified information and buyer relevance |
|---|---|
| Brand | YunSCM. |
| Product type | Inner tubes for 12 inch bike tyres. |
| Pack quantity | 2 tubes, so the pack suits buyers replacing more than one tube or keeping a spare. |
| Valve type | AV32mm Schrader valve, so the rim and pump setup need to suit Schrader. |
| Stated size range | 12 x 1.75, 12 x 1.95, 12 x 2.1 and 12 x 2.125 are listed, with ETRTO 47/57-203 also shown. |
What to Compare Before Buying
- Tyre size: Check that your tyre size matches one of the listed 12 inch sizes before choosing the tubes.
- Valve type: These use a Schrader valve, so confirm that your wheel and pump are set up for that valve type.
- Pack quantity: The pack includes 2 tubes, which matters if you only need one replacement or want a spare.
- Exact fit: Compare the marked size on the tyre wall with the stated tube size and ETRTO number.
What Is Included
- 2 x 12 inch bicycle inner tubes
- AV32mm Schrader valve
Before You Decide
Confirm the tyre size on the wheel, the Schrader valve type and the 2-piece pack quantity before choosing an offer. For replacement tubes, the exact size match matters more than the bike type name alone.
