Quick Summary
The Contrast 27.5″ x 2.1 Schrader valve bike inner tubes are sold as a pair and suit 27.5″ wheels. They are described as fitting widths from 1.75″ to 2.125″, including 2.1″.
Key Details
| Detail | Verified information and buyer relevance |
|---|---|
| Product type | Bike inner tubes for 27.5″ wheels. |
| Size | 27.5″ x 2.1″ with ETRTO 54-584. Check the wheel and tyre size match before choosing an offer. |
| Valve type | Schrader valve, also called a car type valve. Confirm your pump or inflation setup suits this valve type. |
| Pack quantity | Pair of tubes. This is useful if you want two matching inner tubes in one purchase. |
What to Compare Before Buying
- Wheel size: This set is for 27.5″ wheels, so compare it with the size printed on your tyre sidewall or current tube.
- Tyre width: The stated fit range is 1.75″ to 2.125″, including 2.1″. Check that your tyre sits within that range.
- Valve type: The tubes use a Schrader valve. Make sure your pump head and rim opening suit that format.
- Quantity: The pair format matters if you only need one tube or prefer to keep a spare.
Before You Decide
Confirm the 27.5″ wheel size, the 2.1″ tyre width, and the Schrader valve format before choosing an offer. The pair quantity is also worth checking if you only need a single tube.
