Quick Summary
The Impac 2 pack 20" cycle inner tubes are for bikes that use a Schrader valve and a 20" tube size. The tubes are listed for 20 x 1.50 to 2.35 sizing, with ETRTO sizes from 40-406 to 60-406, and the valve length is stated as 35 mm.
This twin pack is relevant where the wheel size, valve type and tube width range all match the bike. Check the tyre size on the current tube or tyre sidewall before choosing an offer.
Key Details
| Detail | Verified information and buyer relevance |
|---|---|
| Brand | Impac. Useful for buyers matching an existing Impac tube or preferred brand. |
| Pack quantity | 2 tubes. A twin pack matters if you need both wheels covered or want a spare tube. |
| Wheel size | 20". Match this to the wheel size fitted to the bike. |
| Tyre size range | 20 x 1.50 to 2.35. This covers the stated sizes from 20 x 1.50, 1.75, 2.0, 2.10, 2.25 and 2.35. |
| ETRTO sizes | 40-406, 47-406, 50-406, 54-406, 57-406, 60-406. This helps when checking the exact fit against the tyre marking. |
| Valve type | Schrader valve. Make sure the wheel rim is drilled for this valve type. |
| Valve length | 35 mm. The valve length needs to suit the rim depth and pump access. |
What to Compare Before Buying
- Wheel size: This set is for 20" wheels, so compare it with the size marked on the tyre or current tube.
- Width range: The stated fit range is 20 x 1.50 to 2.35, so check that your tyre sits within that range.
- Valve type: These tubes use a Schrader valve, so the rim and pump need to match that style.
- Valve length: The 35 mm valve length should suit the rim and inflation access on the bike.
Who This Product May Suit
This twin pack is relevant to 20" bikes that use Schrader valves and tyres within the stated size range. It is especially useful when matching a BMX or kids bike wheel setup that uses those measurements.
Before You Decide
Check the 20" wheel size, the tyre width range and the Schrader valve type before choosing a pack. Also confirm that the 35 mm valve length suits the rim and pump access on your bike.
