Quick Summary
The Impac 2 pack cycle tubes are 16" inner tubes with Schrader valves. The pack is listed for 16 x 1.75 to 2.25 tyres, with ETRTO sizes 47-305, 50-305, 54-305 and 57-305 shown in the product details. A 35 mm valve length and a new valve cap are also stated.
For a bicycle inner tube purchase, the main checks are tyre size, valve type and whether the valve length suits the wheel rim and pump setup you already use.
Key Details
| Detail | Verified information and buyer relevance |
|---|---|
| Brand | Impac. Helps identify the exact tube range. |
| Pack quantity | 2 tubes. Useful if you need a spare or want to replace both tubes at once. |
| Wheel size | 16". Confirms the tube is for 16-inch wheels. |
| Tyre size range | 16 x 1.75 to 2.25. Check your tyre sidewall against this range. |
| ETRTO sizes | 47-305, 50-305, 54-305, 57-305. Use these figures to match the tyre more precisely. |
| Valve type | Schrader valve. Make sure your pump head and rim valve hole suit this type. |
| Valve length | 35 mm. Confirm this length works with your wheel and pump access. |
| Included cap | New valve cap. A small included part that covers the valve top. |
What to Compare Before Buying
- Tyre size: Match the stated 16 x 1.75 to 2.25 range, or the ETRTO number on your existing tyre, before choosing.
- Valve type: This tube uses a Schrader valve, so it needs the matching pump head and rim opening.
- Valve length: The stated 35 mm length should be checked against your wheel and access requirements.
- Pack quantity: This is a 2 pack, so compare it with how many tubes you need.
What Is Included
- 2 x Impac cycle tubes
- Schrader valves
- Valve caps
Before You Decide
Confirm the 16-inch size, the 16 x 1.75 to 2.25 tyre range and the Schrader valve type before choosing an offer. The 2 pack format matters if you only need one tube, and the 35 mm valve length should suit your wheel setup.









