Quick Summary
The YunSCM 2-Pack 16 inch Heavy Duty Bike Inner Tubes are bicycle inner tubes with an AV 32 mm Schrader valve. They are stated as compatible with 16 x 1.75, 16 x 1.90, 16 x 1.95, 16 x 2.0, 16 x 2.10, 16 x 2.125 and 16 x 2.25 tyres, with 44/57-305 and 45/57-305 size references also appearing in the product details.
This pack contains 2 inner tubes. If you are choosing for a specific bike, the key checks are tyre size, valve type and whether the 305 sizing matches your wheel.
Key Details
| Detail | Verified information and buyer relevance |
|---|---|
| Brand | YunSCM. Useful for matching the exact product range you want. |
| Product type | Bike inner tubes. Check tyre size and valve type before buying. |
| Pack quantity | 2 tubes. Confirm you want a twin pack rather than a single tube. |
| Wheel size | 16 inch. Make sure this matches your wheel size. |
| Compatible tyre sizes | 16 x 1.75, 16 x 1.90, 16 x 1.95, 16 x 2.0, 16 x 2.10, 16 x 2.125 and 16 x 2.25. |
| Valve type | AV 32 mm Schrader valve. Check your rim and pump setup suit this valve type. |
| Size references | 44/57-305 and 45/57-305 are both mentioned. Check the exact size marking needed for your wheel. |
What to Compare Before Buying
- Wheel and tyre size: This pack is aimed at 16 inch tyres in the listed widths. Compare the numbers on your existing tyre or wheel.
- Valve type: The tubes use an AV 32 mm Schrader valve. Make sure your pump and wheel setup are suitable.
- Pack quantity: You get 2 tubes. Check whether you need one replacement or a spare as well.
- Exact sizing reference: The product text includes both 44/57-305 and 45/57-305 references. Confirm the marking that matches your bike.
What Is Included
- 2 x 16 inch bike inner tubes
- AV 32 mm Schrader valve on each tube
Before You Decide
Check the 16 inch wheel size, the listed tyre width range and the AV 32 mm Schrader valve before choosing this pack. The twin-pack format also matters if you only need one tube. Confirm the exact size marking on your wheel to avoid ordering the wrong fit.
