Schwalbe Smart Sam Tyre
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The Schwalbe Smart Sam 20-inch tyre is a tube-type replacement for bikes with 20-inch wheels, ideal if you need to replace a worn tyre without changing the rim. It has a wire bead and weighs 435 g. The maximum pressure is 4.5 bar (65 PSI) and the maximum load is 65 kg: observe these limits when inflating and riding the bike.
The tread is HS624 in the K-Guard version, with SBC compound and a thread density of 50 TPI. When choosing, the most precise reference is ETRTO code 47-406: compare it with the code printed on your current tyre, rather than relying solely on the designation 20x1,9 or 20x1.85.
| Size | 20 inches (20x1,9 from supplier specification; 20x1.85 from verification) |
|---|---|
| ETRTO code | 47-406 |
| Bead | Wire (wired) |
| Weight | 435 g |
| Maximum pressure | 4.5 bar (65 PSI) |
| Maximum load | 65 kg |
| Use | With an inner tube (tube type) |
| Tread | HS624, K-Guard version |
| Compound | SBC |
| Thread density (TPI) | 50 TPI |