Protect yourself from flats with Bontrager Thorn Resistant tubes. Asymmetric design uses thicker rubber on the tread side and thinner rubber elsewhere, which saves weight while maximizing puncture protection.
How To: Fix a Flat Bike Tire
Flat? Fixed. Our simple how-to video will show you how to get back on two wheels in no time flat.
If for any reason you're not satisfied with a Bontrager or Trek aftermarket purchase, return the item, along with the original sales receipt to the original place of purchase within 30 days for an exchange or refund. Think of it as a 30-day test ride.
| Size | 12" x 1.75-2.125", 35mm | 16" x 1.5-1.75", 35mm | 16" x 1.9-2.125", 30mm | 20" x 1.5-1.75", 35mm | 20" x 1.9-2.125", 35mm | 24" x 1.5-1.75", 35mm | 24" x 1.9-2.125", 35mm | 26" x 1.5-1.75", 35mm | 26" x 1.9-2.125", 35mm | 29" x 2.0-2.4", 48mm | 700C x 28-32mm, 35mm | 700C x 35-44mm, 35mm |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Diameter | 12" | 16" | 16" | 20" | 20" | 24" | 24" | 26" | 26" | 29" | 700C | 700C |
| Width | 1.75-2.125" | 1.5-1.75" | 1.9-2.125" | 1.5-1.75" | 1.9-2.125" | 1.5-1.75" | 1.9-2.125" | 1.5-1.75" | 1.9-2.125" | 2.0-2.4" | 28-32mm | 35-44mm |
| Length | 35mm | 35mm | 30mm | 35mm | 35mm | 35mm | 35mm | 35mm | 35mm | 48mm | 35mm | 35mm |
| Valve | Schrader | Schrader | Schrader | Schrader | Schrader | Schrader | Schrader | Schrader | Schrader | Schrader | Schrader | Schrader |
| ETRTO | 44/54-203 | 38-305 | 48/54-305 | 38/44-406 | 48/54-406 | 38/44-507 | 48/54-507 | 40/47-559 | 50/57-559 | 51/61-622 | 28/32-622 | 35/44-622 |
| Weight | 235g | 260g | 350g | 330g | 455g | 395g | 560g | 445g | 615g | 750g | 380g | 420g |
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