Pirelli SporTube Front Tube - 29" × 2.4-2.6", 48mm Presta
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- →Butyl front tube for Bonnell 775 mullet 29" × 2.5" front tires. 48mm Presta valve. Keep as a trail spare alongside the 27.5 rear tube.
- →Aftermarket upgrade — improved performance over stock
- →Verified fitment for 3 bike models
About the Front Tube
A butyl front tube for the 29 inch wheel on a 775, sized 29 by 2.4 to 2.6 inches with a 48 mm Presta valve. Butyl is heavier than TPU but forgiving, cheap to patch and easy to fit at the trailhead. Carry it as a spare even if you run tubeless, since a torn sidewall or a burped bead can leave you needing a tube to get home.
Specs
| brand | Pirelli[2] |
|---|---|
| size | 29 x 2.4-2.6"[2] |
| valve | 48mm Presta[2] |
| material | butyl[2] |
| gtin | 8019227370362[2] |
Install notes
Remove the tire from one side, pull the old tube and check the inside of the tire for thorns or glass. Inflate the new tube slightly, fit it in, seat the tire bead by hand, and pump up within the tire's pressure range.
Compare with
Sources
- https://wiredwhips.com/data/catalog.json (accessed 2026-10-19)
- https://worldwidecyclery.com/products/pirelli-sportube-tube-29-x-2-4-2-6-48mm-presta-valve (accessed 2026-10-19)
- https://ridebonnell.com/products/bonnell-775-mx (accessed 2026-10-19)
- https://ridebonnell.com/products/bonnell-775-am (accessed 2026-10-19)
- https://ridebonnell.com/products/bonnell-775-am-touring (accessed 2026-10-19)
Last reviewed 2026-10-19
Fits These Bikes
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Pirelli SporTube Front Tube - 29" × 2.4-2.6", 48mm Presta
$19.99