
Tubolito S-Tubo MTB Tube - 27.5/29 × 1.8-2.5", 42mm Presta
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Wired Whips LLC, 1438 S Sage Bloom Way, Saratoga Springs, UT 84045
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- →Ultralight TPU inner tube that fits both 27.5" and 29" wheels - covers the 775 MX's mullet setup (29" front and 27.5" rear) with a single tube SKU. One-third the weight of a standard butyl tube. Great emergency backup for trail rides. 42mm Presta valve clears all standard rim depths.
- →Aftermarket upgrade — improved performance over stock
- →Verified fitment for 3 bike models
About the Front Tube
Tubolito's S-Tubo is a TPU tube sized 27.5/29 by 1.8 to 2.5 inches, so one tube covers both wheels of a 775 mullet. It packs much smaller than butyl, which makes it a good emergency spare to carry on the bike. It has a 42 mm Presta valve. TPU tubes need TPU patches, so keep the right repair kit with it.
Specs
| size | 27.5/29 x 1.8-2.5"[2] |
|---|---|
| valve | 42mm Presta[2] |
| material | TPU[2] |
| gtin | 9120077573953[2] |
Install notes
Fit as you would any tube: remove the old tube, check the tire for sharp objects, insert the S-Tubo with a little air, and reseat the bead carefully. Inflate within the tire's pressure range. Do not use standard butyl glue patches on TPU.
FAQ
Can one Tubolito tube fit both wheels on a 775?
Yes. The S-Tubo is sized 27.5/29, so it fits both the 29 inch front and 27.5 inch rear on a mullet setup. Check your tire width is within the listed range.
Compare with
Sources
- https://wiredwhips.com/data/catalog.json (accessed 2026-10-19)
- https://www.worldwidecyclery.com/products/tubolito-s-tubo-mtb-tube-27-5-29-x-1-8-2-5-42mm-presta-valve-orange (accessed 2026-10-19)
- https://ridebonnell.com/products/bonnell-775-am-touring (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)
Last reviewed 2026-10-19
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Tubolito S-Tubo MTB Tube - 27.5/29 × 1.8-2.5", 42mm Presta
$46.99