Tubolito S-Tubo MTB Tube - 27.5/29 × 1.8-2.5", 42mm Presta for 775 AM Touring
WHEELS & TIRES·Front Tube

Tubolito S-Tubo MTB Tube - 27.5/29 × 1.8-2.5", 42mm Presta

●AftermarketFeatured
$46.99
$12 flat shipping

Returns within 30 days. Customer-initiated returns have a 10% restocking fee. See Returns policy.

Wired Whips LLC, 1438 S Sage Bloom Way, Saratoga Springs, UT 84045

Secure checkout by Stripe

Secured by Stripe · Your card info never touches our servers

$12 flat shipping
every US order
OEM & aftermarket parts
brand listed on each page
Fitment checked per model.
Ask us if unsure.
30-day returns
unused parts
VisaMastercardAmexApple PayGoogle Pay
  • →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

size27.5/29 x 1.8-2.5"[2]
valve42mm Presta[2]
materialTPU[2]
gtin9120077573953[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

  1. https://wiredwhips.com/data/catalog.json (accessed 2026-10-19)
  2. 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)
  3. https://ridebonnell.com/products/bonnell-775-am-touring (accessed 2026-10-19)
  4. https://ridebonnell.com/products/bonnell-775-mx (accessed 2026-10-19)
  5. https://ridebonnell.com/products/bonnell-775-am (accessed 2026-10-19)

Last reviewed 2026-10-19

Reviews

0 reviews

No on-site reviews for this part yet.

Bought recently? Leave a Google review for Wired Whips — it helps other riders and unlocks store credit on eligible orders.

Tubolito S-Tubo MTB Tube - 27.5/29 × 1.8-2.5", 42mm Presta

$46.99