Effetto Mariposa Caffelatex Strip Medium-26/27.5" (X2)

Caffélatex Tubeless Strip is a very light, puncture-proof and transparent tubeless rim strip that makes tubeless conversions quick and easy. Strip allows tubeless conversion of most standard bicycle wheels, using Tubeless or Tubeless-Ready tyres and Caffélatex or Végétalex sealant. 

• The easiest way to perform a tubeless conversion
• Very light tubeless rim strip
• Damage-resistant
• Long lasting, it can be moved from one wheel to another
• Extended range of widths

Characteristics:

Available sizes

Caffélatex Tubeless Strip is available in the following widths:

• S (25 mm): for rims with internal width between 16 and 20 mm;
• M (30 mm): for rims with internal width between 20 and 25 mm;
• L (35 mm): for rims with internal width between 25 and 30 mm;
• Plus S (40 mm): for rims with internal width between 30 and 35 mm;
• Plus M (45 mm): for rims with internal width between 35 and 40 mm;
• Plus L (50 mm): for rims with internal width between 40 and 45 mm;
• Fat S (70 mm): for rims with external width between 60 and 65 mm;
• Fat M (85 mm): for rims with external width between 75 and 80 mm;
• Fat L (105 mm): for rims with external width between 95 and 100 mm;

Each width (S, M, L) is available in two length options, to fit different wheel diameters (26”/27,5” or 29”). Additionally, there are three versions available: Standard, Fat, and Plus. In total, there are fifteen options to choose from.

Strip is sold as kits containing two rim strips and two Caffélatex Tubeless Valves Black 40 mm (for rims up to 37 mm of height), 2 wheels per kit.


Max pressure for Strip is 7 bar (100 psi), making it suitable also for wider road tyres (starting at 28mm of width).

Note for road and gravel riders looking for the correct Strip for their wheels

• wheels identified as 29" (for mtb), 28" (for road) and 700c have the same rim diameter, 622 mm in ISO/ETRTO standard. Therefore, the right Strip for 700c wheels is 29".
• wheels identified as 27,5" (for mtb) and 650b have the same rim diameter, 584 mm in ISO/ETRTO standard. Therefore, the right Strip for 650b wheels is 26/27,5".

Tubeless conversion, made easy

Caffélatex Strip is the ultimate tubeless solution for very difficult rims (for example, aluminum rims with mat surface finishing, rims with very deep channel, pin-joined rims where the junction is not welded etc.). This because Strip isn’t adhesive: it’s made in one piece and relies on its elasticity to sit tight on the rim.

Please note: sorry, Strip won't work on asymetric rims with off-center valve hole.

To convert a rim to tubeless, simply remove the existing rim-strip, choose the appropriate Strip size and follow the following easy steps:

1. (OPTIONAL STEP) Use a roll of electrician tape and seal the spoke holes of the rim. This just in order to create an additional protection to prevent sealant from getting inside the rim inner chamber, in the unlikely case the Strip moves and let some liquid go through.
2. Insert the provided Caffélatex Tubeless Valve in the hole of Strip, so that the rubber base is in contact with Strip.
3. Secure Strip to the rim, tightening the nut on the valve stem. It’s important to push the valve base against the rim while doing so, to achieve a proper air-tightness.
4. Keeping the wheel with the valve at 12 o’ clock, finish mounting Strip onto the rim.
   With a screwdriver or a similar tool, center Strip inside the rim channel.
5. Add tubeless tyre, Caffélatex or Végétalex sealant, inflate, ride.

Additional details in the tech video down below.

Lightweight

Being thin (0,8 mm) and strong, Strip only weighs 30 g (for S 26″/27,5″), making it weight-wise competitive with adhesive tubeless tapes (ranging between 9 and 20 g per wheel) and simply superior to old butyl tubeless rim strips (with limited strength and adding over 65 g per wheel). Weights(*) for a single Strip are:

• Strip S 26″/27,5″: 30 g
• Strip S 29″: 33 g
• Strip M 26″/27,5″: 36 g
• Strip M 29″: 39 g
• Strip L 26″/27,5″: 48 g
• Strip L 29″: 53 g
• Strip Plus S 26″/27,5″: 55 g
• Strip Plus S 29″: 58 g
• Strip Plus M 26″/27,5″: 68 g
• Strip Plus M 29″: 72 g
• Strip Plus L 26″/27,5″: 91 g
• Strip Plus L 29″: 95 g

(*) tolerance +/- 10% on nominal weight


Highly resistant to damage and puncture

The special polymer employed in its construction makes Strip highly resistant to damage and puncture. It’s also very stable from a chemical standpoint and cannot be damaged by Caffélatex or other non-chemically-aggressive tyre sealants.


WARNING: using sealants containing aggressive chemicals or ammonia, or cleaning the rim with aggressive chemical products can damage Caffélatex Tubeless Strip and may represent dangers to the user. We recommend using only Caffélatex or Végétalex sealants, or Espresso / Espresso Doppio inflate & repair cartridges with Caffélatex Tubeless Strip.

Long lasting

Something you can do with Strip that you simply can’t with adhesive tubeless tapes: moving Strip from one rim to another. 
As the Strip material is very durable, its lifespan can exceed the one of the rim it’s mounted on, and can it be removed and mounted on another rim. Strip can also be removed and mounted on the same rim if a spoke needs to be replaced.

Made in Italy.

EFFETTO MARIPOSA

Effetto Mariposa delivers premium bike maintenance products and tools, trusted by cyclists who demand precision and reliability. Known for their Caffélatex tubeless tyre sealant, torque wrenches, chain lubrication, and protective film kits, Effetto Mariposa combines Swiss engineering with Italian cycling passion. Whether you're racing, training, or commuting, their products ensure your bike runs at peak performance. Get top-quality sealants and maintenance gear from Effetto Mariposa at Hyper Ride with fast and reliable delivery.