MTB Tubeless Kit - Closeout - universal/25 mm

NoTubes MTB Tubeless Kit - Closeout

Item number: 52417

For conversion to a tubeless system: the tubeless kit by NoTubes

A set with everything necessary for tubeless conversion: tubeless valves, tubeless rim tape and tyre sealant.
Stan's Yellow rim tape is specially designed to seal the rim bed of rims using Bead Socket Technology (BST). The Yellow Rim Tape can also be used as light rim tape on any rim.
The Universal Mountain tubeless valve by NoTubes is compatible with ZTR and other tubeless rims and is also suitable for converting standard rims to tubeless. The removable valve insert facilitates the use of sealants or valve adapters.
The tyre sealant closes holes up to 6 mm in size and can be used up to 30° C.

Technical Information:

Tubeless Valve
steel, nickel-plated
35 mm
Valve Hole Diameter:
up to 8 mm

Rim Tape:
Rim Width:
21 / 25 / 27 mm
9.2 m


Tubeless Valve
  • NoTubes ZTR rims and wheels
  • SunRingle wheels with NoTubes BST Technology
  • WTB TCS rims and wheels
  • UST wheels (including crankbrothers, Fulcrum, Mavic and Shimano)
  • Bontrager Tubeless Ready rims and tyres with Bontrager Tubeless Ready rim tape

Rim Tape:
21 mm
  • ZTR Olympic
  • ZTR 355
  • ZTR Alpine
  • ZTR Crest
  • ZTR Iron Cross
  • ZTR Alpha 340 (2 layers)
  • ZTR Alpha 400 (2 layers)
  • most road bike rims

25 mm
  • ZTR 355 26"
  • ZTR 355 27.5"
  • ZTR 355 29"
  • ZTR Crest
  • ZTR Arch EX
  • ZTR Flow EX

27 mm
  • ZTR Flow EX
  • ZTR Bravo
  • ZTR Hugo 52 mm
  • ZTR Rapid 28
  • ZTR Rapid 30

Tyre Sealant:


Stan's NoTubes Tire Sealant
tyre sealant
Nominal Amount:
473 ml
Packaging Type:

Manufacturer's Notice:
Ammonia in tyre sealant: NoTubes indicates that the ammonia evaporates immediately after filling, so that no damage can occur even after years of use.

NoTubes recommends checking every 3 - 4 weeks if the sealant is still fluid and sufficient (also remember to move your bike regularly). In very dry climates, it may be necessary to refill more frequently.

Hazardous Substance:

Signal Word:

Hazardous Components:

Propylene glycol (20 - 40%), natural rubber latex (15 - 30%)

Hazard Warnings:

H317 May cause an allergic skin reaction.

Safety Information:

P261 Avoid breathing dust/fume/gas/mist/vapours/spray.
P280 Wear protective gloves
P272 Contaminated work clothing should not be allowed out of the workplace.
P321 Special treatment (see identification label: ensure good ventilation!).
P363 Wash contaminated clothing before reuse.
P333 + P313 If skin irritation or rash occurs: Get medical advice/attention.
P352 IF ON SKIN: Wash with plenty of water.
P501 Dispose of contents/container according to local regulations.

202 Daniel Zenker Drive
Big Flats, New York 14814 USA


Tubeless Valve
  • is also suitable for converting standard rims to tubeless
  • removable valve core facilitates the use of sealants or valve adapters

Rim Tape:
  • can be used with ZTR-rims in order to make them airtight or as a light rim tape in every rim
  • one roll is sufficient for 5 x 26" -, 4 x 29" - or 2 x road bike rims (2 layers)

Tyre Sealant:
  • finest crystals close holes up to 6 mm in size immediately and permanently
  • durability of the sealant in the tyre is 2 - 7 months
-sealant works down to -30°C


21 mm:
Length x Width:
9.2 m x 21 mm
Manufacturer Numbers:
AS0030 (rim tape) + AS0018 (valves) + ST0068 (sealant)

25 mm:
Length x Width:
9.2 m / 25 mm
Manufacturer Numbers:
AS0033 (rim tape) + AS0018 (valves) + ST0068 (sealant)

27 mm:
Length x Width:
9.2 m / 27 mm
Manufacturer Numbers:
AS0083 (rim tape) + AS0018 (valves) + ST0068 (sealant)


  • 1 x roll of NoTubes Stan's Yellow rim tape, 9.2 m
  • 2 x NoTubes Universal Mountain tubeless valves
  • 1 x NoTubes tyre sealant, 473 ml

  • 100 day return period
  • Online since 1998
  • Trusted Shop 4.89 / 5.00


  • universal/21 mm, out of stock
  • universal/25 mm, out of stock
  • universal/27 mm, out of stock

Customer Reviews (3)


Customer Reviews (3)


Give us your opinion on this product.

by Horst M. on 31.08.2022
verified purchase
item: universal/27 mm

Ein Ventil war bereits nach 6 Monaten mit einer Bontrager-Felge undicht, weil as MAterial derBelastung nicht mehr standhielt.

Is this review helpful?
by Sven R. on 13.04.2019
verified purchase
item: universal/25 mm

Tut was es soll ;-). Hält lange dicht.

Is this review helpful?
by Michael B. on 31.05.2018
verified purchase
item: universal/27 mm

Hallo, absolutes Top Produkt. Hab aus meinen tube Felgen tubeless Felgen gemacht.
Der erste Eindruck nach 2 Tagen ist top.
Nach einem Tag nochmal kurz Nachpumpen und alles ist Top.
Es wird nicht zu viel versprochen.
Es schließt kleine im Schlauch vorhande Löcher, bessere Beschleunigung und man rollt einfach besser.

Von mir eine Kaufempfehlung!!!

Is this review helpful?

Give us your opinion on this product.