Tubolight – Homepage
*every size available in all wheel diameters
The 32mm size, thanks to it’s lightness and moderate influence on the tire, is suited for everyone who prefers the feeling of an air-inflated tire, but still needs protection from pinch flats and tire burps.
Rim protection and runflat performance are not comparable to bigger sizes, yet remain higher than devices weighting twice as much.
Best applications: Marathon, fast Cross Country, Stage Races, trail.
This size is well suited for Marathon, because of its very light weight.
It can’t be mounted on rims wider than 35mm (external width), as rim protection would be limited.
The 42mm size gives the right balance between support, protection and weight.
Best applications: all-round Cross country, technical Marathon, trail, enduro and downhill.
This is the go-to size on all tires between 2.00” and 2.30”, paired with rims between 23mm and 30mm.
For gravity, this size can be used if a rider prefers less lateral support, especially when mounted on stiff downhill casings.
The 52mm size size is best suited for aggressive riding or very rough terrain, as it gives better stability, better protection, better runflat performance.
Best applications: world cup level Cross Country racing, Enduro, Downhill, semi-plus.
For wide rims and tires between 2.30” and 2.50”, this size is always suggested, at least on the rear tire.
For 2.60” tires, the 52mm size is suggested both in the front and rear tire.
Different tire manufacturers may measure tire size differently, so please measure the effective width and height of a tire to be sure Tubolight size is right.
The 52mm size for cross-country usage is custom made only, as it needs precise measurements of rim shape to perform correctly. Internal rim width must be at least of 28mm and only some tires can be used.
©Kéno Derleyn – @COMMENCAL_VALLNORD
Many say a tubular shape is not the best for an inner tire insert, and I completely agree.
The fact is, once fitted on the rim, Tubolight takes the shape of the rim in the lower part, and an elliptical shape on the top.
This leads density of the material to become progressive, higher on the bottom, where the insert needs to secure tire beads and stabilize sidewalls, and lower on the top, for smoother shock absorption.
Compared to pre-shaped inserts, Tubolight compresses tire beads and sidewalls much stronger.
Furthermore, during installation there’s no need to “center” the insert onto the rim, once fitted it remains straight and falls inside tire beads.
Once mounted, let Tubolight sit overnight at slightly higher pressure than usual, in order to properly get the right shape.
Although lighter tires can be used, we don’t suggest the use of them.
Other manufacturers will suggest it, because they produce very heavy devices which compromise bike handling and speed. But, the result will be a lower overall flat protection compared to a heavier tire without any tire insert.
We prefer additional protection with minimum weight penalty, and that’s the reason why Tubolight gives the best overall protection/weight ratio.
Durability is affected by many factors, including size to inner tire volume, usual tire pressure, and runflat rides.
Tubolight is completely waterproof, doesn’t absorb sealant and keeps its performance even when slightly damaged or compressed.
There’s no risk to damage the insert when using tire plugs.
On hard usage, expect Tubolight to last as long as a medium compound tire.
Yes, Tubolight is compatible with all sealants.
Tire inflation is subjective and depends from many factors (tire size, casing suppleness, rim width, riding style etc..).
For this reason, it’s useless to give inflation suggestions, everyone needs to find HIS preferred inflation on different situations.