A brand-new set of handmade FMB tubeless-ready TLR roadway bike tires is the current indication that possibly going tubeless does not need a sacrifice in efficiency or ride quality relative to traditional race tubulars. These brand-new flexible tubeless-ready clincher tires made completely in a little workshop in northern France are in the meantime restricted to simply a number of all-rounder Classics-ready roadway tires– the Flanders & & Cobbles– however mean a possible more comprehensive tubeless offering from the premium tiremaker.

FMB Patches 29mm tubeless-ready TLR open tubular roadway tires

FMB Cobbles tubeless-ready TLR 29mm tire, handmade-in-France supple open-tubular tubeless clincher road bike tires

French handmade tire maker FMB is best understood for producing race-ready tubulars and providing them to experts riding the Spring Classics or racing cyclocross. However currently in 2015 they exposed brand-new open tubulars, i.e. a clincher tire alternative that shared the exact same great 330tpi polycotton building and construction as their professional tubulars. Meant to make the buttery-smooth flight and enhanced grip of premium handmade tire available without the trouble of gluing tubulars, we currently thought that handmade tubeless-ready variations were currently in the works.

Tech information

FMB Cobbles tubeless-ready TLR 29mm tire, handmade-in-France supple open-tubular tubeless clincher road bike tire in-hand

Like those previous non-tubeless clinchers, these 2 brand-new bigger volume TLR tubeless-ready Spring Classics design roadway tires– the 26mm Flanders & & 29mm Cobbles– function natural latex AND sealant-impregnated housings for toughness & & air retention.

The TLR tires include stretch-resistant PBO Zylon beads (comparable however greater strength than aramids) that do not have a popular blocky shape like a lot of vulcanized tires. However FMB states they work with connected or hookless tubeless rims, simply not sharp-edged rims like ENVE’s. (I personally hesitate to install these tires on hookless rims due to their apparently looser than typical fit.)

FMB Cobbles tubeless-ready TLR 29mm tire, handmade-in-France fabrique-en-France herringbone tread pattern The tubeless tires utilize FMB’s basic in-house made herringbone rubber tread, formed from a Grip+ rubber substance that declares reputable flat defense. This is a race-oriented tire though, and while FMB rates it for long endurance trips, cobblestone racing, and even training on bad roadways, it does not consist of any extra anti-puncture inserts.

These tires make the mindful option of focusing on speed, convenience, and low-rolling resistance over supreme flat defense. However that’s likewise among the primary factors of including tubeless-ready compatibility, to secure versus the more typical little leaks.

Prices, choices, genuine weights & & genuine widths

FMB Cobbles tubeless-ready TLR 29mm tire, handmade-in-France supple open-tubular tubeless clincher road bike tires, 300g average actual weight

FMB shares a couple various weight claims for their open tubulars, however it appears like the somewhat much heavier figures on their site are for the brand-new tubeless-ready TLR roadway tires -230 g for Flanders and 270g for Cobbles. ( Their internally distributed tech sheet notes the tube-type Flanders at 220g and Patches at 245g.) The tubeless-ready TLR tires likewise are simply a bit more costly.

FMB Flanders TLR & & FMB Cobbles TLR tires both formally retail for 60EUR about 5EUR more than their tube-type equivalents (although they cost a couple of euros less straight from the FMB webshop.)

FMB Cobbles tubeless-ready TLR 29mm tire, handmade-in-France supple open-tubular tubeless clincher road bike tires, 31mm actual width on 20mm internal rim

The 2 Cobbles TLR 29 samples we got in to check weighed in at approximately 300g (295g & & 305g) with a 10 gram difference that appears sensible based upon their handcrafted building and construction. That’s still 30g over FMB’s claim, likely due to their additional tubeless sealing procedure vs. the basic tube-type clincher tires?

Our test Patches TLR 29 tires likewise really distributed a bit broader, at 30.8 mm when aired up completely to 6bar/87psi set up on DT Swiss ARC1100 wheels with a 20mm internal connected tubeless rim profile.

Next actions for FMB TLR tubeless tires

FMB Pro Carbon tubeless-ready TLR 26mm road tire handmade-in-France
c. FMB

In the meantime, FMB tubeless-ready TLR is formally restricted to the Flanders & & Cobbles roadway tires. We have actually currently seen TLR variations of FMB’s all-cotton 26mm Pro Carbon, however they state that production TLR tubeless tires will all utilize the more powerful polycotton mix that is similarly as flexible, while likewise being more resilient.

FMB has actually guaranteed us that all of their open tubulars will quickly be provided in the brand-new tubeless-ready building and construction, consisting of cyclocross! Obviously just the 24.5 mm Racing roadway tire will not get a TLR variation.

Impressions– FMB Patches 29 TLR tubeless setup

FMB Cobbles tubeless-ready TLR 29mm tire, handmade-in-France supple open-tubular tubeless clincher road bike tires, on Campagnolo Bora WTO 60 DB wheel

What are our very first ideas of setting them up tubeless and riding with them? This is where it gets difficult. If you desire a simple & & problem-free roadway tubeless setup, you are most likely finest to stick to traditional vulcanized tubeless-ready tires. There are a lot of excellent efficiency choices from the similarity Schwalbe, Continental, Pirelli, Goodyear, and more … simply among others. However you didn’t read this far to ride on stiff tires, you’re trying to find that unrivaled fast-rolling, tarmac-smoothing flight quality of handmade tubulars … however without huffing glue fumes or scraping damaged tires off your rims.

FMB Cobbles tubeless-ready TLR 29mm tire, handmade-in-France supple open-tubular tubeless clincher road bike tires

So, buckle up for a harder set up. These tires feel soft in your hands, and as soon as you go to put them on the rims. FMB states that they do not fit ultra-tight, since they do not desire you to harm them installing them to your rims with tire levers. That likewise indicates that they probably will not air up and seal on your tubeless wheels without an air compressor.

Out of 4 connected wheelsets (alloy & & carbon) that I had actually formerly set up traditional tubeless tires with a high-volume flooring pump, just on the brand-new DT ARCs might I air up the FMB Patches TLRs WITH a Schwalbe/Airshot Tire Booster– none with the flooring pump alone.

A high-flow, high-pressure air compressor seated a tire on 3 of those wheelsets without sealant (include Hunt 4Season & & Campagnolo Bora), one broader set not even with the compressor (Hunt Gravel). Including sealant throughout the preliminary bead seat procedure eventually made the DT setup simpler, however all of us understand how untidy that can get.

The takeaway, your setup outcomes might differ.

FMB Cobbles tubeless-ready TLR 29mm tire, handmade-in-France supple open-tubular tubeless clincher road bike tires, on DT Swiss ARC1100 62mm wheels

So is it worth it?

That’s most likely still approximately you to choose. I have actually aired them up on the DT wheels, sealed with Stan’s, and just began to ride them a bit. The flight is terrific– quick and smooth, as hoped. Like the early tubeless Vittoria Corsa Speed tires, it appears the FMBs do lose some pressure with time like tubulars, perhaps even more when not ridden for a number of days.

However up until now, cold & & damp winter season weather condition has actually kept me more on tracks & & gravel, instead of long trips on gritted & & salted roadways recently. So I’ll need to wait a month or 2 prior to I can provide a real-world evaluation on how the FMB TLR tires carry out with time.

FM-Boyaux. cc

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