Skip to main content

Bontrager TLR Flash Charger track pump


Bontager's flash charger is a unique pump and compressor aimed at tubeless tyre users but its combined design is its weakness as well as its strength.

On the plus side, the big tank contains enough air to pop every tubeless or tubeless-ready tyre and rim combo we’ve tried into place as soon as we’ve thrown the big red pressure-dump switch. Even if it hasn’t inflated it fully in one hit, a quick burst of pumping has sealed the deal. While it’s the same price as a budget electric compressor, you can use it at trailheads, in race pits or anywhere else, and though it’s heavy and bulky compared to a conventional pump, the one-piece construction makes it relatively simple to transport.

The low-volume stroke means it takes ages to get the tank up to pressure though. Because there’s no way of separating the pump and tank, if you accidentally discharge the tank by leaving the dump valve open when you release the valve head, you have to recharge the whole system again – even if you just want to top up an already inflated tyre. The plastic hose, head and attachments are disappointing for 150$ too, and more vulnerable to accidental damage than metal fixtures. While spares are available, the combo design means that if there’s a problem with the pump the compressor tank is useless, and vice versa.

A smart idea for tubeless tyre users, but we expect better durability and build quality for 150$

Price 150$

Popular posts from this blog

Merida Big Nine 100

Wit the bikes swapped over, we head out on the same loop again, this time on the 29in Big Nine 100. Whereas the Big Seven was snappy off the line, the 29er takes a couple more pedal strokes to get up to speed. That said, once it's up there, it's easy to keep the big wheels rolling, allowing us to cover ground with ease. The fire road is at times a little rough, and the bigger wheels roll over the imperfections so we barely notice them.

Chromag HiFi 35 (50mm) stem

This is a seriously solid stem. Chromag use 5mm Allen bolts throughout, which makes it that bit easier to fit because you don’t have to swap tools. Once torqued up to the recommended 6-8Nm, it clamps both steerer and bar solidly, with no appreciable flex. We couldn’t get it to twist on the steerer, either in our static test or when riding. It’s also available in a 35mm length and three other colours. At 204g the HiFi is the heaviest stem on test by some margin, despite being one of the more expensive offerings here. Price $112

KONA SHRED

With a reputation for no-nonsense ruggedness and a background in the always progressive and punishing riding of Canada, Kona have been building hardcore hardtails for longer than almost anyone else. The Shred is the most expensive bike on test but it’s a proper trail tank.

COMMENCAL EL CAMINO 3

Commencal are going from strength to strength at the moment and they’ve taken their tough trail hardtail bang up to date with 650b wheels. With its skinny rims, crankset and fork, the El Camino certainly isn’t perfect and it’s the least hardcore bike here. The handling, smoothness, speed and all-round agility of the basic bike still make it a real blast for technical trail riding though, and it’s a great base for upgrading over time.

ENVE M50 29" Wheels

Utah based company ENVE have been making drool-worthy carbon components for some years now. Despite the fact that carbon rims are becoming more and more common on mountain bikes these days, you can guarantee that ENVE wheels will be a talking point when someone is eyeing off a steed. Instantly, the big bold logos on each rim scream "fast", "light" and to some extent, "expensive" The kids call this 'bling'.