Manitou Jack dropper post

Despite it being new to the market,we’ve had three different examples of Manitou’s Jack post under testing for a couple of months now and, so far, it’s doing OK in normal conditions. The cable nipple hooks into the mechanism on the seatpost base for easy trimming at the lever end, but be careful not to strip the small cableclamp grub screw if you’re hamfisted. There’s currently only a vertical-action ‘universal’ remote available, but it’s reasonably light in leverage. Combined with the neat two-bolt head, it helps keep the post fairly light. The drop is smooth off the top, and return speed is prompt enough without being threatening.On really muddy, cold rides,we’ve had problems with ice sneaking past the seal and causing stickiness. While a clean and lube gets it going again quickly,we don’t know how this potential contamination will play out long-term. This is the only issue we’ve had, though, and it’s a reasonable price if it keeps on keeping on.

Weight 660g
Stroke 125, 150mm
Diameters 30.9, 31.6mm
Max length 460mm
Internal length 260mm

Price $450

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.

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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

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Cannondale Trail SL 29 SS

The fat aluminium tubes are a constrast to the skinny items seen elsewhere in the test, but this rigid Cannondale uses them to create one of the most old-school - and lightest - rides here.

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CANYON NERVE AL 8.0

S ince their entry into the UK market a few years ago, Canyon have made a name for themselves as purveyors of well-made bikes that exhibit often extraordinary value. The secret (or catch, depending on your point of view) is that the brand don’t have dealers – they ship bikes directly to your door.

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SKS Airbuster CO2 inflator

The alloy Airbuster has a large knob so you can regulate the flow of gas, a mechanical stop to prevent the cartridge being pierced in transit and a dust cap to keep the valve free of debris. While it works with Presta and Schrader valves, switching between them requires a fiddly change of the valve head. The thin rubber sleeve doesn’t provide much protection from cold spent canisters. You can’t insert much of the valve into the inflator head, so you have to be careful to avoid leaks. Price $33 w/16g cartridge

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All Arround MTB

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