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New Öhlins RXC34 m.1 fork and TXCAir shock work together for superior handling

Sep 19, 2023

XC racing fork and shock complete Öhlins’ suspension line-up

This competition is now closed

By Tom Law

Published: June 8, 2023 at 1:00 pm

Öhlins has announced the release of its new RXC34 m.1 fork and TXCAir shock. It means the brand finally has a thoroughbred cross-country race product to complete its line-up.

Building on the racing success of its downhill and enduro forks, the components in the new XC range have been designed to work together. They’re claimed to boast superior handling and precise steering to enable riders to push their limits on ever more technical XCO World Cup tracks with the latest XC race bikes.

The new suspension units feature several new technologies, including serial shim stacks, an updated two-chamber air-spring design and the option of a carbon CSU (crown steerer unit).

They also build on the success of Öhlins’ existing line-up, with proven twin-tube technology featuring in the TXCAir shock. The fork has the brand's signature stiff chassis and floating axle, combined with a lightweight, single-tube OTX14 damper.

Combined with its partnership with Team BMC Racing, it's clear these new products have both eyes fixed on the 2024 Paris Olympics, too.

The new RXC34 m.1 fork takes the same basic chassis of the RXF34 m.2 downcountry/trail fork and optimises it for XC racing.

It retains the chunky lower legs with the brand's signature floating axle and broad 34mm stanchions. However, the rest of the suspension fork has been reworked to reduce weight and improve efficiency, making it better suited to racing.

The air spring has been redesigned with an updated two-chamber design. These are adjusted via a single air valve, but both the positive and negative chambers can be adjusted with volume spacers.

The positive chamber can take up to five spacers to adjust progressivity depending on the travel choice, while uniquely, the negative chamber can also be adjusted with up to seven spacers to adjust the initial feel of the fork over small bumps.

Riders can choose between 110 or 120mm travel on both the carbon or alloy CSU options. Both have the ability to be upped to 130mm with a separate aftermarket air spring.

The RXC34 m.1 carbon fork uses a new one-piece carbon fibre CSU to drop a claimed 102g over the alloy version.

Riders can also opt for a fixed 100mm-travel ‘race’ fork, which drops a further 20g. An alloy CSU version, also with 100mm travel, will be available in future and 130mm incarnations of the fork will be available for OEM manufacturers.

The result is a fork that's right in the ballpark of the current 35mm RockShox SID, with a weight of 1,496g for the 110/120mm variant. The cheaper alloy fork, which shares an identical chassis to the RFX34 m.2, comes in at 1,598g.

Also new for the RXC34 m.1 is the OTX14 damper.

It has rearranged shim stacks to control the oil flow between the damping circuits, which Öhlins claims have been optimised to help the fork absorb the terrain efficiently, as well as maintaining rider momentum. These are both key attributes for XC racing success.

Öhlins says it is smaller and lighter than the OTX18 damper found in the RXF34 m.2 and features three ride modes: open, pedal and lockout.

These have been developed and tested to save crucial seconds on the race track.

For riders who want to maximise those saved seconds, there is the option of a remote lockout that twins with the remote versions of the TXCAir shocks.

If you’re less worried about seconds saved and want more adjustment, the crown-top manually adjusted versions have 12 clicks of low-speed compression adjustment for the open mode, giving you more tuning options compared to the fixed open setting of the remote variant.

Both manual and remote versions have 12 clicks of rebound adjustment at the bottom of the right fork leg.

Because the basic chassis is shared with the RXF34 m.2, the OTX14 damper and new air spring are backwards compatible between the two. If you wanted, you could fit the even more adjustable OTX18 damper into the RXC34 m.1.

Alongside the RXC34 m.1 fork, Öhlins has developed two TXCAir shocks, the TXC1 and TXC2.

The TXC1 is lighter at a claimed 245g thanks to the slimmer (than the TXC2) body and air can, which also makes it more progressive. The TXC2, on the other hand, has a bigger body and air can in order to make it a little more versatile and more resistant to heat build-up.

Both share the same twin-tube damper design, with three ride modes to match up with the fork. As with the fork, the manually adjusted version of the TXC2Air gets 16 clicks of low-speed compression adjustment for the open setting. The remote versions do without this additional adjustment.

Also like the fork, the shocks have 12 clicks of rebound adjustment, though the rebound dial requires a 3mm Allen key to make any changes, rather than being tool-free.

To twin the remote fork and shock together, Öhlins has developed a handlebar-mounted remote to control the settings on the fly. Unlike Scott's similar TwinLoc system, the Öhlins remote has a separate mount for a dropper post, to which you can mount your own dropper lever.

Both shocks can be adjusted easily with spacers for air can volume and shock stroke. Öhlins says both can be done without removing the shock from the bike, in order to make it as user-friendly as possible.

I attended the launch of the RXC34 m.1 and TXCAir at Öhlins’ headquarters in Sweden and rode them at the nearby Sigtuna Bike Arena's excellent XCO course. This provided a wide range of riding despite its lack of elevation.

Most of the day was spent on a Specialized Epic EVO, equipped with the RXC34 m.1 Carbon fork and TXC2Air shock, with both twinned to Öhlins’ remote lockout lever.

I started with the fork and shock at 83 and 200psi respectively for my 80kg weight and set the rebound on both to six clicks from closed, right in the middle of the range.

Initial impressions of the fork were very impressive. Right from the off, it became clear sharing the lower legs with the RXF34 m.2 gives it a very stiff and precise feel. Even when launching off drops and into rock gardens, it remained bang on track and pointing exactly where I wanted it.

Damping control and comfort were also excellent. The fork was supple enough over smaller bumps and had plenty of support in the turns or when I got a little nose-heavy on some of the course's awkward low-speed drops.

The TXC2Air shock took a little more tinkering. On the first loop, it felt as if it was riding a little deep in its stroke on the rougher, flatter sections of the course, despite a modest 28 per cent sag.

It felt impressive pointed downhill, with a wonderfully supple feel. However, I was getting a lot of pedal strikes on the many rock-infested climbs and flat pedally sections and it didn't feel the peppiest under power.

Because I didn't want to lose the excellent small-bump compliance and was short on time to experiment with the shock's volume spacers, I instead went two clicks faster on the rebound to see if it would help the bike ride a little higher and not pack down on smaller, chattery hits.

This had the desired effect and the shock felt livelier, sat higher and was responding more like I wanted it to.

Given I was riding an unfamiliar bike on trails I’d never ridden before, it's impossible to give a complete review of how the fork and shock performed. I’m particularly keen to try the non-remote versions to see how the additional low-speed compression adjustment can alter the ride.

Even from a short three-hour test ride though, initial impressions are excellent. It's incredible that modern XC forks and shocks are so capable, performing way beyond the XC suspension of yesteryear.

I’m certainly looking forward to spending more time on them in the coming months, once we have them for longer-term testing. Stay tuned for a full review in the coming months.

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MTB presenter

Tom Law is a presenter and writer for the BikeRadar YouTube channel. At a young age, Tom was thrown into the world of cross-country mountain biking by his amateur-racing dad. By the age of 13, he had been bitten by the bug himself. A brief foray into racing led Tom to discover his love of big natural rides and flowing trail centre descents, a very weird appreciation for technical climbs and an interest in the latest bike tech. A self-confessed bike dork, Tom's near 10 years of experience working in retail – from the shop floor through to website and marketing work – has given him a wide knowledge of all things two wheels. He's a big fan of mid-travel bikes that can do it all and is seemingly the only person on Earth who actually likes the term ‘downcountry’. When he's not standing in front of the camera, Tom can be found ripping his Transition Spur around the countryside of North Wales and the Midlands, or daydreaming about cars he’ll never be able to afford or fit a bike in.

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