The not-so-minor details
Fresh offering from a very credible brand.
Tuneable air pressure chambers.
No quick release axle.
Öhlins entering the hotly contested mountain bike suspension fork market is great news, but why have we had to wait this long?
Their distinctive gold and yellow rear shocks have been around for a while as stock items on big travel Specialized bikes, and for 2016 the collaboration between the Swedish suspension stars Öhlins and Specialized continues with the release of a new 29er trail fork – the RXF34 – soon to be available through Specialized dealers.
Öhlins are well-represented in the motorsport realm, famed for being the type of brand that don’t pay athletes to use their products but still see top Moto GP using their gear. Here’s a little more on the brand – Öhlins history.
There’s an air of ambiguity and respect around this brand due to their high reputation, hence we are floored to have one fork to review so let’s take a look at some of the unique features before fitting to our Specialized Camber 29er for a test run.
From Specialized: “Partnering with a company like Öhlins – the world leader in motorsports suspension – means we get the pinnacle of shock design, tuned specifically for a Specialized bike, like a Demo or Enduro. These shocks have so much traction and control that they change the way you ride, while putting a bigger grin on your face – and a larger gap between you and your buddies. Over the past few years, Öhlins has been hard at work bringing their first trail fork to market, the RXF 34. The first trail fork to feature a twin-tube design, it has everything you love about their TTX rear shocks, only it now goes on the front of your bike.
We gave a helping hand to the development by testing and providing feedback on our Camber, Stumpjumper FSR, and Enduro platforms. The key to this amazing handling fork is having parallel and separated oil flow to control the pressure levels, ensuring initial smoothness while staying high in the travel with excellent bump absorption, traction, and stability – all hallmarks of the twin-tube design. The RXF also has three air chambers; two positive and one negative. This allows the shape of the spring force to be adjusted by the rider, such as increasing sensitivity without bottoming out.
Bringing it all together is a unique forged “unicrown” for the highest stiffness and tire control with less chassis flex. The result is a 34mm fork that’s more rigid than other brands’ 35mm forks, and it’s comparable with a 36mm fork.”
- 120, 140 & 160mm travel options for 29-inch wheels
- 34mm stanchion tubes
- 15mm through axle
- TTX Damping technology by Öhlins
- Three air chamber system, two positive and one negative
- External rebound adjustment
- High and low speed external compression adjustment
- Forged unicrown
- Low friction seals and bushings
Chassis: The most striking feature of the chassis is the one-piece crown and steerer, not a common sight (X-Fusion are another MTB fork brand to do a similar one-piece assembly) and it’s said to offer comparable stiffness to a 36mm leg fork, even with its 34mm legs.
The RXF34 is 29er only at this stage but we bet a 27.5″ version won’t be too far off. The axle is 15mm with no quick release, rather it is secured via a 5mm allen key.
Fork weight is 2.07kg.
TTX Damping Technology: Since 2006 across all sorts of suspension products, Öhlins uses two individual tubes for each rebound and compression dampers to help reduce the oil pressure inside the fork. This is said to increase sensitivity whilst remaining supportive.
Three air chamber spring control: The RXF34 uses three air chambers for a very tuneable ride feel. Two positive air chambers let you tune the progressiveness of the fork, similar to fitting a Bottomless Token into a RockShox fork.
Setup goes like this; start with inflating the main air chamber on top of the fork to your weight, and then inflate the third chamber on the bottom of the fork to your desired rate of progression and feel. Then you’re able to tune the two air chambers according to your bottom out preference and sensitivity.
High and low speed compression adjustments: There is external high and low speed compression adjustability, and rebound control.
We are yet to confirm Australian retail pricing, but if the USD $1150 is a guide they look to be in line with the top offerings from FOX, RockShox and DVO and available from Specialized dealers.