Ohlins RXF 36 120 Boost Fork - 29/27.5 Plus
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Given that Ohlins is so exclusive that it doesn’t even offer top moto athletes free gear, it's logical that its engineers created a design that's truly unique in the mountain bike field. The RXF 34 and RXF 36 are the only forks on the market to feature a twin tube damper, which separates the rebound and compression oil flow. Since the twin tube design lets the oil flow parallel and independently, the fork maintains optimal pressure at all times, riding higher with a smoother initial stroke. It maintains consistent, predictable small bump compliance across successive hits to leave you more in control of your lines and with more responsive traction.
The fork also includes an addition to its other leg, adding an extra positive chamber to the typical air spring loadout of one negative and one positive. The presence of two positive chambers means that the resistance can be dialed externally — yep, without internal spacers — to alter the compression curve, so the fork can be set to maintain that initial suppleness but ramp-up harder to avoid bottoming out on big hits. The RXF 36 climbs with confident traction but won't sell you out by diving on rowdy descents. Given the host of absurdly versatile all-mountain 29/27.5+ bikes we've been seeing unveiled over the past year, we suspect this added versatility in fork suspension will quickly become a necessary feature.
The RXF doesn't feature a proper lockout switch, but the high-speed compression adjustment will effectively smother travel when cranked all the way. It's also built with an integrated crown race, so the list of compatible headsets isn't as long as with forks that make you supply your own race. Given those limitations, lower headset bearings with a 40mm internal diameter (52mm external) and 45-degree bearing angle are the only compatible option.
- A new take on all-mountain fork suspension
- 120mm of travel to smooth out the bumps
- Twin tube damper separates rebound and compression oil flow
- Dual positive chambers allow external compression curve adjustment
- Compatible with 29-in and 27.5+ wheels
- Ohlins brings decades of moto sport expertise to the mountain bike world
- Item #OHL0018
- Q & A
I'm a bit confused by the headset compatibility. I'm looking at the Santa Cruz Tallboy, which requires the following type of headset: "
We use a headset generally referred to as "mixed tapered". This is a 44mm internal upper cup, with an external 49mm lower cup. The SHIS name is ZS44/28.6 EC49/40."
Will the Ohlins fork work with that?
Yes, but it depends on the headset you choose. The ID for the HT will be identical, but the bearings Different companies use varies since they make the corresponding races. 45* is the most common though.