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Externally adjustable OChain spotted on Loris Revelli’s Canyon Sender

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What looks to be an externally adjustable OChain Active Spider has broken cover in the pits at the final round of the 2022 Downhill World Cup in Val di Sole. A gander at Loris Revelli’s Instagram stories reveals the prototype being handed to him, with subsequent stories showing it installed on his Canyon Sender.

externally adjustable ochain active spider seen at val di sole world cup dh
The Italian translates to “”It is not a steak, but maybe it is worth the same”

A closer look at the new OChain reveals a large dial on the Active Spider, with markings indicating four possible settings: 4°, 6°, 9° and 12°.. We can’t quite make out which setting Loris has opted for.

Of course, it’s impossible to say exactly what’s going on inside the device but the current model contains an arrangement of springs and elastomers that work to dissociate drivetrain forces from suspension movement. The common terminology is pedal kickback, a sensation that can be felt at the pedals when chain growth resulting from suspension compression causes rearward rotation of the cranks.

matt stuttard polygon enduro bike ochain 6 degree with onyx instant engagement hub sprag clutch
The OChain has become a popular tool among DH World Cup riders and EWS riders alike – seen here on Matt Stuttard’s prototype Polygon enduro race bike

The device is able to eliminate a tuneable amount of pedal kickback by permitting rearward rotation of the chainring in isolation to the crank arms. I have considerable experience of the early version of the OChain Active Spider and can recommend it. It works as advertised and tangibly improved the ride feel of my Revel Rail in the 6° position, particularly in harsh braking scenarios. It is, however, a bit of a pain to re-assemble after switching out the internals for alternate elastomers, so an externally adjustable version would be a welcome upgrade.

You can follow Loris Revelli on Instagram here.


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1 year ago

How does it compare to the Williams Racing Products center hub decoupler?

1 year ago
Reply to  Chris DERMODY

I’ve not used the WRP decoupler but I’ve got a original Ochain.

Basically how the Ochain works is when the distance between the rear axle and bottom bracket increases it allows the chain to rotate backwards so the chain doesn’t restrict the suspension or effect the pedals.

The WRP moves the freehub from the hub to the bottom bracket and in doing so means if your moving the chain is always moving, even if your not peddling. While this system should eliminate pedal kickback like the Ochain there’s still a chance the chain can effect the suspension, especially in slow speed high compression situations. It also allows you to change gear whenever you are moving even if your not peddling which the Ochain doesn’t do.

Personally though the number of times I’ve got a shoelace or trouser leg stuck between my chain and chainring puts me off trying the WRP.

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