Rocklink is Cotic's current full-suspension linkage, developed from their proven droplink design. Despite it's different shock location, it shares a great deal of the pedalling feel and kinematics of droplink, because that was a great design that we had refined for over a decade.
Rocklink's main development driver was for the Rocket ebike in order for the shock to avoid the battery that was installed on the down tube, whilst preserving all the feel and performance we love from droplink bikes. On unpowered regular bikes, that brings packaging benefits like an open front triangle for easy bottle cage and tool mounting, and a straight seat tube for larger dropper insertion.
Just like droplink before it, Rocklink delivers calm, controlled rear travel with a traction-rich, supportive progression rate. The anti-squat is a little below 100% for the climbing gear so you get traction, not wheelslip.
Anti-rise sits at 100% across the whole range of travel giving very consistent, neutral braking feel.
New for Rocklink is the rocker design and trunnion shock with our unique Floating Pin trunnion mount. Trunnion shocks are shorter than conventional shocks, which means we can reduce standover height, particularly on the smaller sizes. However the standard trunnion shock mounting isn't great. It uses under spec'd bearings and it solidly mounts the shock which puts it under loads when the frame is flexing whilst riding.
Our superior Floating Pin design uses ultra high load spec needle roller bearings and stainless steel pins that have up to 3mm of lateral 'float' in the system so the shock can never bind and never be out of alignment. This, plus the added sensitivity of the bearings brings extra grip and plushness to the suspension, and longer life to your shock.
For the design Rocklink replaced, see Droplink Suspension.