Our patented Fourby4 suspension is designed to maximize rear shock performance and available traction in every situation, no matter how crazy things get. It reduces brake “squat” and enables your wheel to maintain contact with the ground to maximize your speed through the most challenging terrain. And our legendary pedalling traction ensures performance - even in the jank - so you can get on the gas when you need to eliminate another second off your time.
![](http://knollybikes.com/cdn/shop/files/fourby4-03.jpg?v=1624415126&width=2500)
157Trail
We feature 157Trail rear hub spacing which uses 157 hubs with 73mm BB shells. This spacing provides the most options for tire size and can easily clear tire widths up to 2.6. With 157Trail, heel clearance is exceptional and chainring clearance remains huge at 36T.
![](http://knollybikes.com/cdn/shop/files/157trail-01.jpg?v=1624415126&width=1642)
![](http://knollybikes.com/cdn/shop/files/osd-01.jpg?v=1624415128&width=5360)
OSD
Our patented offset straight seat tube design (OSD) allows our riders to transition effectively between a highly efficient pedaling position and the “attack position” required for aggressive riding. It enables the rider to drop the saddle on the downs and is critical in allowing maximum rear wheel travel while keeping the back wheel away from the seat tube under full compression. This design allows us to run 200+mm dropper posts because our seat tubes are straight and un-interrupted.
Human Centric Sizing
We have always believed in human centric sizing and design our bikes to deliver optimal reach, standover height and geometry for a broad range of riders.
![](http://knollybikes.com/cdn/shop/files/knation-01.jpg?v=1624415127&width=2500)