Frame
Lightweight, road-smoothing hydroformed aluminum frame. The S40 recumbent road bike's wheelbase, trail, and head-tube angle deliver smooth handling, natural cornering and a responsive ride whether you are descending at top speed or navigating twisting back roads.
Front Triangle
The famously stiff patented drive system that vaults Cruzbike racers to records and wins, powers the S40 recumbent road bike. It shares the stiff, efficient drive geometry of traditional road bikes and transforms performance cycling technology into an incredibly fun, liberating cycling experience. It also makes Cruzbikes the fastest-climbing recumbent bike in the world.
This patented drive system not only frees us from the long, inefficient chains and special parts fixed-boom recumbent bikes require, it links the upper and lower body across the drive train as it rotates around the axis of the head tube. This linkage allows Cruzbike recumbent bike riders to increase power when climbing or sprinting by engaging the upper body in much the same way professional cyclists do when they climb or sprint on traditional road bikes.
Seat-to-Frame-to-Drive Connection
The Cruzbike S40's carbon fiber seat fits the curve of the frame so that no watt is wasted. As you press your back into the frame, you engage your whole body through the handlebar and cranks. Energy surges through the drive system and powers the bike forward, leaping up hills or accelerating into a sprint.
Fork
The 2021 Cruzbike S40 fork is designed to accommodate a range of setups from fast endurance road to plush Roubaix-style adventure with beefier tires. Plus clearance at the crown for fenders and wide tires is massively improved on the 2021 S40. The product team chose the tough, versatile Maxxis Re-Fuse 700x32c tire for the S40 Complete 2021 for its versatility and performance so you can ride whatever road is calling your name, day after day.
Racks and Bosses
The Cruzbike S40 is the machine for fast commuting, multi-day rides, brevets and tours. Possibilities abound when your recumbent bike is fast, light, comfortable and ready to be outfitted for the demands of your cycling ambitions. The frame boasts threaded mount points for racks, panniers, lights, fenders and hydration.
Compatibility Notes
BB shell: English Thread 68mm
Front derailleur: Braze-on mount
Brakes: Flat mount
Brake adapters: 160/200 size front and rear for 160mm rotors (this will be brand dependent).
Hub spacing: the front fork is compatible with standard 142 12mm thru axle. The rear dropout is compatible with standard 100 mm hubs.
Hydraulic disc brakes: The S40 2021 Frameset can be outfitted with hydraulic disc brakes using readily available long brake line kits. The exact proper length will be different for each bike/owner due to handlebar fit variations. Work with your local bike shop on this.
S40 Geometry
| Wheelbase |
1130.3 mm |
44.5 in |
| Chainstay length - standard |
450 mm |
17.75 in |
| Rake (front fork offset) |
30 mm |
1.2 in |
| Head tube angle (steering axis) |
71 degrees |
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| Trail |
91.44 mm |
3.6 in |
| Backrest angle |
40 degrees |
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| Length of Bike (varies by adjustment and chainstay length) |
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| Seat Height (low point) |
609.6mm |
24 in |
| BB Height (varies by adjustment) |
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Fit
The S40 fits riders with an X-seam between 35 inches and 48 inches (about 5'2" to 6'5" body height). Check out the 2021 S40 Fit video here and head over to our Fit page for more great resources on fit.
Options
S40 FRAMESET: The S40 Frameset includes the frame, front triangle, optional front derailleur holder stalk, carbon fiber seat and cushion, headrest and cushion, custom-designed handlebar and grip tape. Work with your local bike mechanic to craft the perfect build. Instructions can downloaded from the S40 Owner's Resources on this page. The S40 Frameset ships worldwide.
