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Description
Making use of the lightweight Mahle ebikemotion X35+ motor assistance unit and blending it with a rugged, efficient and comfortable frameset, the Cannondale Topstone Neo SL 1 Disc Electric Gravel Bike is ready and set to explore long into the wilderness across the most challenging terrain.
The Mahle ebikemotion X35+ rear hub motor is one of the lightest assistance units available that can also boast exceptional reliability and power. Producing up to 250 watts of assistance, this motor helps the rider up sharp hills, across enduring tracks and when battling against strong headwinds. Partnering the motor, the X35 battery lasts for up to 47 miles, is recharged from flat in just 3.5 hours and is concealed within the frame’s downtube to afford a super-clean silhouette. The system is controlled by the iWoc ONE unit that is neatly integrated into the top tube. This unit is intuitive in use, adjusts between three motor assistance levels and provides visual feedback on the amount of battery charge remaining.
This bike has an electric assisted speed limit of 15.5 mph / 25 km/h.
The aluminium frame and carbon fork combine to give a reactive, lively and smooth ride and donate plenty of mounting points for bottles, racks and luggage. The frameset is realised with an endurance inspired fit that balances comfort and speed and grants enough clearance for plush and grippy 42mm wide tyres.
Strong wheels handle rough terrain with aplomb, and Shimano 11-speed gears shift crisply across a wide range of ratios. Hydraulic disc brakes are added to the build, with these providing excellent stopping power in all weather conditions.
Browse our range of Cannondale electric gravel bikes today.
Frame | Cannondale SmartForm C2 Alloy, 135mm bolt-on drop out, tapered headtube, flat mount disc, multiple gear and bottle mounts |
Fork | Cannondale Full Carbon, 1-1/8" to 1.5" steerer, 55mm OutFront offset, flat mount disc, internal routing, 12x100mm speed release thru-axle |
Headset | Cannondale integrated, 1.5" lower to 1-1/8" upper, 25mm alloy top cap |
Bottom Bracket | Shimano BSA Sealed |
Stem | Cannondale 3, 6061 alloy, 31.8, 7° rise |
Handlebar | Cannondale 3, butted 6061 alloy, 16° flare drop |
Bar Tape | Cannondale bar tape, 3.5mm thickness |
Front Brake | Shimano GRX 400 hydraulic disc, 160mm RT56 rotor |
Rear Brake | Shimano GRX 400 hydraulic disc, 160mm RT56 rotor |
Brake Levers | Shimano GRX 600 hydraulic disc |
Rear Derailleur | Shimano GRX 812, Shadow RD+, 11-speed |
Shift Levers | Shimano GRX 600, 1 x 11-speed |
Chain | Shimano HG601, 11-speed |
Cassette | Shimano SLX, 11-42, 11-speed |
Crankset | Shimano GRX 600, 40T |
Front Wheel | Rim - Cannondale Disc 700c , double wall, tubeless-ready 28h / Hub - Formula CRX-512, 12x100mm thru-axle / Spokes - stainless steel, 13g |
Rear Wheel | Rim - Cannondale Disc 700c, double wall, tubeless-ready 32h / Hub - Mahle ebikeMotion X35+ / Spokes - stainless steel, 13g |
Front Tyre | WTB Resolute TCS, 700 x 42c, tubeless-ready clincher |
Rear Tyre | WTB Resolute TCS, 700 x 42c, tubeless-ready clincher |
Saddle | Fabric Scoop Shallow Sport, steel rails |
Seatpost | Promax SP-2032, carbon, 27.2 |
Pedals | Available to be purchased separately |
Chian Device | Promax SP-2032, carbon, 27.2 |
Accessories | Cannondale wheel sensor |
Motor | Mahle ebikemotion X35 250W |
Ui/Remote | Mahle ebikemotion iWoc ONE integrated controller |
Battery | Mahle ebikemotion X35 250Wh |
Charger | Mahle ebikemotion X35 |
Range | 47 miles / 75km (depending on rider weight, conditions and power assist level) |
Charge time | 3.5 hours from flat |
Electric assisted speed limit | 15.5 mph / 25 km/h |
All our bikes are fully built, checked, tuned and tested by our Cytech qualified mechanics and then securely packaged, ready for delivery. All you have to do is add the pedals (if included), attach the handlebars to the stem and tighten them following the included detailed instructions or by watching our video and using the provided FREE tools. Visit our Bike Assembly page to see how you assemble your new bike once you receive it.
All bikes collected from our shop, are built, tested and ready to ride. For hassle-free home delivery and bike set-up from a qualified mechanic use our Premier Delivery Service.
Please note, occasionally, manufacturers may change the specification without notice. Bicycles do not come with pedals unless otherwise specified. Bikes ordered for delivery will not arrive with the pedals installed, please refer to the owners manual and pedal installation guides provided for guidance. We do not install accessories to bikes, including mudguards. Bikes ordered for delivery that have tubeless compatible tyres and rims will arrive with inner tubes installed or with tubeless valves installed, this will be brand dependent. Sealant is available to be purchased separately.
If you require any assistance please contact our Customer Care team.
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Important Update for Our Canadian Customers
We regret to inform you that shopping on Sigma Sports is temporarily unavailable for customers based in Canada.
We understand how disappointing this may be and sincerely apologize for any inconvenience caused. Please rest assured that we are actively exploring solutions to resume service and find the best way to support our Canadian community.
We appreciate your patience and understanding during this time, and we look forward to welcoming you back as soon as possible.
If you require any further assistance, please reach out to the customer services team
— The Sigma Sports Team