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Description
Marin Sausalito E1 ST Bosch 650b
You want a bike that makes daily riding easy. The Sausalito ST lets you move with less fuss. Mount and dismount in a single, smooth motion. Carry bags and gear without losing your balance. It feels steady underfoot and forgiving at low speeds. The assist pushes when you need it. The brakes bite when you ask them to. This is a bike built to keep you rolling, whatever the day asks of you.
Why you'll love it:
Step-through geometry makes every stop simpler. The motor and battery sit low and central, so the ride stays planted. Gears spread wide to chew hills and tame flats. Hydraulic discs give confidence in wet streets and busy intersections. The frame includes mounts for racks, fenders and a kickstand, so practicality is built in - not bolted on.
We've updated the Sausalito E1ST to include fender and lights as standard as well as some minor geometry tweaks for comfort and efficiency. We've made the E1 available in both traditional and step-through frame options to ensure that whatever your preference, you're comfortable exploring on a Sausalito.
The E1 ST now utilises the new Bosch Active + ecosystem with a larger 545wh battery for increased range and exploration.
We’ve paired it up with wide-range gearing and powerful hydraulic disc brakes that’ll tame all conditions and all-weather.
Key Details:Â
- Frame & Build:Â Series 3 butted and formed 6061 aluminum, low-step design, 650B wheel setup, integrated wiring, forged motor mount and hydroformed downtube battery mount, rack/fender/kickstand mounts.
- Motor, Battery & Display:Bosch Active Plus motor (50Nm) paired with Bosch PowerPack 545Wh battery and Bosch Purion 200 LCD display.
- Drivetrain:Shimano CUES 9-speed system with 11-46T cassette and 38T chainring for wide-range gearing; KMC chain.
- Brakes:Tektro HD-M275 hydraulic disc brakes with 180mm rotors for strong, consistent stopping.
- Fork:Steel Moto Blade fork, disc-specific, with fender and rack eyelets for everyday utility.
- Wheels & Tyres:Marin aluminium double-wall rims with 650Bx47 WTB Horizon tyres for compliant comfort and good traction.
- Comfort & Cockpit:Marin Urban alloy bars, Marin alloy stem and seatpost, Marin City Plush saddle, plus nylon platform pedals for a confident, upright posture.
Take it out. Feel how simple commuting can be. Ride more, worry less.
Specifications:
- Frame:Â Series 3 Butted and Formed 6061 Aluminium, 650B Wheel, Low-Step Design, Forged Motor Mount, Hydroformed Downtube Battery Mount, Integrated Wiring, Internal Housing, Kickstand, Rack, and Fender Mounts
- Fork:Â Steel, Moto Blade, Disc Specific, Fender and Rack Eyelets
- Motor:Â Bosch Active Plus, 50Nm
- Battery:Â Bosch Power Pack 545Wh
- Display:Â Bosch Purion 200 LCD
- Headset:Â FSA No. 57E
- Stem:Â Marin Alloy
- Handlebars:Â Marin Urban Alloy, 31.8mm Clamp
- Brakes:Â Tektro HD-M275 Hydraulic, 180mm Rotor
- Brake Lever:Â Tektro Hydraulic
- Rear Mech:Â Shimano Cues 9-speed
- Shifters:Â Shimano CUES 9-speed
- Rims:Â Marin Aluminium Double Wall, Disc Specific
- Front Hub:Â Forged Aluminium Alloy, 32H
- Rear Hub:Â Forged Aluminium Alloy, 32H
- Spokes:Â 14g Black Stainless Steel
- Front Tyre:Â WTB Horizon, 650Bx47, Wire Bead
- Rear Tyre:Â WTB Horizon, 650Bx47, Wire Bead
- Seat Post:Â Marin Alloy, 30.9mm
- Saddle:Â Marin City Plush
- Chainset:Â Forged Aluminium w/ 38T Steel Chairing
- Chain:Â KMC E11S
- Cassette:Â Shimano CUES 9-Speed 11-46T
- Pedals:Â Nylon Platform
Please Note – Whilst we endeavour to provide up-to-date information, the manufacturer's specifications and designs can change without prior notice.
Sizing:

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Marin
Marin Sausalito E1 ST Bosch 650b - Gray - 2025
Marin Sausalito E1 ST Bosch 650b - Gray - 2025
Item ID: GM091525-172
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