Tesoro 1 Low Step-Thru

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        One Ride Away

        Inside this potent urban e-bike lies the wild and rugged heart of an explorer. With huge range, robust components, and grippy mixed-surface tires, the Tesoro is built to get you to it all week, and away from it all on the weekend.

        Model Description

        Tesoro 1 doesn’t wait for a green light—it’s already halfway down the road, kicking up dust. Powered by Bosch’s CX motor and an 800Wh battery, this bike is all about getting you where you want to go—fast. The lightweight, rugged, Low StepThru alloy frame makes getting on and off effortless. The rear rack features an integrated extra-large U-lock for convenient security, while the Shimano 10-speed drivetrain and grippy multi-surface tires handle everything from city shortcuts to off-road detours without missing a beat. Life’s too short for boring rides.

        What it's for

        Adventure trekking, wild exploring, and long-range commuting

        Highlights

        • Robust and responsive SmartForm C1 Alloy low step-thru frame with integrated rack, fenders, and headtube rack mount
        • Bosch's most powerful Smart System, with the 2025 Performance Line CX motor, Kiox 300 display, and 800Wh PowerTube battery for up to 185km range
        • Smooth-shifting, durable, Shimano CUES U6000 10-speed drivetrain
        • RackLock rear rack with conveniently integrated, extra-large U-Lock
        • 100mm travel Suntour XCR34 mountain bike suspension fork
        • Bump-absorbing suspension seatpost

        One Ride Away 

        Power

        800Wh PowerTube battery and 2025 Performance Line CX motor - the most powerful system Bosch has ever made.

        25 km/h Assist

        This e-bike drive system provides pedal assist up to a maximum speed of 25 km/h. Above that, it’s all you.

        Range

        The 800Wh battery provides up to 185 km of range on a single charge. Have fun. Ride longer.

        Ride Quality Comes First 
        Brains and brawn come together in Tesoro. It’s engineered with the rugged capability to handle whatever the terrain throws your way, and the endless versatility to bring whatever you want with you. It’s as practical as can be – but always ready for adventure.
        The Best of Bosch 
        Tesoro features Bosch’s latest and most powerful e-bike SmartSystem. With the Performance Line CX motor, huge 800Wh battery, Kiox 300 display, and mini remote, it offers effortless acceleration, compelling versatility, seamless Bluetooth compatibility, and a range of up to 185 km on a single charge. Go wherever you want, for as long as you want, as easy as you want.  
        RackLock Makes it Easy  
        Never forget your lock again. The innovative RackLock is a Racktime SnapIt 2.0 compatible, child-seat-approved, rear rack that can carry up to 27kg, while also housing a super-strong U-lock, so you always have your lock with you when you need it.  
        Forked Up
        With a 100mm suspension fork up front, Tesoro X gives you comfort and confidence at the same time. It takes the shock out of big impacts, and rolls easily over smaller ones, while keeping the front wheel on the ground – and keeping you in control. 

        FIRST LOOK | Tesoro

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        Features

        Bosch Performance Line CX  

        The 2025 version of Bosch’s most powerful drive system, the Performance Line CX, delivers a big 85 Nm of torque and up to 600 watts of power more silently than ever before, for a serene and easy ride experience.  

        Specs

        Details

        • Platform
          Tesoro
        • Model Name
          Tesoro 1 Low Step-Thru
        • Model Code
          C66084U

        Frameset

        • Frame
          Tesoro, low step-thru, SmartForm C1 Alloy, removable 800Wh downtube battery, tapered headtube, internal cable routing, 135mm QR hub spacing, post mount disc brake, motor protection, integrated RackLock rack and fender - RackTime SnapIt 2.0 and child seat compatible
        • Fork
          SR Suntour Mobie XCR34, 100mm travel, coil with preload adjuster, lockout, crown light mount, 44mm offset
        • Headset
          Acros integrated cable routing, 1.8" sealed bearings with tapered reducers

        E-System

        • Drive Unit
          Bosch Performance Line CX 250W MY25
        • Battery
          Bosch PowerTube, 800Wh
        • Charger
          Bosch 4A
        • Display
          Bosch Kiox 300 w/ Mini Remote & System Controller

        Drivetrain

        • Rear Derailleur
          Shimano CUES U6000
        • Shifters
          Shimano CUES U6000, trigger style, 10-speed
        • Chain
          KMC e500
        • Crank
          FSA Bosch E-bike, 38T
        • Rear Cogs
          Shimano CUES LG400, 11-43, 10-speed

        Brakes

        • Brakes
          Tektro T535 4-piston hydraulic disc, 203/180mm TR rotors
        • Brake Levers
          Tektro M535 hydraulic disc

        Wheels

        • Front Hub
          Shimano TC500, 15x110mm thru-axle
        • Rear Hub
          Shimano HB-TX505, 135x9mm, QR
        • Rims
          Alloy, double wall, 32 hole, 25mm internal width, disc-specific
        • Spokes
          Stainless Steel, 14g
        • Tire Size
          2.35
        • Wheel Size
          27.5/29
        • Tires
          Schwalbe Johnny Watts LR, 27.5x2.35" 60-584 (SM, MD), 29x2.35" 60-622 (LG, XL)
        • Front Tire
          Schwalbe Johnny Watts LR, 27.5x2.35" 60-584 (SM, MD), 29x2.35" 60-622 (LG, XL)
        • Rear Tire
          Schwalbe Johnny Watts LR, 27.5x2.35" 60-584 (SM, MD), 29x2.35" 60-622 (LG, XL)

        Components

        • Handlebar
          Cannondale Urban Ergo Bar, 6061 Alloy, 25mm rise, 35° sweep, 0° rise, 680mm
        • Stem
          Cannondale Urban w/ Intellimount, Alloy, 31.8mm clamp, 60mm, +30°, Acros ICR, w/ SP Connect SPC+ Stem Mount
        • Grips
          Ergon GC10
        • Saddle
          Selle Royal Essenza
        • Seatpost
          Linear Suspension Seatpost, 31.6, 350mm

        Extra

        • Extra 1
          RackLock rear rack (27kg, Racktime SnapIt 2.0 & child seat compatible) with integrated extra-large Trelock U-Lock (key-matched with battery lock), Lezyne Foresite E350 front light and SuperNova TL3-Z rear light with integrated reflector, full-coverage fenders

        Please note that, based on component availability and other factors, specifications are subject to change without notice.

        Geometry

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