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TM4+ Lowstep

£2,950.00 Model 25146

TM4+ Lowstep is an electric trekking bike designed around our Ultimate Comfort Philosophy. Every element of this bike is made for the highest levels of comfort on extended adventures, recreational rides and daily cruises. It's built with a lightweight aluminium frame, a downtube-integrated 500 Wh battery, a powerful Bosch motor that helps you sustain speeds of up to 25 km/h and the 10-speed Shimano drivetrain with a wide range of gearing that's perfect for mountainous terrain.

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It's right for you if...

Durability, performance and great looks are all important to you, but comfort is your primary consideration. This electric trekking bike is built with quality parts that will hold up on the long haul and are designed to deliver the Ultimate Comfort experience on every ride.

The tech you get

An Alpha Aluminium Ultimate Comfort frame with a Lowstep geometry, a downtube-integrated 500 Wh battery, a wide-range Shimano drivetrain, a Bosch Active Line Plus (250 W, 40 Nm) motor for speeds up to 25 km/h and an Intuvia controller. Plus, wide tyres for stability and traction, a suspension fork, a Cable GuidR adjustable stem, hydraulic disc brakes for all-weather stopping power, mudguards, lights, a rack and a U-lock.

The final word

TM4+ Lowstep is built with high-quality parts for high-quality adventures. But what really sets this model apart from others in the line-up is how comfortable it is to ride in a wide variety of conditions.

favorite_borderWhy you'll love it

  1. The Midstep geometry gives you more confidence when mounting and dismounting
  2. The high-capacity 500 Wh battery means more time riding and less time charging
  3. The suspension seatpost and fork absorb fatiguing bumps in the road
  4. With a pre-installed rack and mudguards, you can go from the bike shop straight to the shops with ease
  5. Sporty bikes don't have to be uncomfortable, and this bike proves it



  • Frameset

    Ultimate Comfort Philosophy, Alpha Smooth Supreme Aluminium w/integrated battery
    RST Vita w/lock-out
  • Wheels

    Front hub
    Shimano Deore
    Rear hub
    Shimano Deore
    Alex Rims DP23
    Schwalbe Energizer Plus Green Guard, 700x40c
  • Drivetrain

    Shimano Deore Rapid-Fire Plus, 10 speed
    Rear derailleur
    Shimano Deore 10-speed
    Shimano Tiagra 10-speed
    Bontrager Ultimate Comfort pedals
  • Components

    Bontrager Boulevard
    Aluminium Suspension
    Bontrager aluminium
    Bontrager Ultimate Comfort Satellite Elite, lock-on
    Innovation Award Winning, Bontrager Cable Guidr
    Brake set
    Shimano hydraulic disc brake
  • Accessories

    Bosch PowerTube 500 Wh
    Bosch Intuvia
    Bosch Active+, 250 Watt, 50 Nm
    Front light
    AXA Blueline
    Rear light
    Spanninga SOLO for e-bike
  • Weight

    L - 23.20 kg / 51.15 lbs
    Weight limit
    This bike has a maximum total weight limit (combined weight of bicycle, rider and cargo) of 136 kg (300 lb).
We reserve the right to make changes to the product information contained on this site at any time without notice, including with respect to equipment, specifications, models, colors, and materials.
Bike and frame weights are based on Trek pre-production painted frames at the time of publication. Weights may vary in final production

Sizing & fit

Proper bike fit is essential for best performance and comfort. Any size and geometry measurements shown on trekbikes.com are for general comparison purposes only. To find your perfect fit, visit an authorised Trek retailer, where an expert skilled at sizing will help you find the appropriate bike and size for your individual needs.


Rider Height


All measurements provided in cm unless otherwise stated.

Frame size letter A — Seat tube B — Seat tube angle C — Head tube length D — Head angle E — Effective top tube F — Bottom bracket height G — Bottom bracket drop H — Chainstay length I — Offset J — Trail K — Wheelbase L — Standover M — Frame reach N — Frame stack
L 55.0 73.0° 19.5 70.0° 59.0 29.8 6.0 48.3 4.5 8.3 113.3 70.5 39.0 65.2
M 50.0 73.0° 16.5 69.5° 57.4 29.8 6.0 48.3 4.5 8.6 112.1 67.1 38.4 62.1
S 45.0 73.0° 14.0 69.0° 55.9 29.8 6.0 48.3 4.5 8.6 111.0 68.1 37.7 59.6
XL 60.0 70.0° 18.0 68.5° 63.7 30.1 6.2 50.2 4.5 9.5 117.9 49.3 40.7 63.5

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