Trek Charter+ 4S

Charter+ is a luxury electric city bike that turns everyday rides into first-class experiences. An adjustable stem and front suspension deliver smooth comfort tailored to your fit, while a 28mph top speed and up to 45-mile range keep you moving fast and far. A sleek top-eject battery makes charging easy, and the bright headlight with high beam boosts visibility. With advanced security via the Bosch eBike Flow app, every detail is designed to elevate your ride.

Stay connected with Bosch

The Bosch eBike Flow app gives you more control with digital locking, theft alerts, customizable ride modes, and navigation — all from your phone. 

Make it your own

Customize your bike with bags, baskets, bottle cages, and more to make it your own. 

Find your perfect fit 

A fully adjustable stem lets you fine-tune your position every ride, from a more relaxed fit to a more active riding position. 

A better battery experience 

Charter+ comes with a high-capacity, top-eject Bosch battery for long rides and easy charging. The color-matched, lockable magnetic cover makes it secure, sleek, and simple to use.

MIK HD Rear Rack 

This MIK HD rear rack supports weight up to 60lbs making it compatible for pretty much everything from child seats, side panniers, baskets and pet carriers. 

Versatile visibility 

Stay seen with daytime running lights powered by the main battery. The front light turns with your steering, and high beam brightens the road after dark. 

Frame	Premium Alpha Platinum Aluminum frame, top-load Bosch CompactTube battery, integrated cockpit routing, integrated rack and fenders, adjustable bolt on dropout
Fork	SR Suntour SF25-NVX32, coil spring, preload adjuster, 5mm ThruSkew, 63mm travel
Tire	Bontrager E6 Hard-Case Lite, reflective, wire bead, 60tpi, 27.5x2.4''
Hub Front	Formula CL-25, alloy, centerlock, 5x100mm
Hub Rear	Formula FCL-542S, alloy, centerlock, 11 speed freehub, 142x12mm thru axle
Rim	Alloy double wall, 32H
Spokes	14g stainless steel, black
Skewer Front	Trek Thru-Skew
Skewer Rear	Bontrager Switch thru axle, removable lever
Shifter	Shimano U4000, 9 speed
Rear Derailleur	Shimano CUES U4000
Crank	ProWheel alloy, 170mm length
Cassette	Shimano LINKGLIDE LG300, 11-46, 9 speed
Chain	Shimano LG500, 9/10/11 speed
Brake	Shimano MT200 hydraulic disc
Brake Rotor	Shimano RT30, centerlock, 180mm
Pedal	Bontrager City pedals
Saddle	Bontrager Boulevard
Seatpost	Alloy, suspension, 31.6mm, 300mm length
Seat Collar	Bolt-on, 36.4mm
Handlebar	Bontrager alloy, 31.8mm, 690mm width
Stem	Bontrager alloy, 31.8mm clamp, adjustable rise, Blendr compatible, 80mm length
Grips	Trek ergonomic PRO, lock-on
Light	Trek LED, taillight // Trek LED, 400 lumen low/800 lumen high, headlight
Kickstand	Adjustable length rear mount alloy kickstand
Battery	Bosch PowerTube 540Wh
Motor	Bosch Performance Line Sport, Smart System, 85Nm, 750W, 28 mph
Charger	Bosch standard 2A, 110V, smart system

Geometry Chart

B B Drop	6
B B Height	29.9
Chainstay Length	48.5
Eff Top Tube	62.5
Frame Reach	40.5
Frame Size Letter	M
Frame Size Number	50cm
Frame Stack	62.5
Head Angle	69.0°
Head Tube Length	16.3
Offset	4.4
Seat Tube	50
Seat Tube Angle	71.0°
Standover	78.3
Trail	9.1
Wheelbase	115.5
Wheel Size	27.5"