Rocket ST Step-Through Fat Tyre Electric Bike 250W (2025)

Off-Road Attitude, Effortless Access

The Rocket ST 250W is a step-through bike built for stylish cruising with a rugged edge. Whether you are exploring trails, cutting across fields or rolling through open terrain, it delivers freedom with flair.

Power Meets Style

With a 250W rear hub motor and a 36V 14Ah removable battery, the Rocket ST packs serious punch for weekend rides and off-road adventures. The lightweight Rocket alloy frame is both durable and eye-catching, with custom wheel and trim options to suit your look.

Ready When You Are

Nine levels of pedal assist, a fast 5-hour charge time and a clear LCD display keep you in full control. Available in a range of bold trim and rim colours, the Rocket ST is built to stand out wherever the ride takes you.

Frame Alloy 6061 Frame
Fork Suspension Alloy Fork
Handle Bars/Stem Alloy PROMAX
Rim Alloy 6061 double wall rims, anodized
Tyres 20 x 4 inch fat tyre, KENDA K1032
Battery 36V 14Ah lithium ion removable battery
Motor Brushless, DC motor, Rear drive motor
Max Speed Motor provides assistance up to 15.5mph
Display LCD display, 9 level PAS
Controller 36V, brushless hall controller
Brakes F/R Hydraulic disc brake
Derailleur Shimano
Hubs Shaft Hubs + Quick release
Lights Large front round headlight + rear light included
Mudguards Yes
Charge Time 5 Hours
Distance Per Charge* Single charge averages 30-40 Miles
Bike Weight 25kg
Seat Height 850mm
Battery Warranty 6 Months
Motor Warranty 12 Months
Max Rider Weight 120kg

Suitable for most riders under 6ft.

*Please note actual mileage may vary depending on rider weight, weather conditions, natural battery degradation etc.

Rocket e-bikes are typically delivered in 3-6 working days.

If a battery upgrade has been chosen, expect delivery in approximately 5-8 working days.

Despite their cruiser style, there is a large amount of adjustment that can be made to Rocket e-bikes.

Extra pads can help to raise the saddle height, or alternative handlebars can be fit to give you a more upright position.

If you are concerned about the size, get in touch with us to discuss modifications we can make to the bike before delivery.

If you are on the taller side (6ft+), we would recommend the GTS line up as these have 24” tyres and so are more suited to taller riders.

All Rocket e-bikes come with a 12-month manufacturer's warranty on the motor, and a 6-month manufacturer's warranty on the battery.

Please Note: Batteries need to to stored correctly or the warranty will be void.

We’ve got you covered with a range of payment options. Every transaction is secured with industry-standard encryption, so you can shop with confidence. Take a look at the options below:

Buyline Finance - 0% APR Over Up To 11 Months

With Buyline Finance, you can spread the cost of your new wheels across up to 11 monthly payments with 0% APR. Simply choose between 6, 9, 10, or 11 month payment plans and select the deposit you wish to pay (between 0-50%).

For further information or to order with this option, you can find our dedicated page here.

Other Ways To Pay

We accept all major credit/debit cards, PayPal, Klarna, and even Bank Transfer.

PayPal

Paying with PayPal is simple, quick, and secure. Just select PayPal at checkout to order. We receive instant payment confirmation, allowing us to process your order without delay.

Klarna

Klarna’s "Pay Later" lets you receive your order upfront and pay within a set period (usually between 2 weeks and 2 months) with no interest or fees. In their app, you can pay early or extend the due date if needed.

Klarna also offers "Pay in 3" which splits the total into three equal interest-free instalments.

Bank Transfer

Want a further discount on your purchase? Save an additional 2% on all orders when you pay by bank transfer. Just let us know which model you're after, and we will send you an invoice with the discount already applied.

Score big with the Cycle to Work scheme

If your employer’s already signed up (or is ready to join), you can save up to 47% on any of our road-legal electric bikes and spread the payments (along with accessories!) It's a brilliant way to get an e-bike without breaking the bank!

Important note: Only bikes meeting EAPC regulations and with motors offering a maximum continuous rated power output up to 250W are eligible for the scheme.

Got your voucher sorted?

If you've already got your cycle to work voucher (also known as a certificate or letter of collection (LOC)), just shoot it over to us at info@bikeyardonline.co.uk.

Once we’ve got your voucher, we’ll get your new e-bike rolling. We’ll also guide you through the process and keep you updated with tracking info once it’s on the way!

Not got your voucher yet?

If your workplace is signed up but you don’t have a voucher in hand, no worries! Ask your employer to request a voucher based on the bike you want. Once they’ve sorted it, send it our way and we’ll handle everything from there.

Employer not signed up to a scheme?

Not a problem! Reach out to us, and we can even help them sign up to one quickly and with no up-front cost.

Learn more about our Cycle to Work schemes

Need more info? Click here to explore how the Cycle to Work scheme works. You can also contact our friendly team - we're always happy to help!

In the UK, only e-bikes that comply with EAPC regulations can be ridden on public roads without tax, insurance, or registration. You can find out more about the EAPC Regulations from our legal guide here, or via the government website.

For any questions regarding this, please reach out to us on info@bikeyardonline.co.uk and we will be happy to assist.