Carrera Vengeance-E 3.0 vs Decathlon Rockrider E-ACTV 100: What’s the best budget high-street ebike?
Want an e-bike you can see in a shop, with a workshop down the road? Two current options keep coming up: Halfords’ Carrera Vengeance-E 3.0 and Decathlon’s Rockrider E-ACTV 100.
Note: this is a spec-based comparison from the retailers’ own listings. We haven’t ridden either yet.
They’re not quite the same kind of bike
The Vengeance-E 3.0 is an electric mountain bike, with front suspension and a wide spread of gears. The E-ACTV 100 is an electric hybrid, made for commuting and easy trails.
So this isn’t really “which is better”. It’s “which suits the way you ride”.
The price
Halfords lists the Vengeance-E 3.0 at £1,099. Decathlon lists the E-ACTV 100 at £999.99, which scrapes under £1,000 by a penny. Prices move often, so check before you buy.
Carrera Vengeance-E 3.0
- Motor: Bafang rear hub, 45Nm of torque, with a torque sensor and assistance up to 15.5mph
- Battery: 378Wh, removable, built into the frame. Halfords quotes a real-world range of 25 to 40 miles
- Gears: Shimano 8-speed with a wide 11-45T cassette
- Fork: Suntour, with 120mm of travel
- Brakes: Tektro mechanical discs
- Display: colour screen with five assist modes, from Eco to Boost
- Charging: up to six hours from flat
- Warranty: two years on the electrical parts
Decathlon Rockrider E-ACTV 100
- Motor: 250W Rockrider rear hub with 45Nm of torque
- Battery: removable, at around 360Wh. Decathlon’s own pages quote slightly different figures, so check the listing
- Range: up to 70km (about 43 miles) in Eco mode
- Extras: built-in lights, a Bluetooth link to the Decathlon Ride app and a phone bracket in the stem cover
- Load limit: 120kg for rider, bike and luggage combined
- Charging: about four and a half hours
- Warranty: lifetime on the frame, fork, handlebar and stem, and two years on the battery and other parts
Don’t trust the range numbers
Both are best-case figures. Halfords’ small print says cold weather cuts battery performance. Decathlon says range can drop by up to half in the cold. Plan for less in winter.
Are they legal?
Both are sold as standard UK e-bikes. They should meet the EAPC rules on GOV.UK: a motor of no more than 250W continuous power and assistance that stops at 15.5mph. That means no licence, tax or insurance. Our EAPC guide shows how to check the markings.
A charging note
Decathlon says its charger shuts off when the battery is full. Fire services still advise against leaving batteries charging unattended, so read our charging guide first.
So which should you pick?
Choose the Vengeance-E 3.0 if:
- You want gears and suspension for trails and rougher paths
- You like Halfords’ optional CycleCare plans. It also advertises Cycle2work savings, so see our Cycle to Work guide
Choose the E-ACTV 100 if:
- You mostly ride roads and paths
- You want built-in lights and an app
- You like the lifetime frame warranty and the lower price
Heavier riders should check Decathlon’s 120kg total limit first.
Before you buy either
- Try your size in the shop
- Ask what the battery warranty really covers
- Ask what servicing will cost
If we get the chance to ride both, we’ll update this page.