Watch product videoGreenSpeed Magnum Big Wheel — Custom Bosch / Enviolo Automatic Demo
Ships Fully Assembled
Flat Rate $349/$499
Home Delivery Nationwide
Demo Special: $9,700 (Regular retail $10,500 — save $800)
One-of-a-kind custom build. One available. Ready to ride today.
The trike that shifts for you.
This isn't a stock Magnum. This is a one-off custom build we put together right here at Laid Back Cycles — designed for riders who want maximum comfort, effortless power, and zero fuss. You don't shift. You don't strain. You just pedal, and the trike takes care of the rest.
Powered by Bosch. Shifted by Enviolo. Built for you.
At the heart of this build is the Bosch Performance Line motor with the new Smart System — smooth, quiet, and powerful assist that makes hills feel flat and headwinds disappear. It's paired with an Enviolo Trekking heavy-duty hub with AUTOMATiQ automatic shifting. Set your preferred pedaling cadence once, and the trike shifts itself — automatically, seamlessly, every ride. It's the closest thing to "just pedal and go" you'll find on three wheels.
Comfort was the whole point.
- Extended seat stays + extended handlebars for a more upright, relaxed seating position — easier on your neck, shoulders, and back
- Plush upgraded seat cushion and padded headrest for extra comfort on longer rides
- Integrated wrist rests so your hands stay relaxed, not gripped
- Grab handle assist bars that make getting on and off the trike simple and confident
- Dual mirrors for full visibility behind you in both directions
Ready for the real world.
- Schwalbe Pick-Up e-rated tires (20" front / 26" rear) — tough, puncture-resistant, and rated for e-trike loads
- TRP hydraulic disc brakes with 180mm rotor — strong, controlled stopping power
- Bosch Purion 200 display — clean, easy-to-read, right at your fingertips
- NiteRider light set plus a Hi-Tail extendable rear flag light for maximum visibility to traffic
- OR8 chain guide for quiet, reliable drivetrain performance
- GreenSpeed's legendary Magnum frame — the highest weight capacity and most adjustable trike in its class
How this compares to the stock Magnum BW e+
GreenSpeed's factory electric Magnum BW e+ sells for $6,700 with their Boost Kit e+ assist. This custom build goes far beyond it:
| Feature | Stock Magnum BW e+ ($6,700) | This Custom Build |
|---|---|---|
| Motor | GreenSpeed Boost Kit e+ | Bosch Performance Line, Smart System — the gold standard in e-assist |
| Shifting | 20-speed manual derailleur | Enviolo AUTOMATiQ automatic shifting — no shifting, ever |
| Rear hub | Standard | Enviolo Trekking HD custom-built wheel |
| Brakes | Mechanical disc | TRP hydraulic disc brakes |
| Display | Basic | Bosch Purion 200 |
| Handlebars | Standard | Extended bars for upright, relaxed riding |
| Seat stays | Standard | Extended stays for a higher, easier-entry seat position |
| Seat | Stock pad | Upgraded cushion + padded headrest |
| Tires | Stock | Schwalbe Pick-Up e-rated — tougher, longer-wearing |
| Extras | Flag, rear fender | Wrist rests, grab handle assist bars, dual mirrors, NiteRider lights, Hi-Tail extendable light, chain guide |
Same legendary Magnum foundation — 400 lb combined load capacity, folding aluminum frame, GreenSpeed's famous Cross-Over steering — with over $3,800 in premium upgrades.
Why the demo price?
This trike has lived on our showroom floor. It's been kept in excellent condition, professionally maintained by our shop, and it's ready to roll out the door today — no build wait, no shipping delay from the factory. For $3,000 more than a stock factory e-assist model, you get a Bosch Smart System motor, automatic shifting, hydraulic brakes, and every comfort upgrade we know how to build — a $10,500 custom for $9,700, fully assembled, tuned, and backed by Laid Back Cycles.
One trike. One lucky rider. When it's gone, it's gone.
📞 Call or text us at 916-668-8766, or book a free Build Your Dream Trike Session to come ride it.
Flat Rate, Nationwide Shipping – Straight to your door, ready to ride.
ADD-ONS
-
Greenspeed Chain Gobbler (for Magnum and GT)
$169.00 -
Greenspeed Multi-Purpose Accessory Mount
$39.00 -
Ventisit - Mesh Seat Pad
$169.99 -
Shimano Pedals - Platform & Clip-in
$89.99 -
Teardrop Flag
$49.99
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Built for the rider who just wants to ride
This one's for you if shifting gears feels like a chore, if getting on and off a low trike has kept you from riding, or if you want power on the hills without wrestling with technology. Everything on this build works for you automatically: the motor senses your pedaling, the hub shifts itself, and the raised, upright seat with grab handles means you step on and step off with confidence. You don't manage this trike. You just ride it.
Shifts For You
Enviolo AUTOMATiQ shifts automatically as you ride — set your preferred cadence once, then just pedal.
Bosch Smart System Power
The Bosch Performance Line motor delivers smooth, quiet assist that makes hills feel flat and headwinds disappear.
Easy In, Easy Out
Extended seat stays, grab handle assist bars, and an upright riding position make getting on and off simple and confident.
Frequently Asked Questions
Not sure which trike fits you?
Book a Dream Trike Session
One free call with Laid Back Mickey. He'll ask about your back, your knees, your balance, and how you want to ride, then build you a shortlist of 1-3 trikes that actually fit your body. No obligation.