Cargo Bike
Tern GSD P00
Gen 3Belt drive and stepless CVP shifting. The low-maintenance GSD.
by Tern
GSD lineup
$6,999
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78.8lbs
Weight
463lbs
Max load
85Nm
Torque
~84mi
Real range
500Wh
Battery
Yes
Foldable
Carryish Scores
7/10
Overall
9/10
Hills
6/10
Cargo
7/10
Range
7/10
Value
6/10
Family
The Carryish Take
The P00 is your entry into the GSD platform — same folding frame and 463-lb capacity as the S10 and R14, but with a Gates belt drive and Enviolo CVP stepless shifting for $6,999. You'll never adjust a derailleur. At $1K less than the S10, it trades chain simplicity for belt simplicity and loses the Shimano gear range. If you haul kids daily and hate maintenance, the P00 earns its keep.
Bottom line: The quietest, lowest-maintenance longtail cargo bike you can buy — worth the premium if you ride year-round and hate wrenching.
Best for
- Urban parents doing daily school drop-offs and grocery runs who want a bike that works every day without trips to the shop
- Apartment or condo dwellers with elevator access who need a full-size cargo bike that actually fits inside their building
- Year-round commuters in wet or salty climates who are tired of replacing chains every few months
- Riders who want a set-it-and-forget-it drivetrain — no indexing, no cable stretch, no chain lube on your pants
- Families replacing a second car and need the 1000Wh dual-battery range to cover 40+ miles of errands between charges
Not for
- Budget-conscious buyers — the RadWagon 5 at $1,999 hauls kids and groceries with 80% of the capability at less than a third of the price
- Hill climbers who need maximum gear range — the Tern GSD S10 with its Shimano Deore 10-speed gives you wider ratios for $5,599
- Riders who want throttle assist for intersection starts — the Aventon Abound has a thumb throttle and costs $1,799
- Speed demons who need Class 3 capability — the Riese & Müller Multitinker hits 28 mph assist if you want to keep up with traffic
In the wild
Pros & Cons
What we like
- +Gates carbon belt drive and Enviolo CVP shifting means no chain stretch, no derailleur adjustments, and near-silent operation in all conditions
- +Dual Bosch 500Wh batteries (1000Wh total) deliver a realistic 50-70 miles of range depending on load and terrain — enough for a full week of school runs without charging
- +Bosch mid-drive motor puts out 85Nm of torque, which moves 463 lbs of gross vehicle weight up steep hills without drama
- +Folds at the handlebar stem and seatpost to fit inside a standard 54-inch elevator — a genuine apartment-dweller feature, not a marketing gimmick
- +Class 1 pedal-assist only (20 mph max, no throttle) means it's legal on bike paths in virtually every US city and state
- +At 78.8 lbs it's heavy for a normal bike but light for a longtail cargo bike hauling this much battery and motor — the Yuba Spicy Curry weighs about the same
Watch out for
- –$6,999 is a significant ask — you're paying a real premium over chain-drive GSD models and competitors for the belt and CVP combo
- –The Enviolo CVP hub has a narrower effective gear range (~380%) than a Shimano Deore 10-speed cassette, so very steep hills with full cargo can feel undergeared
- –At 78.8 lbs you're not carrying this up stairs — the elevator fold is great, but if your building doesn't have one, plan accordingly
- –No throttle (Class 1 only), so starting from a dead stop on a hill with two kids on the back requires real leg effort until the motor kicks in
Full Specifications
Motor & Power
- Motor
- Bosch (Mid-drive)
- Torque
- 85 Nm
- Top speed
- 20 mph
- Class
- Class 1 (20 mph, no throttle)
Battery & Range
- Battery
- Bosch 500Wh
- Dual battery
- Yes (1000Wh total)
- Stated range
- 129 mi
Size & Weight
- Weight
- 78.8 lbs
- Max system weight
- 463 lbs
- Cargo capacity
- 220 lbs
- Rider height
- 4'11" – 6'7"
- Foldable
- Yes
- Fits in elevator
- Yes
Drivetrain & Brakes
- Drivetrain
- Belt drive — Gates
- Gearing
- CVP (stepless) (1-speed)
- Brakes
- Hydraulic disc — Magura
Wheels & Comfort
- Front wheel
- 20"
- Rear wheel
- 20"
- Suspension
- Rigid
Cargo & Family
- Layout
- Longtail
- Wheel guards
- Yes
- Rack system
- Atlas G, 100 kg (220 lb) capacity
Safety & Security
- Integrated lights
- Yes
Extras
- Display
- Bosch Purion
Frequently Asked Questions
How does Enviolo CVP shifting actually work?
Instead of clicking between fixed gears, you twist the grip and the hub smoothly changes ratios with no steps. It's like a dimmer switch instead of an on/off — you find exactly the resistance you want. The trade-off is slightly less total range than a traditional cassette.
Can I fit two kids on the back?
Yes. Tern sells the Clubhouse Fort and Storm Box accessories that mount to the rear rack and safely hold two kids. With the 220 lb rear cargo limit, two children plus a bag of groceries is well within spec.
How small does it actually fold?
The handlebars fold down and the seatpost drops, cutting the bike's height to about 29 inches. It doesn't fold in half like a Brompton — the wheelbase stays the same — but it fits through doorways and into standard apartment elevators.
Will both batteries charge at the same time?
You'll need Bosch's dual charger or two separate chargers to charge both simultaneously. With a single charger, you swap it between batteries, which takes about 4.5 hours each. Most people just plug in overnight and it's a non-issue.
How does the belt drive hold up long-term?
Gates carbon belts typically last 15,000-20,000 miles — roughly 3-4x longer than a chain. They don't stretch, don't rust, and don't need lubrication. The main thing to watch is belt tension, which a shop can check during annual tune-ups.
