Tern
Tern NBD
Ultra-low step-through commuter e-bike with a Bosch Active Line Plus mid-drive (50 Nm), 400 Wh battery, 20-inch wheels and a 140 kg load rating.
Retailer's own copy, quoted as published.
Source: research:2026-07-10:tern · confidence: verified · brand page
Specifications — as published
- Motor
- 250 W mid
- Battery
- 400 Wh
- Claimed range
- up to 108 km
- Assist cutoff
- 32 km/h
- Weight
- 24 kg
- Brakes
- Shimano hydraulic disc
- Model year
- 2025
Only fields published by the brand are shown — nothing is estimated.
Where it stands legally · United States
At 250 W with a 32 km/h cutoff, this model fits the US federal ≤750 W low-speed electric bicycle definition (Class 1–3). State rules.
Offers — US (USD)
- Tern (direct) $3,599 USD Offer
Prices are read nightly from retailer storefronts; markdowns are the retailer's own list-vs-current price.
Performance Overview
Strengths
- Weight28%
24 kg vs 33.2 kg avg
Weaknesses
- Motor power70%
250 W vs 834.5 W avg
- Battery capacity48%
400 Wh vs 775.1 Wh avg
- Assist cutoff19%
32 km/h vs 39.3 km/h avg
Percentiles and averages are computed at build time from published specs of commuter models in the index — no spec is estimated. Categories with sparse data show fewer axes.
The verdict — computed, not opined
Value Score 31/100 — a mid-table commuter.
- Value Score 31/100 — ranked 97 of 97 USD-priced commuter models
- Price rank 132 of 139 commuter models priced in USD
Every line above is derived from catalog data at build time — how scoring works.
