The fastest route into the city e-bike market is not three bikes from three suppliers — it is one platform configured three ways. That is the core service a custom city e-bike manufacturer provides: a shared engineering base, split into distinct tiers by drivetrain, sensor and cockpit, so a brand can cover value, mid and premium commuters under one logo. JOBO's city family shows the method. The JB-TDB25L, JB-TDB29Z and JB-TDB30Z share one 36V platform — 6061 aluminum frames, a 36V 350W motor with 90N·m of torque, a 36V 15Ah Samsung battery with 60km of range, hydraulic disc brakes and a suspension fork — and diverge into a Shimano 7-speed value bike, a torque-sensor commuter with Bluetooth display, and a belt-drive flagship. City models are one branch of a full-range JOBO lineup that also covers folding, cargo, mountain, tricycle, motorcycle and kids' platforms, built in Jinhua with a second assembly site in Poland.
The City Brief: Four Problems One Platform Must Solve
A commuter e-bike is ridden differently from any other two-wheeler: the rider is in everyday clothes, in stop-start traffic, on a route that mixes bike lanes, curbs and broken pavement, under a fixed legal speed. A custom city e-bike program starts by locking the platform constants that answer those four problems:
|
Requirement |
Platform answer (all three models) |
|
Ride in everyday clothes |
Clean drivetrain layout, no exposed greasy chain on premium tiers |
|
Stop-start traffic |
Hydraulic disc brakes, responsive pedal assist |
|
Mixed urban surfaces |
Suspension fork, 27.5-inch tires (2.35–2.4″) |
|
Fixed legal speed |
25km/h configuration inside the EN15194 pedelec envelope |
|
Global charging |
100–240V AC charger, market-agnostic |
With the constants fixed, everything that separates one custom city e-bike from another becomes a small set of decisions — and each decision is a tier lever.
One Platform, Three Tiers
Tier 1 — The Value Commuter: City Electric Bike (JB-TDB25L)
The JOBO City Electric Bike is the entry point of the lineup. Its 36V 350W mid motor routes 90N·m through the drivetrain, and the Shimano 7-speed groupset keeps the specification — and the target retail price — at the accessible end. The step-through frame means riders mount in traffic without swinging a leg over a top tube. As the first rung of a custom city e-bike ladder, it answers the question "what does your brand's cheapest city model look like?" with a complete, certified machine rather than a stripped-down compromise.
- Motor: 36V 350W mid motor, 90N·m
- Battery: 36V 15Ah Samsung lithium, 60km range
- Drivetrain: Shimano 7-speed
- Brakes: hydraulic disc
- Frame: step-through 6061 aluminum
Tier 2 — The Connected Commuter: City Commuter Electric Bike (JB-TDB29Z)
The JOBO City Commuter Electric Bike adds the two upgrades commuters feel every ride: a torque sensor that measures how hard the rider is pedaling and responds proportionally, and an LCD display with a Bluetooth app for ride data and settings. The Shimano 8-speed groupset widens the gear range for hilly cities. This is the tier where a custom city e-bike program starts shaping brand experience — connectivity features and assist feel are what buyers remember and review.
- Motor: 36V 350W, 90N·m
- Battery: 36V 15Ah Samsung lithium, 60km range
- Drivetrain: Shimano 8-speed
- Sensor: torque sensor
- Cockpit: LCD display with Bluetooth app
Tier 3 — The Low-Maintenance Flagship: Belt Drive City E-Bike (JB-TDB30Z)
The JOBO Belt Drive City E-Bike tops the lineup with a carbon belt drive replacing the chain: no grease on trouser cuffs, no chain rust after rain, no chain stretch, and near-silent power transfer. Paired with single-speed simplicity and the torque sensor, it is the tier for daily, all-weather riders — and the one fleet and subscription operators specify when service labor costs more than components. A custom city e-bike flagship built this way positions a brand at the premium end of the category without exotic engineering risk.
- Motor: 36V 350W, 90N·m
- Battery: 36V 15Ah Samsung lithium, 60km range
- Drivetrain: belt drive, single speed
- Sensor: torque sensor
- Cockpit: smart LCD with Bluetooth
Tier Comparison
|
|
JB-TDB25L |
JB-TDB29Z |
JB-TDB30Z |
|
Tier |
Value |
Connected commuter |
Low-maintenance flagship |
|
Drivetrain |
Shimano 7-speed |
Shimano 8-speed |
Belt drive, single speed |
|
Sensor |
— |
Torque sensor |
Torque sensor |
|
Cockpit |
LCD |
LCD + Bluetooth app |
Smart LCD + Bluetooth |
|
Motor |
36V 350W mid motor |
36V 350W |
36V 350W |
|
Battery / range |
36V 15Ah Samsung / 60km |
36V 15Ah Samsung / 60km |
36V 15Ah Samsung / 60km |
|
Best fit |
Entry retail price point |
Brand-experience mid tier |
Premium / fleet duty |
The Four Decisions That Define a City Model
Every custom city e-bike in the lineup above is a different answer to the same four questions. A custom city e-bike program works through them with you, one tier at a time:
- Frame entry: step-through or diamond. Step-through frames dominate city categories because mounting in traffic, in ordinary clothes, with a bag on the shoulder must be effortless. All three featured models ride on the step-through family; a sportier diamond variant opens a fourth tier if your market wants one.
- Drivetrain: chain or belt. Chain plus derailleur keeps cost down and gear range wide (Tiers 1–2); belt drive trades gears for cleanliness and lower service (Tier 3). The split is the cleanest value story a city lineup can tell.
- Sensor: speed or torque. A speed sensor assists at a set rate; a torque sensor reads the rider's pedal force and answers it proportionally. The jump from Tier 2 upward is felt in the first hundred meters of a test ride.
- Connectivity and equipment. Bluetooth displays, app pairing, racks, fenders and integrated lighting are the tier levers buyers can see at a glance — and the ones a custom city e-bike program brands most visibly: your boot screen, your app, your accessory spec.
Why All Three Tiers From One Manufacturer
Sourcing the tiers from three factories means three battery chemistries to stock, three compliance files to maintain, three ride feels under one logo. One custom city e-bike manufacturer means one platform: shared battery and motor across tiers, a single EN15194 / CE documentation trail, one spare-parts list, and a consistent ride your customers can recognize across the range. Every custom city e-bike you ship inherits the same test reports and the same component foundation.
That is the manufacturing logic behind the lineup: JOBO has built electric two-wheelers since 2014, runs a 50,000 m² plant in Jinhua and a 10,000 m² site in Poland, produces 300,000 units a year across its full-range lineup, holds 107 patents and an R&D team of 40+ engineers, and exports to 80+ countries under ISO 9001, CE and EN15194 certification. City commuters are one chapter of that catalog — the same program structure applies to the folding family covered in our folding e-bike OEM guide.
FAQ
Why put a belt drive on a city e-bike?
Because commuters ride in everyday clothes and fleets count service hours. A belt drive runs clean — no chain grease, no rust, no stretch — and is near-silent. The trade is gear range, which is why it tops the lineup as the single-speed flagship rather than replacing the chain tiers.
Torque sensor or speed sensor — which tier needs which?
A speed sensor suits a value tier: assist arrives at a fixed rate, and the price stays low. A torque sensor belongs from the mid tier up: it reads pedal force and responds proportionally, which is the ride feel buyers associate with premium e-bikes.
Is the 25km/h speed limit fixed?
It is the standard configuration for EU pedelec markets under EN15194. As with the rest of the specification, speed configuration follows the destination market's regulation — one more variable a custom city e-bike program sets per market rather than per model.
Why do city e-bikes use step-through frames?
Because mounting in traffic must be safe and instant — no swinging a leg over a top tube with a laptop bag. Step-through geometry also fits the widest range of rider heights and clothing, which widens a single SKU's addressable market.
Can one manufacturer cover a whole city lineup plus other categories?
Yes. The three city tiers above sit inside JOBO's full-range catalog — folding, cargo, mountain, tricycle, motorcycle and kids' platforms run through the same engineering and production system — so one supplier can carry a custom city e-bike lineup today and other categories later.
Build Your City Lineup With JOBO
One platform, three tiers, one brand on every frame. Talk to the JOBO team about a custom city e-bike program: request the specification sheets for the JB-TDB25L, JB-TDB29Z and JB-TDB30Z, and a tier plan that maps each custom city e-bike to your price points and target markets.
