Torque, hills,
and what
N·m really means.
The E3's listed 60 N·m mid-drive can use the bike's gears for hills and starts. This guide shows how to match that spec with your actual grade, total load and riding speed.
For hills, shortlist torque and gearing together. The E3 pairs a supplier-stated 60 N·m with a mid-drive that can use lower bicycle gears; your grade, total load and speed determine the final result.
Torque is rotational force, but the stated value may be at the motor or wheel. The measurement point and complete system matter.
A mid-drive can use the bike's gears; a hub motor uses its own reduction. Compare wheel-level results under the same conditions.
Do not buy by watts alone—or torque alone. Ask where values are measured and compare the complete system on the same grade.
From 30 to 85+ N·m.
Five tiers, what each is good for, and where the Stoke E3 sits.
30–40 N·m
Published torque band; measurement point may differ by maker
No universal grade can be assigned from this number alone
Request a test using your grade, load and speed
40–50 N·m
Published torque band; measurement point may differ by maker
No universal grade can be assigned from this number alone
Compare motor, gearing, wheel and controller together
50–60 N·m
Includes the E3 supplier statement of 60 N·m
A practical hill-commute shortlist when paired with useful gearing
The E3 mid-drive can use the bike's gears; route grade and payload still decide
70–85 N·m
Published torque band; test protocols may differ
Higher number still does not establish a fixed slope or load
Request wheel-level or matched complete-bike results
85+ N·m
Published torque band; test protocols may differ
Terrain and cargo claims require complete-bike documentation
Do not compare the number without its measurement method
Grade examples,
evidence required.
Example grades and the evidence needed before claiming how the E3 handles them.
| Slope | Where you'll find it | E3 (60 N·m mid-drive) | Note |
|---|---|---|---|
| Flat / 0% | Typical bike path, urban streets | Not independently tested here | Use a matched load, speed, battery and temperature test. |
| Gentle / 3–5% | Route-specific example: measure the actual overpass, bridge or street grade | Not independently tested here | Do not infer the result from 60 N·m or motor position alone. |
| Moderate / 8–10% | San Francisco neighborhood streets · suburban hill towns | Use the lowest suitable gear and compare under your actual load | No matched route test is available; do not infer the result from motor type alone. |
| Steep / 12–15% | SF Lombard-like · Pittsburgh hill neighborhoods | Unverified for this grade; request a matched test with load and temperature | Price and motor type alone do not prove climb capability or thermal limits. |
| Very steep / 20–25% | Driveways · short connectors · service roads | Do not rely on the supplier angle claim without a test method and load | Stop if the manual or controller indicates a fault or temperature limit; request the written operating limits. |
The supplier states 500W rated, 60 N·m and up to 30° on hardened pavement, but provides no complete public method, load, speed, duration or temperature. Treat the angle as unverified until a comparable test exists.
How the motor
decides to help.
Torque sensor
Measures pedal force. The controller then maps that signal to assistance according to its programming and selected level.
- — Measures pedal force
- — Controller maps force to assistance
- — Calibration and programming affect response
- — Sensor type alone does not prove ride feel
Cadence sensor
Detects crank rotation. The controller determines when and how assistance responds; behavior varies by programming and selected level.
- — Detects pedaling cadence or rotation
- — Controller maps the signal to assistance
- — Calibration and programming affect response
- — Sensor type alone does not prove ride feel
Torque questions, answered.
Neither torque nor wattage alone predicts hill performance. Compare where torque is measured, gearing, wheel size, controller limits, total load, grade, speed, traction and thermal conditions. A mid-drive can use the bike's gears, but a matched climb test is still required. Full mid-drive vs hub motor comparison →
There is no universal N·m threshold because motor torque may be measured at different points and the wheel result changes with gearing and wheel size. Measure your grade and total load, then ask for a comparable test. The E3 supplier states 60 N·m without a complete public test protocol.
A mid-drive can route motor force through the bike's gears, while a hub motor drives a wheel through its own fixed reduction. Published N·m figures may be measured at different points, so neither the number nor architecture alone proves a climb or efficiency winner without matched testing.
A torque sensor measures pedal force; a cadence sensor detects crank rotation. Controller programming determines how either signal changes assistance, so sensor type alone does not guarantee a particular feel or amount of help.
The E3 combines a supplier-stated 60 N·m with a mid-drive that can use the bike's lower gears, making it a sensible hill-commute candidate. The separate “up to 30°” supplier claim lacks a public test method, so size the decision from your measured grade and payload and use the appropriate gear. See E3 specs →
60 N·m mid-drive at $999
Supplier material states up to 30° without a test method or load. Compare your actual grade, rider load and gearing.
Configure your E3 →