Cyrusher Sonder
Compact 20in commuter with a torque sensor, 480Wh battery and a 22.1kg kerb weight
Applied automatically when you use our Buy button. Only needed if you go direct:
BESTEBIKESUK
£50 off at the official Cyrusher UK store. Our Buy buttons apply it for you — you should see it come off in the basket before you pay. Verified at the checkout on 21 September 2026. It is not offered on the Loop 2.0, where Cyrusher's own checkout refuses it.
£50 off — applied for you
Applied automatically when you use our Buy button. Only needed if you go direct:
BESTEBIKESUK
£50 off at the official Cyrusher UK store. Our Buy buttons apply it for you — you should see it come off in the basket before you pay. Verified at the checkout on 21 September 2026. It is not offered on the Loop 2.0, where Cyrusher's own checkout refuses it.
Stock not confirmed · price and stock checked . Confirm with the retailer before buying.
How this record was sourced
Catalogue record updated . Specifications are normalised from published manufacturer and retailer information, not independent lab measurements. How the catalogue is researched.
No US store link for this bike yet — this goes to the UK store, which may not ship to you.
- Motor torque
- 40 Nm
- Battery
- 480 Wh
- Weight
- 22.1 kg (49 lb)
- Release
- 10 February 2025 — 1 year, 8 months on market
Performance & battery specs
Commuter extras
Full specifications
Common questions
Is the Cyrusher Sonder street legal in the US?
At 250W it is well inside the 750W federal ceiling for a low-speed electric bicycle, so federal law treats it as a bicycle rather than a motor vehicle. States then sort eBikes into three classes by how fast the motor keeps helping — 20 mph for classes 1 and 2, 28 mph for class 3 — and set their own rules on paths, helmets and minimum age, so the detail is state by state.
How long does the Cyrusher Sonder take to charge?
About 6 hours from empty with the supplied charger.
How much does the Cyrusher Sonder weigh?
22.1 kg. That is manageable for a short lift but awkward on stairs — worth checking if you have to get it through a hallway or into a flat.
Can the speed limiter on the Cyrusher Sonder be removed?
No — this model is locked at the standard assist limit with no setting to change it. In the US, raising the limit past your state's class pushes the bike out of the bicycle category: it can need registration, insurance and a helmet, it loses access to paths that only allow bicycles, and an insurer will treat it that way after an accident. We record the setting because it decides what a bike can legally be, not to suggest you change it.
Does the Cyrusher Sonder have a torque sensor?
Yes — a torque sensor, which scales assistance to how hard you push. It feels more like riding a bicycle than a throttle, and it is generally the more natural of the two systems.
What brakes does the Cyrusher Sonder have?
Hydraulic disc. Hydraulic discs need less hand force and hold up better in the wet and on long descents than cable-operated ones.
How much weight can the Cyrusher Sonder carry?
120 kg, including the rider. Subtract your own weight to see what is left for luggage, a child seat or shopping.
Answers are generated from this bike’s recorded specification, so they change when the specification does. Range figures are the manufacturer’s claim — why claimed range and real range differ.
Ownership notes
- On sale since 10 February 2025 (1 year, 8 months on market).
Protect your new bike
A good lock is the one thing worth sorting the day it arrives — it is what most insurers ask about, and it is what actually stops an opportunist.
Lock — FoldyLock Elite
A super-flexible folding lock — easy to wrap around an eBike frame and lock to almost anything. The mount doesn’t rattle, and the key slides in and out and locks smoothly (plenty of locks don’t — it saves a real headache). We run the matching pair ourselves — two locks, six identical keys, so both our eBikes open with the same key — genuinely convenient. ART 3 / Sold Secure Gold rated, the certification level many insurance policies ask for.
Insurance and registration
The two we use and recommend — Bikmo insurance and the Bike Register database — are UK-only, so we are not going to point you at them from here. Both exist in most countries under another name: ask your own insurer whether an eBike is covered on a home policy, and look for the national frame-number register where you live.
We genuinely use and rate these. Nothing in this section earns us anything.