Head to head

SAMEBIKE CY20 vs SAMEBIKE RS-A07

On the numbers that decide this pair, the SAMEBIKE RS-A07 is 254 Wh more battery than the SAMEBIKE CY20. Everything else is below, including where it loses.

Range is our estimate under the reference ride, not the manufacturer's claim. Cost is over 5 years at 3,000 km a year, on the same formula the cost-of-ownership calculator runs. How we work this out

Range figures are MathBikes estimates under the reference ride. Prices are the current listed price.
SpecSAMEBIKE CY20SAMEBIKE RS-A07
Estimated range26 km44 km
Battery360 Wh614 Wh
Weight28.1 kg34 kg
Motor torque40 Nm40 Nm
Top speed24 km/h40 km/h
Price$649$1,399
5-year cost$1,206$1,773

Where each one wins

  • SAMEBIKE RS-A07 is 254 Wh more battery.
  • SAMEBIKE RS-A07 is 18 km further on range.
  • SAMEBIKE RS-A07 is 16 km/h faster.
  • SAMEBIKE CY20 is 5.9 kg lighter.

The SAMEBIKE CY20 leads on 1 of these, the SAMEBIKE RS-A07 on 3. Neither sweeps it, so the choice comes down to which of those you actually use.

What each one costs to own

Over 5 years the SAMEBIKE CY20 costs about 525 EUR less to own, once purchase, charging, servicing, a battery replacement where one is due, and resale are all counted.

That figure moves mostly on the battery. The SAMEBIKE CY20 covers about 19,200 km before its pack is due for replacement; the SAMEBIKE RS-A07, about 32,747 km. Ride less than that and the replacement never enters the sum.

Run these numbers on your own mileage

Which one to buy

  • Pick the SAMEBIKE RS-A07 if you ride to the edge of the battery and dislike planning around it.
  • Pick the SAMEBIKE RS-A07 if you would rather charge less often than carry less weight.
  • Pick the SAMEBIKE CY20 if you carry the bike up steps, onto a train, or into a flat.
  • Pick the SAMEBIKE RS-A07 if your commute has fast stretches where the assist cutting out matters.
  • Pick the SAMEBIKE CY20 if the five-year total is what you are optimising.

Verdict

On the measured axes the SAMEBIKE CY20 is the better buy, and the SAMEBIKE RS-A07 needs a reason of its own: a colour, a frame, a shop you trust, a price that moves. None of those are in our numbers, and all of them are legitimate.

Range here is an estimate under one reference ride, not a measurement. Yours will differ with terrain, weight, tyres and weather, which is what the range calculator is for.

Price drops

Tell me when either of these gets cheaper

One email when a price moves on a bike you are watching. Nothing else.