Electric Bicycle Guide: Pedal-Assist, Throttle and Folding Types

Written by OFERO Philippines Editorial Team · Reviewed by Willy, OFERO Philippines · Published 2026-10-19 · Last updated 2026-10-19

Drafted with AI assistance; facts checked by Willy, OFERO Philippines against the sources listed below.

An electric bicycle is a pedal bicycle with a small motor and battery that help you ride. In the Philippines, “ebike” covers both this and the seated kind, so an “ebike with pedal” may be either; this guide calls the pedal kind an electric bicycle. Abroad, under UK and EU rules (not Philippine law), its motor may have no more than 250 W of continuous power, and the help must stop at 25 km/h.¹² The Brompton and Tern spec pages and a CarGuide.PH report on the Popcycle list 250 W motors and batteries of 252 Wh to 500 Wh.⁴⁵⁶ A seated 2-wheel ebike is a different machine: NXT lists its Pulse V2 with a 500 W motor and a 48 V 20 Ah lead-acid battery.⁸

What is an electric bicycle?

The UK rule is a clear reference point: pedals that can propel the bike, a motor of 250 W continuous or less, and no motor help above 15.5 mph (25 km/h).² The EU uses the same limits, and the US has its own classes.¹ These are foreign rules; see the FAQ for the Philippines.

There are three types, based on how you control the motor. Any of them can also fold.

• Pedal-assist (pedelec): the motor helps only while you pedal.¹
• Throttle: a twist grip or thumb lever runs the motor without pedaling.²⁴
• Combined: pedal-assist and a throttle on one bike.⁴

What is pedal assist? Cadence vs torque sensors

A pedal-assist electric bicycle uses a sensor to decide when to help and how much.³

• Cadence sensor: detects how fast you pedal. You get the help level you picked, steady at any pedal pressure.³
• Torque sensor: measures how hard you push, and the motor's output rises with your force. It can feel more responsive, but Gazelle notes it can feel more tiring on long rides.³

Some systems use both: Gazelle says Bosch motors combine the two signals so the help does not feel jerky or delayed.³ Brompton lists a torque sensor on its Electric C Line.⁵ If the sensor is not named, ask, then test-ride from a full stop.

Throttle-only and combined electric bicycles

A throttle moves the bike with no pedaling at all. Rules abroad differ: of the US classes, only Class 2 allows a throttle,¹ and in the UK a bike whose motor can move it without pedaling, such as a "twist and go", needs vehicle approval.²

A combined electric bicycle gives you both. The Popcycle Friend, an electric bicycle sold in the Philippines at Popcycle stores in Metro Manila as of November 2025 (per CarGuide.PH), starts its motor when you turn the cranks and also has a thumb throttle.⁴ The Brompton and Tern spec pages do not list a throttle.⁵⁶

Folding electric bicycles: weight, folded size and rider limit

A folding electric bicycle, often listed as a folding ebike, has hinges, so it packs small for a condo unit, a car trunk or a train. For stand-up folding scooters, see kick scooters.

• Tern lists the Vektron S10 at 22.1 kg, folding in 10 seconds to 410 × 860 × 680 mm, with a 105 kg rider limit.⁶
• Brompton lists its Electric C Line from 17.9 kg, or 14.1 kg without the battery, on 16-inch wheels.⁵
• The Popcycle Friend is a tri-fold with hinges at the frame, stem and rear triangle, 16 × 1 3/8-inch wheels and a battery inside the seat post.⁴

Folders use small wheels, and inch labels are not exact: a 16-inch tire commonly fits a 349 mm (Brompton-type) or 305 mm rim, and a 20-inch tire a 406 mm or 451 mm rim. Full-size 700C or "29-inch" tires use 622 mm rims.¹⁰

Where the motor sits on an electric bicycle

A hub motor sits inside the front or rear wheel hub; a mid-drive sits at the pedals and works through the bike's gears.¹ For torque, hills and heat, see hub vs mid-drive motors.

Motor watts and battery size, with examples

Watts can mean rated (continuous) or peak power. Bosch lists a Performance Line CX mid-drive (BDU450 CX) at 250 W rated but 600 W maximum, with 85 Nm of torque, so ask which figure a seller quotes.⁷ When every motor says 250 W, compare torque in newton-meters (Nm) only between motors of the same layout: hub torque is measured at the motor and mid-drive torque at the crank, so the two do not compare one-to-one.¹⁵ The Tern and Bosch mid-drives here list 50 Nm and 85 Nm.⁶⁷

Battery size is in watt-hours (Wh), roughly amp-hours × pack voltage.⁹ Range is the maker's figure: Tern quotes 50–100 km from 400 Wh, so ask how it was measured.⁶ More in our ebike battery guide.

Electric bicycle vs seated 2-wheel ebike

Both kinds are sometimes called an “electric bike”, so check which one a listing means. An electric bicycle suits riders who want light weight and exercise; a seated ebike suits riders who carry a passenger or do not want to pedal. See also types of ebike and ebike vs electric motorcycle.

How to choose: what to check

1. Weight. The Brompton and Tern examples weigh 17.9 to 22.1 kg.⁵⁶ If you live up stairs, lift one before you buy.
2. Removable battery. If the bike cannot come indoors, you need a battery you can take out to charge. Brompton's clicks off and charges off the bike.⁵
3. Brakes. The examples range from calipers to hydraulic discs; the seated NXT uses drums.⁴⁵⁶⁸ Ask how they perform in rain, and test at low speed.
4. Tire size. Ask for the ISO (ETRTO) size, such as 38-622 (width and bead seat diameter in mm); if the second number matches, the tire generally fits.¹⁰ Check local stock.
5. Rain. Ask for the motor and battery IP rating. In an IP code the first digit rates dust and other solids and the second water; X means not rated, and a water digit of 7 means a 30-minute test at up to 1 m of water (see the IP rating entry).¹¹ For the wet season, see the rainy-season guide on oferoph.com, OFERO’s main site.

Warranty, official shops and price tags work the same way for any ebike; see the ebike buying guide.