RFTF20101 / RFTF40101 (For E Ride Pro SS 3.0 / SR with type 1 brakes)
RFTF20808 / RFTF40808 (For E Ride Pro SS 3.0 / SR with type 2 brakes)
REF201 / REF301 (For Stacyc-style Electric balance bikes) (video)
RFF20202 / RFF30202 (For SUR-RON / TALERIA)