SUPER73 R, RX, R Brooklyn and R Adventure Series: parts and specs

This page lists the common replacement parts for the SUPER73 R series: the R, RX and R Brooklyn, and the R Adventure Series. Specs are for the stock bikes as sold; check your own bike before you buy. Brake pads differ between models, so check your caliper before ordering.

Parts list

• Tire: SUPER73's BDGR Tire 20in. x 4.5in. and BDGR Tire 20in. x 5in. fit all R series bikes, $40 each (regular price $80), read Nov 9, 2026. Other 20 inch tires in 4 to 5 inch widths are sold too, so match the size printed on your sidewall.
• Inner tube: SUPER73's inner tube 20" x 4"/4.5"/5" fits all R series bikes, $10 (regular price $20), read Nov 9, 2026. The valve type isn't stated.
• Disc brake pads: SUPER73's 2-piston ceramic brake pads fit the R and R Brooklyn, $12.50 a pair for one wheel (regular price $25), read Nov 9, 2026. SUPER73's 4-piston ceramic brake pads fit the RX, RX Mojave, RSD X SUPER73-RX Malibu, R Adventure Series (2023 and earlier) and R Brooklyn SE, same price, read Nov 9, 2026. Neither fits Magura brakes, so if your caliper says Magura, ask SUPER73.
• Disc brake caliper: count the pistons on your caliper, or check the pad shape, to pick 2-piston or 4-piston pads.
• E-bike charger: SUPER73's Battery Charger 54.6V 3A fits the R, RX, R Brooklyn, RX Mojave, RX Malibu, R Adventure Series and R Blackout SE, 3-pin plug, $100, read Nov 9, 2026.
• E-bike battery: SUPER73's S2/R Series Battery 48V / 20Ah, 960 Wh, fits all R series and S series bikes, $995, read Nov 9, 2026. It works with 3-pin chargers at 2A, 3A and 5A. The charger and mount are sold separately.
• Throttle: SUPER73's Thumb Throttle fits all R series bikes, $20, read Nov 9, 2026. Check that it matches the throttle on your bars.

Tools for common jobs

• Hex keys: removing the caliper bolts takes a 5 mm hex.
• Torx keys: the pad retainer bolt on 4-piston calipers takes a T15 Torx.
• Brake pad spreader: pushing the pistons back with a piston press before fitting new pads.
• Brake bleed kit: bleeding the brakes. Confirm the brake maker and fluid with SUPER73 first.
• Tire levers: changing the 20 inch fat tire or tube.
• Floor pump with gauge: pumping to the range on your tire sidewall after a tube change.
• Axle nut wrench: removing the rear hub motor wheel to fix a flat.
• Torque wrench: tightening axle nuts and caliper bolts to the values in your manual.
• Chain checker: checking chain wear.
• Chain lube: regular chain care.

Where to buy

• SUPER73's own replacement parts collection sells tubes, tires, brake pads, chargers, batteries and a thumb throttle. Prices and fit notes are on each part's page.
• For a controller, display or motor, contact SUPER73 support so the part matches your bike and model year.
• Independent sellers are listed on our parts suppliers page.
• A local shop can order and fit parts: find a shop.

Common repairs

• SUPER73 troubleshooting, charger light flashing red and motor won't run, brake cutoff sensor
• SUPER73's brake pad replacement guide, plus our replace disc brake pads and bed in disc brakes
• Fix a flat on a rear hub motor wheel and set tire pressure
• Bleed hydraulic disc brakes and fix a spongy brake lever

Sources

• replacement parts collection, super73.com
• inner tube 20" x 4"/4.5"/5", super73.com
• 2-piston ceramic brake pads, super73.com
• 4-piston ceramic brake pads, super73.com
• Battery Charger 54.6V 3A, super73.com
• S2/R Series Battery 48V / 20Ah, super73.com
• brake pad replacement guide, support.super73.com
• BDGR Tire 20in. x 4.5in., super73.com
• BDGR Tire 20in. x 5in., super73.com
• Thumb Throttle, super73.com

Stuck after these checks? Find a shop near you.