Aventon Sinch (first generation): parts and specs

This page lists the common replacement parts for the first-generation Aventon Sinch folding fat-tire bike (2021 to 2022). The Sinch ST and Sinch.2 use some different parts, so pick the plain Sinch entry on each Aventon page. Specs are for the stock bike as sold; check your own bike before you buy. Full specs are in the Sinch manual and the model FAQ. Aventon's parts pages often don't show a price until you pick your model, so where no price is given below, check the page or ask Aventon.

Parts list

• Tire: 20 x 4" with inner tubes, 5 to 30 PSI within the range on the sidewall. Aventon's tire for the Sinch, SKU 19003-4200031, is $30.99 each, read Nov 9, 2026.
• Inner tube: Aventon's 20x4.00 inner tube, SKU 30342-2040006, fits the Sinch, Sinch ST and Sinch.2, $19.99, read Nov 9, 2026.
• Disc brake pads: Aventon's Tektro brake pads fit the Sinch and suit Tektro brakes only, $10.99, read Nov 9, 2026.
• Brake rotor: Aventon's 180 mm rear rotor, SKU 19003-8000083, fits all Sinch models, $9.99 but sold out, read Nov 9, 2026.
• Disc brake caliper: hydraulic disc brakes. Check your calipers before ordering brake parts.
• Hub motor: 48V, 500 W.
• E-bike controller: the Aventon Controller comes in a Sinch ToD version, SKU 30411-4822014, $83.99, read Nov 9, 2026.
• Throttle: thumb throttle by the left thumb. The Aventon Throttle for the Sinch, SKU 30452-0070008, is $10.99, read Nov 9, 2026.
• E-bike charger: 48V output, 3A. Aventon's Battery Charger for the Pace 500, Level and Sinch group is 54.6V, 3.0A, SKU 30470-4803025, $59.99, read Nov 9, 2026.
• E-bike battery: 48V, 672Wh. The Extra Aventon Battery comes in a Sinch version, SKU 30441-4814013, $499, read Nov 9, 2026. Aventon also sells the Aventon Sinch Battery Rail, $15.99, read Nov 9, 2026.

Tools for common jobs

• Hex keys: 3 mm for the display screws, plus stem and caliper bolts.
• Tire levers: changing a tube on the 4 inch tires.
• Floor pump with gauge: setting 5 to 30 PSI, within the range on the sidewall.
• Axle nut wrench: removing the rear motor wheel; check the size on yours.
• Torque wrench: axle nuts, brake bolts and pedals, to your manual's values.
• Brake pad spreader: resetting the pistons before new pads on hydraulic brakes.
• Brake bleed kit: bleeding hydraulic Tektro brakes; see bleed Tektro brakes. Check the fluid with Aventon.
• Chain checker: catching chain wear early.
• Chain lube: after cleaning and wet rides.
• Chain tool: fitting a new chain.
• Multimeter: testing charger output at its plug, as shown in check your charger. Never probe the battery.

Where to buy

• Aventon's tire page, inner tube page, brake pad page, controller page, charger page, battery page and batteries page; also its displays page, tires page and tubes page.
• Independent sellers: parts suppliers.
• A shop or Aventon dealer can order and fit parts: find a shop.

Common repairs

• Aventon troubleshooting and Level.2, Pace, Sinch and Aventure error codes
• Error 25, brake sensor and battery won't charge in the cold
• Replace disc brake pads and bed in disc brakes
• Fix a flat on a rear hub motor wheel and set tire pressure
• Clean and lube the chain and check and replace the chain
• Check your charger

Sources

• Sinch manual, cdn.shopify.com
• model FAQ, aventon.com
• tire, aventon.com
• tires page, aventon.com
• 20x4.00 inner tube, aventon.com
• tubes page, aventon.com
• Tektro brake pads, aventon.com
• 180 mm rear rotor, aventon.com
• Aventon Controller, aventon.com
• displays page, aventon.com
• Battery Charger, aventon.com
• Extra Aventon Battery, aventon.com
• batteries page, aventon.com
• Aventon Throttle, aventon.com

Stuck after these checks? Find a shop near you.