Aventon Aventure 3: parts and specs
Replacement parts and specs for the Aventon Aventure 3: 26 x 4.0 Inova tires and Aventon's 26 x 4.00 tube, Tektro HD-E3520 brakes with 180 mm rotors, 8-speed Shimano cassette, BC280 display, 36V 20Ah battery and 42V 4A charger.
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Tools
This page lists the common replacement parts for the Aventon Aventure 3 fat-tire bike, step-over and step-through. Specs are for the stock bike as sold; check your own bike before you buy. Full specs are on the Aventure 3 spec page. 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.
Photo needed: The Aventure 3 from the side, showing the 4 inch tires.. Add one
Electrical parts on this list must match this exact model, and they are fitted at the external plugs or by a pro. Never open the battery, controller, motor or display. For battery and charger trouble, start with battery won't charge and e-bike battery care.
Parts list
- Tire: Inova 26 x 4.0, puncture resistant. Aventon's tire for the Aventure, Aventure 2, Aventure 3 and Aventure M, SKU 19300-1000257, is $56.99 each, read Nov 9, 2026.
- Inner tube: Aventon's 26x4.00 inner tube, SKU 30342-2640005, fits the Aventure, Aventure 2, Aventure 3 and Aventure M, $21.99, read Nov 9, 2026.
- Brake rotor: Tektro 180 mm 6-bolt, front and rear. Aventon's 180 mm rear rotor, SKU 19003-8000083, fits all Aventon e-bikes except the Soltera 7S, Soltera SS and eMTBs, $9.99 but sold out, read Nov 9, 2026.
- Disc brake caliper: Tektro HD-E3520 hydraulic, front and rear. Aventon's Hydraulic Brake Complete Set comes as a Tektro front with sensors for the Aventure 3, $45.99, and a Tektro rear with sensors, $55.99, read Nov 9, 2026.
- Chain: 7/8 speed, 118 links. Aventon's 7/8 Speed Chain comes in a 118L length, $15.99, read Nov 9, 2026.
- Cassette: Shimano CS-HG200-8, 8-speed, 12 to 32T, Shimano Altus derailleur, 48T chainring. Aventon's cassette for the Aventure 3, SKU 19300-1000193, is $16.99, read Nov 9, 2026.
- Hub motor: 36V, 750 W rear hub, 80 Nm.
- E-bike display: Aventon BC280. The Aventon Full Color Display, BC 280 comes in a Level 3, Aventure 3 and Aventure M version, SKU 19004-2100092, $69.99, read Nov 9, 2026.
- Throttle: Aventon left-hand handlebar throttle. The Aventon Throttle for the Aventure 3, SKU 19004-5200022, is $17.99, read Nov 9, 2026.
- Pedal assist sensor: double-sided bottom bracket torque sensor.
- E-bike charger: 42V, 4A output. Aventon's Battery Charger for the Aventure 3, SKU 19004-7000062, is $60.99, and the Fast Charger fits the Aventure 3, $259, read Nov 9, 2026.
- E-bike battery: removable internal 36V, 20Ah, 733Wh with LG 21700 cells. The Extra Aventon Battery for the Aventure 3, SKU 19004-4100152, is $499, read Nov 9, 2026. Aventon's Battery Cover Assembly fits the Aventure 3, $10.99, read Nov 9, 2026.
- E-bike lights: front and rear lights integrated. Aventon's Integrated Headlight for the Aventure 3, SKU 19004-6100052, is $12.99, and its Integrated Taillight comes in left and right Aventure 3 versions, $9.99 each, read Nov 9, 2026.
- Pedals: 9/16" alloy platform. The Aventon Pedal Set for the Aventure 3, SKU 19006-2000020, is $8.99, read Nov 9, 2026.
Tools for common jobs
- Hex keys: caliper, stem and handlebar bolts.
- Tire levers: changing a tube.
- Floor pump with gauge: setting pressure within the sidewall range.
- 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.
- Pedal wrench: swapping the 9/16" pedals; see replace pedals.
- Brake pad spreader: resetting the pistons before new pads.
- Brake bleed kit: bleeding when the Tektro lever feels soft; 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 at the listed length.
- Multimeter: testing charger output at its plug, as shown in check your charger. Never probe the battery.
Where to buy
- Aventon's inner tube page, displays page and batteries page; also its tubes page.
- Independent sellers: parts suppliers.
- A shop or Aventon dealer can order and fit parts: find a shop.
Common repairs
- Aventon troubleshooting and e-bike error codes
- Replace disc brake pads, bed in disc brakes and fix a spongy brake lever
- Bleed Tektro brakes
- Fix a flat on a rear hub motor wheel and set tire pressure
- Clean and lube the chain, check and replace the chain and adjust the rear derailleur
- Check your charger and check the brake cutoff and throttle
Sources
- Aventure 3 spec page, aventon.com
- 26x4.00 inner tube, aventon.com
- tubes page, aventon.com
- displays page, aventon.com
- Aventon Full Color Display, BC 280, aventon.com
- Battery Cover Assembly, aventon.com
- batteries page, aventon.com
- tire, aventon.com
- 180 mm rear rotor, aventon.com
- Hydraulic Brake Complete Set, aventon.com
- 7/8 Speed Chain, aventon.com
- cassette, aventon.com
- Aventon Throttle, aventon.com
- Battery Charger, aventon.com
- Fast Charger, aventon.com
- Extra Aventon Battery, aventon.com
- Integrated Headlight, aventon.com
- Integrated Taillight, aventon.com
- Aventon Pedal Set, aventon.com
Stuck after these checks? Find a shop near you.
If these steps didn't fix it, find a shop near you in our partner network. For battery or wiring trouble, look for shops marked Battery and electrical.
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