Giant Explore E+ 1 (2026): parts and specs
Replacement parts and specs for the 2026 Giant Explore E+ 1: Crosscut Gravel 2 700 x 57c tires, Shimano Deore BR-MT420 brakes with 203 and 180 mm rotors, Shimano CUES Di2 11-speed, EnergyPak 800Wh battery and 4A compact charger.
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Specs are for the stock bike as sold; check your own bike before you buy.
This page covers the 2026 Giant Explore E+ 1 Double Diamond, a trekking e-bike with a 100 mm SR Suntour XCR34 fork, rear rack and lights. It runs the Giant SyncDrive Pro2 mid-drive motor (85 Nm), built by Yamaha; see Yamaha e-bike motors explained. The wheels use a 15 x 110 mm front and 12 x 148 mm rear axle. On the Explore E+ 1 Stagger, the Explore E+ 2 or 3, or an earlier GTS or STA model, match the parts on your bike before you order.
Photo needed: The Explore E+ 1 from the drive side, showing the rack-integrated taillight and electronic rear derailleur.. Add one
Electrical parts on this list must match this exact model and are fitted at the external plugs or by a pro. Never open the battery, controller, motor or display. Motor and battery service on this bike is dealer work: a Giant dealer reads faults and updates firmware with its diagnostic tool.
Parts list
- Tire: Giant Crosscut Gravel 2, 700 x 57c, wire bead, tubeless ready, reflective strip.
- Disc brake pads: Shimano BP-D03S-RX resin or BP-D02S-MX metal, both without fins.
- Brake rotor: 203 mm front, 180 mm rear.
- Disc brake caliper: Shimano Deore BR-MT420, 4-piston hydraulic.
- Brake lever: Shimano BL-M401.
- Chain: Shimano LinkGlide CN-LG500.
- Cassette: Shimano, 11-speed, 11 to 45T, with a Shimano CUES Di2 11-speed rear derailleur.
- E-bike display: Giant RideDash EVO 2.0 color LCD with navigation, with RideControl Go 2 and Ergo4 remotes.
- E-bike charger: Giant EnergyPak 4A smart charger compact. Giant's Smart Charger Compact 4A fits newer Giant e-bikes with EnergyPak Smart batteries; no price showed, read Nov 9, 2026.
- E-bike battery: Giant EnergyPak 800Wh, alloy casing (EN50604); takes the EnergyPak Plus 200Wh range extender. Giant's EnergyPak Smart 800Wh battery lists at $1,200 MSRP, read Nov 9, 2026; confirm it fits your frame with a Giant dealer before you order.
- E-bike lights: Supernova Mini 3 headlight and a rack-integrated taillight.
- Grips: RideControl Ergo4 integrated trekking grips with bar ends.
- Pedals: VPE-537 PP platform.
- Saddle: Selle Royal Vivo Ergo Moderate, on a Giant Contact Switch dropper with 100 mm travel.
Tools for common jobs
- Hex keys: caliper, stem, handlebar and seatpost bolts.
- Tire levers: changing a tube or seating a tire.
- Floor pump with gauge: setting pressure within the sidewall range.
- Torque wrench: brake, stem and pedal bolts, to your manual's values.
- Pedal wrench: swapping pedals; see replace pedals.
- Brake pad spreader: resetting the pistons before new pads.
- Brake bleed kit: bleeding the Shimano brakes, which use mineral brake oil; see bleed Shimano brakes.
- Chain checker: catching chain wear early.
- Chain lube: after cleaning and wet rides.
- Chain tool: sizing a new chain.
- Multimeter: testing charger output at its plug, as in check your charger. Never probe the battery.
Where to buy
- Giant: the EnergyPak Smart 800Wh battery and Smart Charger Compact 4A.
- Shimano: BR-MT420 caliper pad details.
- Independent sellers: parts suppliers.
- A Giant dealer orders and fits the battery, charger and Di2 parts: find a shop.
Common repairs
- Giant SyncDrive troubleshooting and update e-bike firmware
- Replace disc brake pads, bed in disc brakes and fix a spongy brake lever
- Set tire pressure and e-bike flat tire
- Clean and lube the chain, check and replace the chain and adjust the rear derailleur
- Battery won't charge and e-bike battery care
Sources
- giant-bicycles.com
- BR-MT420, bike.shimano.com
- Smart Charger Compact 4A, giant-bicycles.com
- liv-cycling.com
- EnergyPak Smart 800Wh battery, giant-bicycles.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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