Reference

Giant Stormguard E+ 1 (2024): parts and specs

Replacement parts and specs for the 2024 Giant Stormguard E+ 1: Maxxis Rekon 27.5 x 2.6 tubeless tires, Shimano Deore BR-MT520 brakes with 203 mm rotors, Shimano CUES 11-speed, RideDash EVO, EnergyPak 800Wh battery and 6A charger.

Last edited Nov 9, 2026 by Pedalwise team Edit History Add a subpage

The Pedalwise team started this page from official manuals, support pages and repair videos. Fixed this yourself, or spotted something wrong? Help improve it.

Specs are for the stock bike as sold; check your own bike before you buy.

This page covers the 2024 Giant Stormguard E+ 1, a full suspension trekking e-bike with fenders and lights. It runs the Giant SyncDrive Pro2 mid-drive motor (85 Nm), built by Yamaha; see Yamaha e-bike motors explained. The front wheel uses a 15 x 110 mm thru-axle. On the Stormguard E+ 2 and other years, match the parts on your bike before you order.

Photo needed: The Stormguard E+ 1 from the drive side, showing the fender-mounted taillight and 11-speed cassette.. 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: Maxxis Rekon, 27.5 x 2.6, 60 TPI, foldable, tubeless ready, EXO.
Tubeless sealant: the bike ships with a tubeless kit (sealant, valves, levers and tool).
Disc brake pads: Shimano BP-D03S-RX resin or BP-D02S-MX metal, both without fins.
Brake rotor: 203 mm.
Disc brake caliper: Shimano Deore BR-MT520, 4-piston hydraulic.
Brake lever: Shimano Deore BL-MT501.
Chain: Shimano LinkGlide CN-LG500.
Cassette: Shimano CUES LinkGlide CS-LG400, 11-speed, 11 to 45T, with a Shimano CUES LinkGlide Shadow RD+ derailleur.
E-bike display: Giant RideDash EVO, 3 inch full-color LCD with navigation, and the RideControl Ergo 2 remote with USB-C.
E-bike charger: Giant EnergyPak 6A smart charger.
E-bike battery: Giant EnergyPak 800Wh, 22700 cells, aluminum casing; takes the EnergyPak Plus 250 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 M99 Mini Pro headlight and Supernova E3 taillight in the fender.
Grips: Giant Connect Ego Max Plus.
Pedals: nylon platform.
Saddle: Selle Royal Vivo Ergo GTS, on a Giant Contact Switch 30.9 mm dropper.

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.
Shimano: BR-MT520 caliper pad details.
Independent sellers: parts suppliers.
A Giant dealer orders and fits the battery, charger and RideDash parts: find a shop.

Common repairs

Sources

Stuck after these checks? Find a shop near you.

Need a pro?

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.

Talk

Questions, things that worked for you, or something that looks wrong on this page.

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