Zero FXE Parts & Maintenance Guide (2024)

Complete maintenance guide for the Zero FXE electric supermoto — Gates CDX belt service, Showa SFF-Air TAC forks, J.Juan brakes, and ZF7.2 battery care.

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The Zero FXE is a street-legal electric supermoto — a fundamentally different machine from the Sur-Ron, Talaria, or Segway X260. Built for city riding and mixed terrain: supermoto wheel sizing, a Gates CDX belt drive instead of a chain, and a premium Showa SFF-Air TAC fork package. If you own an FXE, your maintenance approach is different from any other bike in this catalog.

1. Belt Drive — The Core Difference

The Zero FXE uses a Gates CDX carbon drive belt — no chain, no chain lube, no tension adjustments. Longer service life under normal conditions, much less noise, cleaner drivetrain. Belt replacement is more involved than a chain swap (requires removing the rear wheel).

Belt maintenance:

2. Brake System

The FXE runs J.Juan hydraulic disc brakes with larger rotors than the Sur-Ron setup: 260mm front, 240mm rear.

3. Suspension — Showa SFF-Air TAC

The FXE gets Showa SFF-Air TAC 43mm inverted forks — air-sprung, fully adjustable, lighter than spring forks. Key maintenance:

  • Check air pressure before every ride — varies by rider weight, see owner's manual
  • Use a dual-chamber fork pump only — standard spring fork pumps don't work on SFF-Air
  • Fork seals: 43mm seals ($65.99) — replace when oil weeps down the lower leg

4. Wheels & Tires

The FXE runs supermoto sizing — not MX. 19-inch front, 17-inch rear. Standard MX tires don't fit without a wheel swap.

5. Battery

ZF7.2 battery (3.6kWh) delivers 60–90 miles road / 40–60 miles mixed terrain. Replacement: $3,607. Protect it:

  • Store at 40–60% for long-term storage
  • Never below 20%
  • Charge to 100% only when riding the next day

Service Schedule

  • Before every ride: Tire pressure, fork air pressure, brake feel, belt visual
  • Every 20 hours: Brake pad thickness, spoke tension, belt inspection and conditioning
  • Every 40 hours or annually: Fork seal check, DOT 4 brake bleed, pulley check, wheel bearing inspection
  • As needed: Belt replacement when damaged, pulley replacement with belt

Browse the full Zero FXE parts catalog on Wired Whips — OEM and aftermarket parts with verified fitment for the FX and FXE.

Frequently Asked Questions

Does the Zero FXE have a chain?

No. The Zero FXE uses a Gates CDX carbon fiber belt drive — no chain, no lubrication. The belt is maintenance-free under normal use; inspect monthly for cracking or fraying. Replacement belt is $255.99. Replace the rear belt pulley ($160.99) at the same time — running a new belt on a worn pulley accelerates belt wear.

What tire size does the Zero FXE use?

The Zero FXE uses supermoto wheel sizing: 19-inch front and 17-inch rear. OEM tires are Pirelli MT60RS in 100/90-19 front and 130/80-17 rear. Standard MX tires do not fit without a wheel swap.

What brake fluid does the Zero FXE use?

The Zero FXE uses DOT 4 brake fluid in its J.Juan hydraulic brake system. Do not use mineral oil. Bleed annually or any time the lever feels spongy.

How much does a Zero FXE battery cost?

The OEM ZF7.2 battery module (3.6kWh) is $3,607.99. Proper storage (40–60% charge for long-term storage, never below 20%) significantly extends battery life.

What forks does the Zero FXE have?

The Zero FXE has Showa SFF-Air TAC 43mm inverted forks — air-sprung, fully adjustable. It requires a specialized dual-chamber fork pump to service correctly; a standard spring fork pump will not work.

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