E-Bike Parts Compatibility & Install Guide: Surron, Super73 & Universal Builds

Which 73 Supplies Parts Fit Your Bike?

Shopping e-bike parts gets confusing fast — connectors vary by brand, plug types differ, and compatibility isn't always obvious from a product title alone. This guide breaks it down bike by bike so you know exactly what fits before you order.


🔌 Throttle Compatibility — Surron & Macfox

Plug and Play Surron Throttles

Our full twist throttle is engineered for smooth, responsive acceleration and comes in two plug variants to match your bike's connector:

  • Super73 variant — 3-pin female connector (fits Super73 wiring harness)
  • Macfox variant — 3-pin male connector (fits Macfox wiring harness)

⚠️ Note: Does not include a grip — install onto your existing grip or purchase separately.

Install Steps

  1. Power down your e-bike completely.
  2. Slide your existing throttle off the handlebar (loosen the clamp screw if needed).
  3. Slide the new throttle onto the bar and tighten the clamp — snug, not over-torqued.
  4. Route the throttle cable away from heat sources and moving parts.
  5. Plug the 3-pin connector into the matching harness connector on your bike — it clicks into place.
  6. Power on and test: roll the throttle slowly from 0 to full and confirm smooth, linear response.

What's included: Throttle unit with pre-attached cable and plug.
Not included: Handlebar grip.

→ Shop Surron Throttle


💡 Light Compatibility — Super73

Plug and Play Super73 Baja Light

Designed specifically for Super73 e-bikes, the Baja Light delivers a brilliant, wide-coverage beam for dawn rides and night commutes. Premium materials, vibration-resistant build, mounts clean to the front of your Super73.

Compatible with: Super73 models (plug-and-play connector).
Not compatible with: Surron or Macfox without modification.

⚠️ Notes:

  • Does not include blue titanium hardware.
  • Blue bolts not yet included — standard hardware ships with the unit.

Install Steps

  1. Power down your Super73.
  2. Unplug your old light 
  3. Align the Baja Light to the mount and secure with the included hardware.
  4. Mount the light to your bars with the zip 
  5. Power on and confirm the light activates with your bike's ignition.

What's included: Baja Light unit, mounting hardware.
Not included: Blue titanium, blue bolts.

→ Shop Super73 Baja Light


🔦 Universal Light — Fits Any Build

Battery Powered Squadron Light (Universal)

This is your go-to if you ride a Surron, a custom build, or anything that doesn't have a factory light harness. Battery-powered and self-contained — no wiring into your bike's electrical system required. High-efficiency LEDs throw thousands of lumens in a wide, clean beam. Sealed housing handles weather, vibration, and off-road abuse.

Compatible with: Any e-bike — Surron, Super73, Macfox, custom builds. Mounts to handlebars or upper crown.

⚠️ Note: Batteries are not included — check the product listing for the correct battery type before ordering.

Install Steps

  1. Insert the required batteries (not included — confirm size on the product page).
  2. Choose your mount location: under bike frame if you have one without switch on your motocutz/odi plate with sticky tape if you have with switch 
  3. Angle the light head down slightly — aim for ~10–15 ft ahead of your wheel at riding speed.
  4. Power on and test beam output and switch function.

What's included: Squadron light unit, handlebar/crown mount, strap.
Not included: Batteries.

→ Shop Squadron Light


Quick Compatibility Reference

Part ridstar Q20 Super73 Macfox
Surron Throttle ❌  ✅ (select Super73 plug) ✅ (select Macfox plug)
Super73 Baja Light ❌ ✅ Plug & Play ❌
Squadron Light ✅ ✅ ✅

Still Not Sure What Fits?

If your bike model or connector type isn't listed here, reach out before you order — we'd rather confirm fitment upfront than have you deal with a return. Browse the full catalog at 73 Supplies and check each product page for the most current variant options.