FatBoy SS HD Straight Gear Drive V3

Regular price €0.00 incl. 21% VAT
€0.00 excl. VAT

FatBoy SS HD Straight Gear Drive 1:4 ; 1:4,5 ; 1:5 ratio for FatBoy 300 or 320 hangers or Trampa Vertigo - Infinity Precision ATB Truck , works with MBS Rockstar II Hub or Trampa SuperStar Hub .  - the new HD gear drive from 3DServisas featuring thick gears and reinforced design new materials Aluminium EN AW-6082-T651 and better efficiency and durability of the gear system. 

All parts are made in the EU

After purchase will be shipped within a 2-3 week period

Motor, wheel hubs , spacers , baseplate MBS , bumpers don't include in the kit!

Motor Fitting:

FatBoy 300  6355, 6365, 6374, 6380, 6384, 6396, 63100, 6880
FatBoy 320  6355, 6365, 6374, 6380, 6384, 6396, 63100, 6880
Infinity ATB
 6355, 6365, 6374, 6380, 6384, 6880, 6396

Using Maytech motors or other motors with axle length <=25mm doesn't require cutting off the motor shaft!

Easy steps to assemble:

  • Add thread lock (Loctite 648) on the motor shaft, insert the key into the keyway slot.
  • Push the motor shaft with the key into the drive gear.
  • Add thread lock (Loctite 648) to motor screws, screw the motor to the mount.
  • Liberally add the provided grease after everything has cured.
  • Close the gear drive.
  • Make sure you add a little bit of grease under the V-Groove ring!
  • Mount it on the baseplate.
  • Ride and enjoy!


  • Out of the box support for 63 - 68 mm motors .
  • Aluminium reinforced wheel spur gear, a lot sturdier truck mounting system.
  • New Black colour casing from a new material which his highly durable scratch and impact resistant with sound dampening properties
  • New lubrication system which utilizes small volume inside gear drive which allows more efficient lubricant usage
  • The motor spur gear is now locked with a keyway which stops all gear slippage on the motor shaft.
  • Laser Cut Stainless Steel protection plate for smooth v-ring operation.
  • Ultra Slim Design with a total height of 119mm (4.69")
  • No modifications required for the trucks plug and play.
  • Whole kit weights 1480g.

Kit Contains

  • 2 x Baseplates Gears Drive
  • 2 x Hanger mount adapters (Three positions -15º, 0º, +15º)
  • 2 x Black Gear Drive Covers
  • 2 x Aluminium Motor Spur Gears  8mm shaft 
  • 2 x Wheel Spur Gears
  • 2 x Wheel Spur Gear Reinforcement plates
  • 2 x Wheel Mount Plates (Trampa SuperStar / FatBoy Solid Core Hubs)
  • 2 x Stainless steel protection plates
  • 2 x V-Rings
  • 2 x FatBoy 320 Hanger (Compatible with MBS Metal Matrix II Top Truck you can purchase baseplates from here)
  • Screws and Accessories
  • Gear lubrication

Motor spur gear hole re-machining to 10mm with keyway here

Bumper files for printing can be found here