Language
International
  • Compare ()
  • Create an Account
  • Sign In
Toggle Nav
Search
Advanced Search

GMAC Minimal Kit

Rear Geared GMAC Motor Kit. Minimal Parts for Basic Throttle Control.

Full Product Information Page

From USD$770.00

To USD$2,878.50 Regular Price USD$3,053.50

In stock

SKU
KIT-GMAC_Min
Add to Wish List Add to Compare
Customize GMAC Minimal Kit

The GMAC motors are available in 2 different winding speeds (fast and standard) depending on how fast you need to go for a given wheel diameter and battery voltage. In most scenarios, we recommend the fast wind for 20" wheels and the standard winding speed for 26" and larger.

The included splined torque arm fits inside the dropout and fully secures the axle against both forward and reverse torque from regen. 

GMAC Torque Arm Kit - SS

Laser-cut Stainless Steel Splined torque arm hardware assembly designed specifically for our GMAC motors.

Click Here for detailed product info page

Laser-cut Stainless Steel Splined torque arm hardware assembly designed specifically for our GMAC motors.

Click Here for detailed product info page

L10_Extension-short

60cm Motor Phase Extension Cable with Male and Female L1019 Plug

Click Here for detailed product info page

60cm Motor Phase Extension Cable with Male and Female L1019 Plug

Click Here for detailed product info page

You can get a bare hub and lace it into a suitable 36 hole rim yourself, or choose to get a professional wheel build done here at Grin using our stock rim selections and quality Sapim butted spokes.  Our head wheel builder Robert has decades of experience and is renowned for building wheels that are nearly bombproof. 

If you want Grin to do the wheelbuild, be sure to select either the Silver or Black spoke option from the dropdown menu, along with your preferred rim. By default all wheels will be be dished with the rim dead center between the dropouts, if you require some special dishing offset for an oddball frame please mention that in the order comments. If you are doing your own wheel build into your own rim and just require the spokes only, be sure to specify the required spoke length in the order comments to match your selected rim ERD and lacing pattern.

The Baserunner controller is ideal if you are getting a downtube battery as we will mount it inside the battery cradle.  The larger Phaserunner is required if you need an option that can run up to 72V, or if you are using one of the other battery models. It will also produce slightly higher peak torque due to the 90A vs 80A max phase current. 

V6 Baserunner_L10 Field Oriented Motor Controller. Flat Profile Fits Many Downtube Battery Enclosures. L1019 Motor Plug. 80A Peak Phase Currents (~45-50A Continuous), for 24-52V Batteries (60V Max Input).  Full Product Information Page

Click Here for detailed product info page

V6 Baserunner_L10 Field Oriented Motor Controller. Flat Profile Fits Many Downtube Battery Enclosures. L1019 Motor Plug. 80A Peak Phase Currents (~45-50A Continuous), for 24-52V Batteries (60V Max Input).  Full Product Information Page

Click Here for detailed product info page

Aluminum Controller Mount for Reention Poly-DPxC Series Downtube Batteries, Machined to fit Baserunner Motor Controllers

Click Here for detailed product info page

Aluminum Controller Mount for Reention Poly-DPxC Series Downtube Batteries, Machined to fit Baserunner Motor Controllers

Click Here for detailed product info page

Throttles, ebrake levers, pas sensors, and torque sensors all play a roll in how you interact with the ebike. Torque and PAS sensor automatically power the bike whenever you pedal with an assist level controlled by the CA3's MFSwitch, while a throttle gives manual control. Please see our PAS info page for more details on these options

Even if you choose a PAS or Torque sensor as the primary control, we always recommend having a throttle as well. It can be handy to accelerate in tight situations and is great as a back-up if ever the pedal sensor has issues.  

The ebrake levers can be included for a motor safety cutoff whenever you squeeze the brakes. 

9 Pin Mains to Throttle and Ebrake Breakout Cable

9 pin mains to JST-SM throttle, ebrake, and DC jack cable harness, for basic ebike builds with a version v4 or later controller, without a Cycle Analyst. 60cm long.

Click Here for detailed product info page

9 pin mains to JST-SM throttle, ebrake, and DC jack cable harness, for basic ebike builds with a version v4 or later controller, without a Cycle Analyst. 60cm long.

Click Here for detailed product info page

The kit will run with any battery pack from 24V to 52V nominal (and up to 72V with a Phaserunner).
We offer a range of batteries that will work well depending on the geometry of your bike, the range you need on a charge, and how fast you want to go.  Please see our battery info page for more details on the different pack options.  
Be sure to select a charger model that matches the voltage (36V, 48V, or 52V) and connector style (ST3 or XLR) of the chosen pack.  

There are a number of optional electronic and mechanical accessories that can help flush out the build. This includes front and rear bike lights, phone chargers, wire management, programming cables, and what have you. 

Handlebar Phone Mount with both Wireless and USB Charging, Wide 12-95V Input Range.  

Click Here for detailed product info page

Bike tracker that works with Apple Find My  

Click Here for detailed product info page

Wide Voltage Range (6-60V), 3 watt Ebikes Light, Fork Fender mounting. 50cm cable, 5.5x2.1mm DC Jack. On/off Switch, Powers off Cycle Analyst/Anderson Tap. StVZO Compliant.

Click Here for detailed product info page

Super Bright (Max 1900 Lumen) Ebike Light with Handlebar Button and Hi/Low Beam Modes and Daytime Run Lights as Well. 12-60V Input Range with Reflective Cutoff Optics. Plugs Directly to Cycle Analyst.

Click Here for detailed product info page

Main9 to DC 5.5mm x 2.1mm Male Adapter, 1m long. Provides Convenient Power Source for Rear Bike Lights from Unused Main9 Plug in Controllers with V3 Cycle Analyst  

Click Here for detailed product info page

180cm DC Accessory Extension Cable

Click Here for detailed product info page

Rear Ebike Light, No On/Off Push Button, 6-60V Input Range with DC 5.5x2.1mm DC Jack. 

Click Here for detailed product info page

Parallel Anderson Cable for Baserunners Installed in Reention Case. Simplifies Dual Controllers or Dual Battery Systems.  Must be purchased with Baserunner and Reention battery

Click Here for detailed product info page

4 Pieces of Snap Together Black Plastic Cable Raceway, 15 and 20mm Wide, 50cm long. Self Adhesive Tap Bonds to Bicycle Tube, Perfect for Hiding Cable Runs. 

Click Here for detailed product info page

Cable Bundling Kit, includes Spiral Wrap, Zip Ties, and Velcro Sleeves

Click Here for detailed product info page

Laser Engrave 250 Watt Continuous Power Rating on Motor Side Plate.  This is Truthfull. ALL Hub Motors Offered by Grin Have an Operating Point (RPM and Allowable Temperature) Where They Can Only Sustain 250W. 

Click Here for detailed product info page

3m Long TTL-> USB programming cable for Satiator, Baserunner, Phaserunner and Cycle Analyst. *Note: All kits come pre-programmed, and most system behaviour is configurable with the Cycle Analyst buttons. But this cable is necessary if you plan to change more advanced controller settings or update device firmware* Full Product Info

Click Here for detailed product info page

Schwalbe Big Apple 26" x 2.15 Puncture Resistant Tire. 

Click Here for detailed product info page

* Required Fields

Your Customization
9C RH212 Minimal Motor Kit, Basic Throttle Control
GMAC Minimal Kit

In stock

USD$350.00

Unable to add to cart because these items are out of stock:

Actual cruising speed/perfomance under any loading conditions is well modeled in our simulator.
Launch Motor Simulator with GMAC Minimal Kit

Summary
  • GMAC Torque Arm:
    1 x GMAC Torque Arm Kit - SS
  • Extension cable from controller to motor :
    1 x L10_Extension-short
  • L10 Controller:
    1 x V6 Baserunner_L10
  • Baserunner Controller Mount:
    1 x Reention battery baseplate, machined to fit Baserunner
  • 9pin Mains Throttle & eBrake:
    1 x 9 Pin Mains to Throttle and Ebrake Breakout Cable

Conversion kit based around the GMAC geared hub motor for basic throttle control without PAS. Includes high torque motor with locked clutch for regen, downtube battery pack with external Phaserunner controller or integrated Baserunner_L10 motor controller, wheelbuild options. 

For a full explanation of the various drop-down choices and a comparison of this package versus other motor options, see our Grin Kits Info Page