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Brompton Direct-Drive Motor SuperH Kit

Front Brompton SuperH Conversion Kit with 250-500 Watt Direct Drive Hub Motor, your choice of UART display, Lithium Battery, V6 Baserunner Controller, and PAS/Torque Sensor Options.

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From USD$715.00

To USD$2,406.50 Regular Price USD$2,521.50

In stock

SKU
KIT-Brompton_SH
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Customize Brompton Direct-Drive Motor SuperH Kit

The small SAW20 brompton motors come in a fairly fast 12 rpm/V winding speed and are prelaced in a 16" ETRTO349 rim.
The M10x1mm axle has 8mm flats on it and comes with a custom made tabbed washer to engage with holes in the brompton fork and provide axle spinout resistance.

Crystalyte SAW20 Fast Wind for Bromptons

Crystalyte 20mm SAW Motor, Fast 13RPM/V Wind in 16'' ISO349 rim. Narrow 75mm Axle with 8mm Axle Flats for Brompton Fork.

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Crystalyte 20mm SAW Motor, Fast 13RPM/V Wind in 16'' ISO349 rim. Narrow 75mm Axle with 8mm Axle Flats for Brompton Fork.

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8mm Torque Arm Plates for Brompton Motors

Pair of stainless steel torque arm plates for narrow SAW / NSM motors with small 10mm axles with 8mm axle flats, with bent tab specifically to fit forks of Brompton folding bicycles. Full Product Information Page

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Pair of stainless steel torque arm plates for narrow SAW / NSM motors with small 10mm axles with 8mm axle flats, with bent tab specifically to fit forks of Brompton folding bicycles. Full Product Information Page

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The Baserunner Z9 Stand Alone controller supports up to 55A peak phase currents and should be screwed to the aluminum mounting bracket for heat sinking. The battery lead is terminated with anderson powerpole connectors. 

V6 Baserunner_Z9 Stand Alone

Grin Baserunner V6 Compact FOC Motor Controller with Z910 Motor Plug, 55A Peak Phase Current. Special Stand-Alone Model with All Cables Exiting the Front. Includes 90cm Long Battery Lead. For 24-52V Batteries (60V Max Input). 

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Grin Baserunner V6 Compact FOC Motor Controller with Z910 Motor Plug, 55A Peak Phase Current. Special Stand-Alone Model with All Cables Exiting the Front. Includes 90cm Long Battery Lead. For 24-52V Batteries (60V Max Input). 

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Baserunner Brompton Fork Mount

Aluminum Mounting Bracket for Baserunner Attachment to Brompton Bicycle Forks Fender Bolt. 

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Aluminum Mounting Bracket for Baserunner Attachment to Brompton Bicycle Forks Fender Bolt. 

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Several display options are available to show basic information like bicycle speed, motor power, trip distance etc. through communication with the motor controller. The displays also provide the on/off power switch for the system and have up/down buttons to cycle through between 3 to 9 levels of pedal-assistance.

Colour Display with Integrated Up/Down and Power Buttons for Grin Super-H Kits.  Mounts Beside Hand Grip. Customized Version of 600C for Grin Tech, Works up to 72V and Shows Regen Current. 

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Colour Display with Integrated Up/Down and Power Buttons for Grin Super-H Kits.  Mounts Beside Hand Grip. Customized Version of 600C for Grin Tech, Works up to 72V and Shows Regen Current. 

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Superharness for Brompton

Advanced Harness for Connecting Standard Displays, Throttles, Brakes, and Lights. Special Short 40cm Cable for Brompon Bikes. 

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Advanced Harness for Connecting Standard Displays, Throttles, Brakes, and Lights. Special Short 40cm Cable for Brompon Bikes. 

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Throttles, ebrake levers, pas sensors, and torque sensors all play a roll in how you interact with the ebike. The Torque or PAS sensor plugs in directly to the motor controller and provide assistance based on the assist level of the display, while throttle and ebrakes hook up to the Main9 Superharness.  If you are confused about the PAS and Torque sensor options, please see our pedal sensor info page.  Regenerative braking can be controlled either with a digital brake sensor and modulated with the throttle, with an analog brake sensor that produces a varying signal directly, or without a brake sensor using one of the bidirectional throttles instead (the DYOL throttle is the preferred choice for regenerative braking in the Brompton kit).

Universal Lever Thumb Throttle with Clamp On Handlebar Mount and 3 pin HiGo style connector

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Universal Lever Thumb Throttle with Clamp On Handlebar Mount and 3 pin HiGo style connector

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6 Pin HiGo MiniB Extension Cable, 44cm

44cm Long Extension Cable with 6 Pin HiGo MiniB Compatible Connectors, for Optional use with our Superharness

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44cm Long Extension Cable with 6 Pin HiGo MiniB Compatible Connectors, for Optional use with our Superharness

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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.  

If you are looking to get the kit with a pilot batch of our Air Travel friendly LiGo 10X batteries instead, don't select any battery here. Instead use the LiGo 10X battery store page to separately add the pack to your cart.

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.  

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Bike tracker that works with Apple Find My  

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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 or Superharness. StVZO Compliant.

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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.

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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  

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180cm DC Accessory Extension Cable

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

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

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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. 

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

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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. 

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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

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Schwalbe Big Apple 26" x 2.15 Puncture Resistant Tire. 

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Your Customization
Typical Brompton setup - some parts shown are options
Brompton Direct-Drive Motor SuperH Kit

In stock

USD$740.00

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Actual cruising speed/perfomance under any loading conditions is well modeled in our simulator.
Launch Motor Simulator with Brompton Direct-Drive Motor SuperH Kit

Summary
  • Front Direct Drive Wheel:
    1 x Crystalyte SAW20 Fast Wind for Bromptons
    SKU#: M-MSAW20F16_Br
  • Brompt Torque Arms:
    1 x 8mm Torque Arm Plates for Brompton Motors
    SKU#: TA-TorqArm_8mm
  • Z9 Controller SA (V6):
    1 x V6 Baserunner_Z9 Stand Alone
    SKU#: C-BRZV6_SA
  • Controller Mounting Bracket:
    1 x Baserunner Brompton Fork Mount
    SKU#: Msc-BRBromptPlate
  • Display Model:
    1 x 600C Integrated Handlebar Display and Switch
    SKU#: DSP-600C
  • Display Harness Brompton:
    1 x Superharness for Brompton
    SKU#: W-M9SHarness_Br
  • Throttle Style (Higo):
    1 x Thumb Throttle with Clamp (40cm Cable, Higo Plug)
    SKU#: T-CLever_HG3
  • PAS Extension Cable:
    1 x 6 Pin HiGo MiniB Extension Cable, 44cm
    SKU#: W-HiGo6_Ext_44

Front wheel conversion kit for Brompton folding bicycles based around a 250-500 watt Direct-Drive Crystalyte motor laced in a 16" ETRTO 349 rim. Motor axle is 75mm long with a 3/8" axle ground to 8mm on the flats, and fits in the Brompton fork with no modifications. A pair of torque arms mate with the dropout's anti-rotation hole to prevent spinout.

The compact Baserunner mounts on a custom bracket behind the fork and does not interfere with the folding. The Brompton SuperH kit with your choice of UART display, battery pack, and PAS/Torque sensor options. The basic display kits have a modern looking screen but are not as customizable as our Cycle Analyst systems. Please see our Kit Styles page for more details.  

For details on the PAS/Torque sensor selection, see the Advanced PAS Kit Info Page

See our Brompton Kit Info Page for full description and details.