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  • Image 1
  • Left side of 2 stage Small Block drive
  • Optional PAS ring, sensor and ISIS adapter hub.

Two Stage Small Block Mid Drive


Product Description

Two stage Small Block mid drive. This bottom bracket drive with two stages of reduction is meant to synchronize motor speed with pedaling speed. At 2500 watts the Small Block Motor is still very powerful compared to most mass market mid drives. This drive can be used with a motorcycle type twist throttle, optional PAS pedelec system, or both. This is an excellent drive for someone who wants a high performance mid drive where they can still contribute with pedal power and get a workout. Legal on public roads only with an optional power limiting switch to reduce motor power to conform to your local legal limit. 


Kit includes:
Small Block Motor with Stainless 12mm Axle
Aluminum Alloy Assembly with 15mm Chromoly Axle
ISIS Bottom Bracket (68mm-100mm) 
Chain Wheel Assembly with Standard ACS Freewheel (White Industries HD available option +$52)
DID #219 kart chain primary and secondary reduction
Aluminum guards
Necessary Hardware, 4mm Keys & Spacers

Recommended Accessories: 12 FET 40A Controller, CA3 - DPS, and throttle.

Small Block Motor:
Dimensions: 127mmx127mmx78mm
Weight: 3kg
Voltage Range: 36V-84V
kV: 67 rpm/volt
Operating amps: 40A continuous, 50A burst
Magnets in armature, windings in case
4 magnetic pole pairs
Hall censored

The small block will run at 40amps continuous at 36-84volts.


Please allow 30 days for production, each kit is custom and made to order.

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