"Mad tailbone" Specialized Demo7+cyclone+active heat sink

Discussions related to motors other than hub motors.
This includes R/C motors, botttom bracket, roller and geared drives.
chupa   1 W

1 W
Posts: 50
Joined: Sep 15 2013 10:33am

Re: "Mad tailbone" Specialized Demo7+cyclone+active heat si

Post by chupa » Apr 22 2015 3:30am

bunya wrote:I have one question about the Mini-E Adappto controller with the cyclone/headline, did you find it to be quieter than the Kelly or standard Cyclone controller? Keep up the great work!
Yes ,but with 'sine' mode...

For reduction of a sound I wrapped the motor and reducer in a plastic cover. The cover have thickness 1sm.
The cover works as damper and reducer sound destroy in the base. Thus vibrations don't extend on a bike frame and the sound is much more silent than the motor without wrapper.


Here I show 3D model of fastening. It is possible to see thickness of walls of plastic in a reducer zone. https://youtu.be/S0qT2C5umKk

1KW   1 kW

1 kW
Posts: 341
Joined: Jul 24 2013 10:23am

Re: "Mad tailbone" Specialized Demo7+cyclone+active heat si

Post by 1KW » Apr 15 2016 7:45am

This bike still being rode, such a sick and inspiring simple build.

aCeMadMod   100 W

100 W
Posts: 221
Joined: Jul 14 2012 1:58pm
Location: Au top end Too hot for lipo burns

Re: "Mad tailbone" Specialized Demo7+cyclone+active heat sink

Post by aCeMadMod » May 19 2018 10:29am

hi how the bike any updates 8)

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