Have it on my mini rotor urban express. Was running a small pulley previously. This ninja star leaves a lot to be desired. Can only get two wraps of rope around it. Rope commonly jams and inevitably breaks the rope. Part of the cost is in the cloth sack it comes in. Would rather pay more for something I can easily wrap more rope around...
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works with HPI rotor weight as well
September 24, 2020
taco eater :
Eames from CA
I was able to get this ninja star to work with my flat reed derbi that has an HPI mini rotor that also has the magneto weight.
the tricky part is that one of the bolts interferes with the ninja star mounting bolt. you have to dremel down the bolt head a tad to make space for the ninja star mounting bolt. the star will sit on top of the weight mounting bolts and itll still work.
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Works great
June 27, 2016
taco eater :
Shane J from WI, United States
make sure your bike is dialed! or close! then put this on your HPI, delete your hobbit starter shoes, and never look back. 2-3 pulls im started and running, put the piece of rope in your pocket and you gone. steal that pull cord off your POS mower, you dont even mow your grass anyway cus your lazy and too busy fixing your busted moped.
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Can't get much better
May 22, 2016
taco eater :
Anonymous Person from Derry, NH United States
I absolutely love this thing
Allows me to remove the pedals, and the starter plate on my E50... which also gave me more shim clearance for my new needle bearing clutch bell! (I just kept only the bearing side clearances in check)
I would suggest gingerly rounding the corners just enough so it doesn't destroy your cord, mine were a little sharp
3/16" is about the right size cord
If you have an HPI this is a must
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Mother fucking beyblade
April 5, 2016
taco eater :
Dead possum from Richmond , VA United States
Dude the beyblade for the fucking win!!! This thing will leave your opponents behind. Cause you blasted em. No starter clutches dude. Bring your moped into the now.