miranda/ktm crank arms

[Hurrellmc'burrell]

Hi guys been looking for shorter crank arms for my bosch powered cube e bike and these are the cheapest i can find at £35.00 which is nearly half the price the normal miranda 160 mm crank arms come in at but after phoning merlin cycles to see if they fit on my cube e bike they couldnt tell me if they fitted so does anybody know if they do actually go on to my cube e bike i would think so myself as ktm use bosch motors on their e bikes but im not 100 percent sure any help or advice would be gratefull thanks.

 

[Doomanic]

I've got them on my Trek with the Bosch Motor.

You need to check the Q-Factor.
The dimension you need is the one on the top left of the following (generic) image;

If you can measure that I can tell you if the cranks from Merlin Cycles are correct as I have a set on my Trek.

 

[Hurrellmc'burrell]

hi mate thanks for the help ive measured it the best i can and the measurement you said about top left where in the diagram it says 16.1 mine were 11 mm cog side and 12 mm non cog side hope thats helpfull this whole Q factor seems very complicated to me tbh lol

 

[eFat]

The top left value on this pic gives the Q-factor for Miranda reference but in the end the important ones are the two on the right. 10.5 or 16mm to clear the motor housing on the left and the other to clear the rear part of the frame.

 

[outerlimits]

I think the KTM ones are Q8’s

 

[Hurrellmc'burrell]

ok guys thanks for your help