Hi Sorry about the delay , just saw this post.
The bracket suits the dual or triple freewheel, not the single chainwheel, so yes you need 2 chains as well.
We have also noticed that their is a significant efficiency improvement when not having to run a chain tensioner. We have also noticed an efficiency improvement in using our oil conversion kit for the gearbox, which we will be releasing soon for high power and high mileage motors.
Grease is not suited to high rpms and also has high parasitic losses compared to oil , normally for high power motors this is not much of an issue, but when you have limited motor power and battery capacity, the increase in efficiency is actually quite significant.
We have not exactly quantified this improvement yet, the initial testing is showing some good gains, but we will try and get some exact numbers on these efficiency improvements soon.
Did you just contact us on ebay also ? if so i have answered some of your questions their.
If you have any other pricing questions email us on firstname.lastname@example.org
for the latest pricing.
APPLIED FUTURE TECHNOLOGIES
Specialising in high performance and high efficiency custom electric mid drive conversions kits.
Website : Af-tech.com.au
Email : Aft_ebike@hotmail.com
Since 2009 we have reached 8000km of real world reliability and efficiency improvement testing on our mid drive kit and testing is an ongoing process …. Our Ethos "Proven design through long term real world reliability testing"