BBSHD Fever in KC.

[Grendelssen]

Thanks for the insight.

[Grendelssen]

JP thank you for your input buddy. Good advice on keeping it clean.

[JPLabs]

Yes, the jam nut only keeps the main nut from loosening. Locktite can also do that, so the jam nut could be ommitted if you have to, and use blue Locktite. I'd rather have the nut if possible. Helps keep it clean too.

[Grendelssen]

Thanks Max!!! Any input at this point is super appreciated.

[max_volt]

The jam nuts on mine didn't stop looseness. Some loketite and getting the main nut pretty, pretty, pretty tight is what made it hold.

[Grendelssen]

I suppose what I'm most concerned with now is if there are enough threads to only put the inner nut onto the bottom bracket. This thread reduction is from me using the 4mm, 2mm and also a 1mm space to get the chainring enough clearance from the chainstay.

[Grendelssen]

Sorry, I guess the proper term is chainstay. I've taken some pictures and have decided to go with the Eclipse chainring.

[artdrectr]

#2: Describe ‘chain-guard’.

[Grendelssen]

Hello everyone, I'm so glad to be here. I definitely have the Ebike fever and I haven't even ridden my build yet. I've purchased and already received my BBSHD (hotrod programmed) along with the Luna Eclipse 48 tooth chain-ring and Luna's own 52v 17.5ah triangle battery pack. I plan on installing this setup on my Specialized Rockhopper Comp hardtail but I can already see I may have made a mistake with some of my purchases.

#1 - My bottom bracket is 73mm and I ordered the BBSHD from Luna for the standard or smallest size of 68mm-73mm. Is it necessary or vital to return it and instead get the mid-size BBSHD of 73mm-110mm?

#2 - I've taken and installed the motor without tightening into place at all. My first issue is that the super nice looking and expensive ( also allows fastest speed I understand) Luna Eclipse chain-ring I bought won't install onto the motor face without also making full contact with the metal chain-guard. I understand when I actually install it I could use the 3mm spacer to give me some clearance back away from the chain-guard. My question is will this alter the chain-line enough that I won't be able to shift thru all 9 gears? Would ordering the 73mm-110mm provide any solution to the chain-ring/chain-guard clearance issue and/or will this also alter the chain-line as well? Would it benefit me to buy a chain-ring with less teeth (smaller diameter to avoid chain-guard flare)?

I'll get some pictures taken with the motor in so as to have a visual on what's going on. Thanks in advance for any input my friends.