Hey
@Volvo245 &
@Cowardlyduck,
Thanks for the responses they were both very helpful.
After reviewing what you've both said & researching the options from Grin I've chosen some different components for my build.
I'm unsure if the Phaserunner or Frankenrunner controller from Grin would be more appropriate for my planned setup.
Also to my understanding, the fast wind motor option should be more appropriate for smaller wheel sizes.
At this point I'm planning on either using 20" x 2.5" bmx street tyres on the front and rear or alternatively a 20 x 2.5" tyre on the front and a 20 x 2.6 - 2.75" tyre on the rear.
Do you guys think it would help with the structural integrity, stability or steering ability of the bike if I was to try to replace/upgrade the chromoly front fork and/or handlebars?
Any other ideas that would help make the bike stronger or more stable at speeds of 40km+/h?
I don't plan on riding it that fast, I'd just like to be able to cruise at 35km/h with access to more speed/quick acceleration if necessary.
I plan on primarily using throttle only with occasional pedalling, will a 7 speed cassette be fine or would I be better off with a single speed, 9 speed, 10 speed etc?
From what I've calculated the components I'm looking at now will be capable of delivering a top speed of around 45-50km+ under a 120kg total load.
Do you guys have any recommendations for torque arms?
My apologies in advance for all the questions and the wall of text.
These are the components I'm planning on ordering/using now:
Controller - Grin Phaserunner/Frankenrunner
Phaserunner - Grin Products - Product Info
Frankenrunner - Grin Products - Product Info
Motor - Grin RH212 - 20" Rim Wheel - Fast Wind
FH212-RH212 - Grin Kits - Product Info
(I think this motor should be capable of outputting 1500~ watts at peak power, correct me if I'm wrong)
Display - Grin Cav3
Cycle Analyst V3 - Grin Products - Product Info
Battery - 52V 24.8ah EM3EV / Caprouge 52V 20ah
52V 20Ah / 1040Wh Downtube Samsung eBike Battery CPPOLF52-20
Initially I'm looking to begin with a single 52 volt, 20ah samsung cell downtube battery.
Is there any reason I should consider a 48 volt battery over a 52 volt battery assuming the ah is the same?
If I end up needing more battery I was looking at potentially mounting this EM3EV battery on the rear rack / concealed in a basket.
EM3ev 52V (14S7P) Hard Case Ebike Battery Pack | EM3ev