Giant Revive conversions

I would suggest also investigating options from Grin. Personally I like a combo of RH212 + Phaserunner/Frankenrunner + CAv3. I also put a long string of 2170 cells inside the down tube for 10S4P for a nice compact battery setup.
That being said, either of those leafbike motor options would be good. I ran one of those motors at over 8KW on my Stealth Fighter years ago with active cooling. Was a beast!!! so one of those in a Giant Revive will definitely be fine.

Cheers
 
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
 
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I would suggest also investigating options from Grin. Personally I like a combo of RH212 + Phaserunner/Frankenrunner + CAv3. I also put a long string of 2170 cells inside the down tube for 10S4P for a nice compact battery setup.
That being said, either of those leafbike motor options would be good. I ran one of those motors at over 8KW on my Stealth Fighter years ago with active cooling. Was a beast!!! so one of those in a Giant Revive will definitely be fine.

Gosh, nearly any thing would work in a 20" wheel. Takes a lot of power to saturate a 27mm stator even. The really high RPM is such an advantage.

1724020836511.png
 
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Also I was wondering if anybody could confirm the rear axle thread size and shaft size of the Giant Revive?
Originally the Giant Revive came with "skewer" axles. According to my old measurements, you should have no problem with 10 mm axles in the rear.
 

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