crf450r 45kw race bike build

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speedy1984   100 W

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Re: crf450r 45kw race bike build

Post by speedy1984 » Jan 08 2023 8:22am

Looking good :thumb: Am i seeing things or have you chopped the centre section of the frame out?

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ZeroEm   100 MW

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Re: crf450r 45kw race bike build

Post by ZeroEm » Jan 08 2023 9:13am

by speedy1984 » Jan 08 2023 8:22am

Looking good :thumb: Am i seeing things or have you chopped the centre section of the frame out?
You will need to read back in the thread, he extended it.
2019 Performer E-Trike
2013 Nissan Leaf S 7 bars 331.5w/KM

rivvs   10 W

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Re: crf450r 45kw race bike build

Post by rivvs » Jan 08 2023 9:51am

speedy1984 wrote:
Jan 08 2023 8:22am
Looking good :thumb: Am i seeing things or have you chopped the centre section of the frame out?
no on the shock mount on the 2017 and up honda is a lot lower than the previous generation. So there is way more space over the shock.

rivvs   10 W

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Re: crf450r 45kw race bike build

Post by rivvs » Jan 08 2023 9:54am

Also stated working on the gear reduction. I welded the bearing support into the chaincase and started making the brakets that go between the swingarm.
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j bjork   1 MW

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Re: crf450r 45kw race bike build

Post by j bjork » Jan 08 2023 1:14pm

Looks good :thumb:
Do you plan to put steel spacers between the bracket and swingarm? (I see that you left some space there)
I think that can be a good idea, the alu gets a bit soft.

Is it the autput shaft from the bike you use and mount the sprocket on?
Will you be able to use it, or is it just a mockup ?

speedy1984   100 W

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Re: crf450r 45kw race bike build

Post by speedy1984 » Jan 08 2023 3:36pm

rivvs wrote:
Jan 08 2023 9:51am
speedy1984 wrote:
Jan 08 2023 8:22am
Looking good :thumb: Am i seeing things or have you chopped the centre section of the frame out?
no on the shock mount on the 2017 and up honda is a lot lower than the previous generation. So there is way more space over the shock.
Oh ok i see :thumb:

rivvs   10 W

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Joined: Nov 17 2019 7:37pm

Re: crf450r 45kw race bike build

Post by rivvs » Jan 08 2023 4:52pm

j bjork wrote:
Jan 08 2023 1:14pm
Looks good :thumb:
Do you plan to put steel spacers between the bracket and swingarm? (I see that you left some space there)
I think that can be a good idea, the alu gets a bit soft.

Is it the autput shaft from the bike you use and mount the sprocket on?
Will you be able to use it, or is it just a mockup ?
Yes there will be another gusset between the two to make it stronger. The shaft is th one from my previous build. It is made from a snowmobile shaft that happen to be the same spline as a ktm sprocket. I will bu using the same part but it will be a new one because it needs to be longer.

rivvs   10 W

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Re: crf450r 45kw race bike build

Post by rivvs » Jan 17 2023 3:47pm

finished welding the supports for the bearings and started working on the chain tensioner.
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SlowCo   10 MW

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Re: crf450r 45kw race bike build

Post by SlowCo » Jan 17 2023 6:26pm

Delicious welding, I'm jealous :mrgreen:

rivvs   10 W

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Re: crf450r 45kw race bike build

Post by rivvs » Jan 23 2023 6:56pm

Finished the chain tensioner and started working on the battery. Trying to find the best shape for the series and parralel connection.
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speedy1984   100 W

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Re: crf450r 45kw race bike build

Post by speedy1984 » Jan 25 2023 9:09am

Im defo using pouch cells on my next build,there has to be a better way.Starting to look like a bike now :thumb:

rivvs   10 W

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Re: crf450r 45kw race bike build

Post by rivvs » Jan 25 2023 10:36am

speedy1984 wrote:
Jan 25 2023 9:09am
Im defo using pouch cells on my next build,there has to be a better way.Starting to look like a bike now :thumb:
At first I wanted to use pouch cell but I could not find a good source for them.

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