NSR FXR, the new No45

**richban** · 14th July 2012, 10:48

Originally Posted by gav

So .... where do you find these emulator thingys then? (apart from in other people forks ... ) Are they straight forward enough to install?

Race tech are what I am running through Crown Kiwi. Mr ohlins. YSS also do them. I went with Crown Kiwi, KSS, Robert Taylor because of the great advice and service. They did a little custom job on them and set them up in a happy place for me. I just had to put it all back together. Also gave advice on the install as the instructions are a little basic. He just said when you go to install them call me, here is my after hours number. We went over what was there and a few measurements, As and turns out I didn't need to make big holes in the damper rods like the install instructions suggested. Get some they rule. Also helps when you have the correct spring rate.

**Drew** · 14th July 2012, 10:48

Originally Posted by hmurphy

Could be a cool avenue to go down for racing, but might be a disaster in many ways. Would be cool if Glen can be bothered testing with one.

Shit yeah. The up and down sides to the MX motor are one and the same...The gearbox. The motor is no faster than heaps of others, but the six cog close ratio will mean the bike can exit a corner like a fuckin shot. It's still gonna run out of puff though, you just can't gear it high enough and still expect to get it moving.

Hey Rich, chuck one in the FXR frame once the new bikes done. Do a comparison between what the bike was, and what it becomes.

**Drew** · 14th July 2012, 10:51

Originally Posted by richban

Race tech are what I am running through Crown Kiwi. Mr ohlins. YSS also do them. I went with Crown Kiwi, KSS, Robert Taylor because of the great advice and service. They did a little custom job on them and set them up in a happy place for me. I just had to put it all back together. Also gave advice on the install as the instructions are a little basic. He just said when you go to install them call me, here is my after hours number. We went over what was there and a few measurements, As and turns out I didn't need to make big holes in the damper rods like the install instructions suggested. Get some they rule. Also helps when you have the correct spring rate.

The stiffer popit springs and smaller bleed holes are almost manditory, but it's easy to do if anyone is contemplating getting some straight from the box.

**richban** · 14th July 2012, 10:52

Originally Posted by Drew

Hey Rich, chuck one in the FXR frame once the new bikes done. Do a comparison between what the bike was, and what it becomes.

No thanks. If I can high side my FXR now I hate to think how much air that little creation would give me. Anyway to the shed with you.

**Bert** · 14th July 2012, 10:57

Originally Posted by Drew

Shit yeah. The up and down sides to the MX motor are one and the same...The gearbox. The motor is no faster than heaps of others, but the six cog close ratio will mean the bike can exit a corner like a fuckin shot. It's still gonna run out of puff though, you just can't gear it high enough and still expect to get it moving.

Hey Rich, chuck one in the FXR frame once the new bikes done. Do a comparison between what the bike was, and what it becomes.

they were a common class in Europe as well.

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(forgot the photo tag its a 80cc)
just change the primary ratio; it will suck off the line but be great once up there...

Maybe we should just build one....

**Drew** · 14th July 2012, 10:57

Originally Posted by richban

No thanks. If I can high side my FXR now I hate to think how much air that little creation would give me. Anyway to the shed with you.

The shed I use is some distance away from where I live. Will be there later, but I have found I wont be riding tomorrow. The whole, I have no rear brake caliper thing being quite the limiting factor.

**Drew** · 14th July 2012, 11:00

Originally Posted by Bert

they were a common class in Europe as well.

(forgot the photo tag its a 80cc)
just change the primary ratio; it will suck off the line but be great once up there...

By god that thing is fuggin cool.

So you're admitting, that to make something powered with one of these, would still require some time and money to be a front runner on a long track?

**Bert** · 14th July 2012, 11:10

Originally Posted by Drew

By god that thing is fuggin cool.

So you're admitting, that to make something powered with one of these, would still require some time and money to be a front runner on a long track?

I didn't disagree with the discussion: linky back to last comment

but to answer your question: Yes.... especially a 80s not the new generation 85s...
I don't have an issue with the concept Drew. I've been bagged for years suggesting it (which I have done repeatedly; usually once a year around the times my motors blow up...).
I think its a match made in heaven 150cc fours and 80cc twos; max 5% over size. no restrictions. even in with Streetstocks on big tracks...

Originally Posted by richban

Race tech are what I am running through Crown Kiwi. Mr ohlins. YSS also do them. I went with Crown Kiwi, KSS, Robert Taylor because of the great advice and service. They did a little custom job on them and set them up in a happy place for me. I just had to put it all back together. Also gave advice on the install as the instructions are a little basic. He just said when you go to install them call me, here is my after hours number. We went over what was there and a few measurements, As and turns out I didn't need to make big holes in the damper rods like the install instructions suggested. Get some they rule. Also helps when you have the correct spring rate.

Anyway back to the real thread; Rich that all sounds like a simple process; what weight oil did you use?

**richban** · 14th July 2012, 11:51

Originally Posted by Bert

I didn't disagree with the discussion: linky back to last comment

but to answer your question: Yes.... especially a 80s not the new generation 85s...
I don't have an issue with the concept Drew. I've been bagged for years suggesting it (which I have done repeatedly; usually once a year around the times my motors blow up...).
I think its a match made in heaven 150cc fours and 80cc twos; max 5% over size. no restrictions. even in with Streetstocks on big tracks...

Anyway back to the real thread; Rich that all sounds like a simple process; what weight oil did you use?

Yeah this is a 4 stroke build get out you smokers. 15w feels just right.

**richban** · 14th July 2012, 15:11

Little bit more progress.

Chopped the old front engine stays. The small bit that I left will be where the big crash protection will be bolted on. Also the copped bits will be may be recycled and for the top engine mount.

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Also started to mock up the rear wheel. For a minute there I thought it was going to be perfect on the drive side but looks off a little. Still it will be quite easy as I just need to machine the sprocket carrier spacer and add one to the break side. Should be rolling soon.

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**F5 Dave** · 15th July 2012, 21:06

We've been down the mx80 argument many times. Blows a hole down the side of the non competition rule. But the other main drama is that MX80s don't get broken up, they get ridden till they shrapnel themselves. You'd have to buy a going bike & the argument then goes Johnnys Dad buys a newer one. The 85 change over is a point, but who could tell a 80 from a 85?

Nah, the formula has been the same & with minor tweaks has stood the test of time.

ahh hold on I've seen the other thread, Blaaah.

**richban** · 16th July 2012, 14:15

Quick mockup. First real idea of how it might look. Heaps to do still. Will work from the front back. Subframe is no good to me really so will have to make a new one. It will have quite a hi seat Not as jacked as it looks but not 2 far off. Need to track down the front guard I got on trademe a long time ago that the guys has never bothered to send me.