Shiny's 1980 CB750 F...happy with pods.

[CB70]

Nice ride!

[motogrady]

Ya, the black front fender really pulls it together.

[shinyribs]

Thanks!

Truck gets the credit for the black fender. Wasn't sure I was gonna like,but I love it now.

[shinyribs]

I can't leave well enough alone. I just scored some new parts for this bike. A  front end off a CBR 600 F3 with the 6 spoke wheels. I love those 6 spokes. Complete with rotors,calipers,Russell braided lines and a brand new 120 tire on there. I also picked up the matching rear rim that has a nice 170 tire on there.

I did some playing around and the front end is already on the bike, The brakes just need bled.  It was super easy since it fit in my preexisting trees, but now I have 300mm rotors vs the 280's that were there. And the new calipers are quite a bit beefier. More brakes,more rubber: I'm happy.

I did some mocking up on getting the rear on there and it seems doable. The rotor is the same diameter so that part's a snap. Just needs the proper spacing sorted out. This rim is 5.5'' wide so getting it centered and retaining proper chain run will be a bit of a job. I don't have any hard numbers yet,but I'm 95% positive I can run this set up with out modifying the stock swingarm. If it turns out it;s too narrow to fit in there,that's ok! I picked up the swinger off that F3,too.  I may have to drop down to a 160 to get it all to fit,but this 170 looks a lil too bog to me anyway. Looks like very little machine work to get this sorted out. I'm super excited about it. I oughta gain a good bit of ground clearance out of this deal as well. Christmas came early for me!

Google image of an F3. Six spokes and gold snowflake rotors. Oughta be a nice touch for an older bike.

[Hoko]

What year is that bike Shiny?  That's a sweet looking bike.  I'm not usually a fan of the newer style bikes but that one looks good.

[shinyribs]

That bike in that picture is a 1995 CBR600 F3. Stock Google image of course,not my bike. And I agree,for a faired bike it looks pretty nice.


I had a good bit of success on this swap today.

All that glitters is not gold,though. This front wheel has no way to work in a speedo drive,so as of right now I dont have a speedo. But I do have a plan. More on that later.

Front end comparisons:

Much more modern look than before.

Beef. It's what's for dinner


So first off this rear uses the same size axle so that was easy. I put it on the bike using the preexisting chain side spacer to see where my alignment was. 6mm off-center. Not too bad!


So I made a new chain side axle spacer and centered that up. Easy-peasy,on the money.


Then I checked the chain run and it was off by 3mm. My original plan was to shave 3mm off the sprocket mounting surface of the cush drive,but there was not enough tire-chain clearance for that.


I don't have a pic of this yet,but I can step the primary sprocket out the 3mm i need to align the chain. The splined portion of the sprocket is 14mm wide and it has a taper on those splines. There is ~2.5mm of unused spline on the outer edge due to the shape of the taper, so when I step the sprocket out I'll only be losing roughly 0.5mm of engaged spline. I'm comfortable with that.

New chain run mocked up with 3mm sprocket spacer.


Using the stock spacer between the brake side of the rim and the caliper mount was on the money, so I just reused that. Had to turn up a thinner spacer to finish up axle spacing and the rear rim was on!


There's about 5mm of clearance between the tire and the swingarm. We'll see if it rubs somehow,but it should be fine.


I still need to make the primary sprocket spacer and I'll need a new sprocket for this cush drive with the correct tooth count. I checked before I bought these parts and the sprockets available range from 32-74 teeth in 1 tooth increments.  Crazy.

This has raised the bike 1/2-3/4'',which I really needed. And I think it really helps the overly large rear fender look more in proportion. Super stoked about this set up now.

It's almost wider than the stock mud guard.



And compared to the already-wider-than-stock 140 that was on there. More beef!


And now for the next part of the ''all that glitters'' portion of this swap. I got these parts cheap off a wrecked bike that was being parted out. $200 for all of it. But check out this ever so small ding on the rear rim...


That'll buff out,right?? I don't know if that's fixable or if I'll need a another rim, regardless, I couldn'tve bought these tires for $200,let alone all the other goodies that came along with this haul of goodies. So I'm pretty happy.  Have a good weekend folks. Ride safe!

 

[TOOLS1]

I just wonder, when are you going to get a bike lift?
TOOLS

[shinyribs]

Maybe my Secret Santa will hook me up!!  I'd really love to have a lift.

Don't know why the bent rim pic didn't show up in the other post. I'll try again.

[TOOLS1]

There is a place here in KC that can repair that rim.
TOOLS

[shinyribs]

I was thinking about a block of wood, a hammer and a lil heat. You know I'm cheap like that!

[TOOLS1]

Its your butt sitting on it.
TOOLS

[shinyribs]

If they can do it why can't I? :(

Do you have any clue what they might charge? I don't have a clue where I could find a service like that around here. One buddy.from California said he had a pretty similarly bent rim done for $75. I'm pretty sure I could just replace it.for that price.

[TOOLS1]

I can try the get their number for you this week. Hove you googled "rim repair" in your area?
Tools

[TOOLS1]

http://awrsmidwest.com/
Here is a link to their web site. They also have a brick, and mortar location.
TOOLS

[shinyribs]

Speciality services like that are a joke in my area. Seriously, we don't even have a machine shop around here that will touch a bike engine.

I gave the rim a few whack-o's with a dead blow and it moved quite easily. I might just give this a go....still undecided at the moment,though.


I made up the spacer for the sprocket. I had to make a new ''washer'' to hold the sprocket on,too. It needed to be stepped to compensate for the stepped-out sprocket and still tighten up against the output shaft so the sprocket could free-float like stock. All stainless ,of course.



Here's the sprocket with the spacer behind it. You can see the unused splines and the taper I mentioned before. It measured right at 0.6 mm of unused spline.


I wasn't really happy with the silver legs on the forks, and they were pretty scratched up, so they got a nice coat of semi-gloss black. Rims got the centers repainted, the outer lips got polished (slightly) and the calipers were stripped,cleaned and all put back together. Just gotta service the forks and bleed the breaks.


I noticed this sticker on the legs when I was sanding them and google'd it. Apparently these forks have had work done on them. Cool! I wonder what was done? I'm not really doubting that they actually have had work done to them since every bit of the bike was safety wired when we stripped it. And it had a really nice Penske shock on the back which when we looked it up retails for ~ $700.


Getting closer...

[Hoko]

Looks like that lathe was a good investment.   You're putting it to good use.  After I get my shop finished, I'm going to look around for one.

[shinyribs]

Dude,I can't believe I waited so long to get one. I'm itching for a mill now . :)

[Truck]

This is the drawback to having a shaft drive. I'd love to be able to add a fat tire to my 900, but it's shuch a pain!

[shinyribs]

Hmm...a fat tire for w shaftie...sounds like a fun challenge!



I discovered there's one of those AWR franchises here in town. And its only a couple blocks form Eric's shop. I just left there and they wanted $75 to fix it. I told him the rim was only worth $80 and told him I'd go $30. He asked me if I was serious. LOL.  Hey, make $30 or make $0. Id take the $30.  Oh well, looks like its hammer time!

[Truck]

I have seen custom rears for 750's, and have been told the company can mod for a 900, but they are waaay more money than I'd want to pay and most of them are for 300+ tire sizes. I'll be satisfied with finding some spoked Goldwing wheels and just cram on the fattest  tires I can!