swapping forks

[bbanna]

I am curious about another parts swap. I know that the CBR929RR forks and triple tree are a direct swap with the CB-1 (you have to put your clipon below the top triple). The bearings are the same. I am wondering though if this is true with the current Honda forks on the CBR600RR or CBR1000R.

I am thinking this because it would be nice to put a set of Ohlins forks on a possible future CB-1 project bike. Just another something to investigate.

Brian

[ptlcb1]

If my memory serves me correctly, I think someone on here has a CBR600 front end on their 1.  That surprised me and I think that would be a great addition for a 1 that frequently visits a race track.    But then I started thinking, would the extra weight of a dual disk set up, make a big difference on the track, with the same power...

The stock single disk is plenty powerful!  It has never let me down.  Right now, without any plans on increasing the power of my 1, I dont see adding the weight of a dual set-up.  The lighter I can keep the bike, the better the power to weight ratio will be, since I have no current plans to increase the power.  Now if I can just lose 20 lbs before next season starts 

[bbanna]

You can put a CBR600F2/F3 front end on by just slipping the forks into the CB-1 yokes. They are a direct fit up and you can use the CB-1 clip-ons.  What I want to know is about the new CBR600RR or CBR1000R. I like the upside down forks. My current CB-1 project using the CBR929RR forks will be running just one disk on the right side. I agree that two is way over kill.

Brian

[ptlcb1]

Kai Ju is the one with the CBR600RR front end on his CB-1.5.  That thread is in the "Photo Gallery", titled, "What I did on Christmas Vacation".  I asked him about it in that thread, about half way down the first page.  It looks good!  Im sure if a 2007 CBR600RR front end fits, then so will an Ohlins package!   

[bbanna]

That is what I was hoping for. Must mean the same bearings are used in the 600RR as the CB-1. Just like the 929RR front end does.

Now going just a little to far here  . Another thing I was pondering is having the frame duplicated in titanium  . Just the frame and then build a new racing sub frame.

Cool

Brian

[ptlcb1]

  Since you went there, LOL  MY Ultimate Project CB-1, when money isnt an issue for me anymore, will have a carbon fiber frame    It will also have those sweet BST Carbon Fiber rims!  I love the look of those on the tyga website!  That CBR400RR on there is very nice!  It even has carbon fiber body work!  VERY TASTY!!

[bbanna]

Oh yeah, I forgot about that Tyga web site. There are some nice items on that site.

I have often though of building a 400RR race bike. I could piece meal it over from Japan a little at a time and build it from the ground up. I know if I can land a full time job, my wife would be OK with that.

Brian

[ptlcb1]

Happy wife, happy life    Slowly my 1 will become my vision of an RR.  My goal is still to place on the podium at the WERA Grand National Finals on the CB-1!   

[Kai Ju]

The F3, CBR600RR and CB-1 all use the same steering head bearing part numbers.
As you already know, I used the '07 CBR600RR forks. I had to modify the steering stop but that was it.

Again, any questions, let me know.

Kai Ju

[astrodraco]

I wanted to bring this thread back up to the top again because I'm looking at replacing my stock front end with a complete 07 CBR 1000RR set up I found at a relatively cheap price. If I understand the comments above correctly, it should be a straight forward swap with only a mod to the steering stop (from Kai Ju's comment), but I'm unclear as to what the specifics of the mod are that's needed. I just got inspired to try this swap after taking a trip to a local salvage yard and seeing a bunch of perfectly good and cheap complete 1000RR front ends, and thinking someone on this site had to have looked into doing this. Obviously, I'm buzzing a little bit because of the low price so if someone needs to bring me back to reality, by all means, do it. Actually, any advice or even a suggestion for another front end is welcome since the salvage yard was flush with a bunch of inverted fork style front ends at really good prices.

[Kai Ju]

I'd stick with the 600 fork if you can find one since the weights of the two bikes are so similar and you won't have to change springs.
I'm really happy with mine and i weigh 220 ready to ride.

[91cb-1]

(you have to put your clipon below the top triple)

I'm guessing you have to do this because the stanchions are shorter on the 900, could you not in that case use the cb-1 stanchions with the 900 fork legs and internals? this way you wouldn't run the risk of smashing up your tank in the case of a tank slapper.

I had to modify the steering stop but that was it.

what was it you had to do to the steering stop? did you have to weld an extra bit on each side or take some off and on both accounts why?

[Kai Ju]

I had to take some off the steering stops to get more lock to lock to clear the 599 (600 Hornet) radiator.
For the steering lock I used the stock ignition lock in the CBR upper triple but had to narrow the stop on the frame quite a bit to get the steering lock pin to clear.
Steering bearing and stem wise it was a bolt on though.

[Tweed]

I have to totally disagree with the member that said dual discs on this bike is totally overkill, IMHO I realize I'm a total noob, but have now racked up about 1200km on my -1 in the last 2 months, love everything about it, took a buddy's ol 86? v45 with twin disc setup and was blown away!, this bike must easily weigh 200 lbs more than mine but stopped with  a controllable skid with less than 3/4 inch travel  using 2 fingers, just felt much more powerful. Don't get me wrong I can stop on a dime with my bike but if a dual disc setup can stop you 5 feet shorter in a controlled fashion why wouldn't you? (not even beginning to mention the advantages of a modern inverted fork setup would bring)
Dan

[91cb-1]

I have to totally disagree with the member that said dual discs on this bike is totally overkill, IMHO I realize I'm a total noob, but have now racked up about 1200km on my -1 in the last 2 months, love everything about it, took a buddy's ol 86? v45 with twin disc setup and was blown away!, this bike must easily weigh 200 lbs more than mine but stopped with  a controllable skid with less than 3/4 inch travel  using 2 fingers, just felt much more powerful. Don't get me wrong I can stop on a dime with my bike but if a dual disc setup can stop you 5 feet shorter in a controlled fashion why wouldn't you? (not even beginning to mention the advantages of a modern inverted fork setup would bring)
Dan

It is because his bike weights 200 bs more than yours that it needs the dual disks. the Honda 400 SF has dual disks on it, it uses the same engine and if anything puts out less power than the cb-1 but because the cb-1 is lighter and better built a dual disk set up is not needed, you said it yourself, you can already stop on a dime with the standard front brakes, if you feel you need an extra bit of bite upgrade your hoses to stainless steel (ads no weight and the difference is amazinbg) and upgraade your pads to hh pads, in fact you'll find that through giving your caliper a good clean and service you'll improve her to no end. i've been running HEL braided hoses front and rear and HH pads up front (no need for them on the rear) for the last 10,000 km and the extra power i have going through town simply because i know that i can stop and have ultimate controle over my bike when ever i want it. in fact my front brakes are so good i dislocated my left shoulder emergency braking on a motorway because of them, no damege to the bike though!