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Author Topic: CB250 RS - Project "Phoenix"  (Read 9206 times)

Offline teazer

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Re: CB250 RS - Project "Phoenix"
« Reply #90 on: Nov 08, 2018, 17:05:24 »
That is starting to look wicked.  I like the tank, but now I see those wheels, I am tempted to thick supermoto with high bars which of course don't work with that sexy top triple clamp....... That's the problem with projects, as they start to come together, you start to see other possible outcomes.

Pegs look a bit to far back to be able to take your weight.  Think of a horse race jockey with legs underneath him so he can use his legs as suspension.  That's more or less what you should be aiming for but less extreme of course.

Offline paddyshepherd

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Re: CB250 RS - Project "Phoenix"
« Reply #91 on: Nov 08, 2018, 17:23:32 »
That thing's going to be a ton of fun to ride. I think the tank would look a lot better with an inch or two added to the swinging arm.

I don't suppose your machinist need a new friend does he?

I hope so mate. I tend to agree there as well - I did look to try and find an alloy swingarm I could use, but the frame is that narrow that it's proving nigh on impossible! I may keep an eye out for a different tank still. It's difficult to tell as I think the fact it's just one slab of solid black paint. But at the same time I don't want to paint it only to find I still don't like it! I quite like the CB360 tanks, so I may consider one of those, but I imagine difficult to find.

Unfortunately my machinist has currently had to stop taking on work. He does them as cash in hand type jobs on his lunch breaks at work, but they've done a rotation and he's no longer on the mill for a while now!

Offline paddyshepherd

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Re: CB250 RS - Project "Phoenix"
« Reply #92 on: Nov 08, 2018, 17:26:17 »
That is starting to look wicked.  I like the tank, but now I see those wheels, I am tempted to thick supermoto with high bars which of course don't work with that sexy top triple clamp....... That's the problem with projects, as they start to come together, you start to see other possible outcomes.

Pegs look a bit to far back to be able to take your weight.  Think of a horse race jockey with legs underneath him so he can use his legs as suspension.  That's more or less what you should be aiming for but less extreme of course.

Thanks Teazer. Yeah, I can totally see your logic as it did cross my mind too!
Yeah, the pegs are going to be moved forward an inch or two, I just haven't got round to it.

I sat on a triton at a local show and noted how comfy the position was. The bloke said to me "as a rule of thumb, sit your arse over your shock mounts and have your heels in line below". At present, it's probably like, my ankle bone below, so they do need to shift a bit.

Offline LMCol

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Re: CB250 RS - Project "Phoenix"
« Reply #93 on: Nov 08, 2018, 17:52:24 »
I did look to try and find an alloy swingarm I could use, but the frame is that narrow that it's proving nigh on impossible!

Get 'er welded!

Offline teazer

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Re: CB250 RS - Project "Phoenix"
« Reply #94 on: Nov 08, 2018, 20:04:43 »
Your Triton friend is almost right.  On a Manx, the back of your posterior is just in front of the shock mount, but the pegs are under the front edge of the seat. 





Here's a Dave Camier (DCM) SR500 race bike for inspiration.

Offline paddyshepherd

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Re: CB250 RS - Project "Phoenix"
« Reply #95 on: Mar 31, 2019, 18:24:14 »
So this project had been put on hold for quite a while due to uni work and building my campervan.
However this weekend I got a spare couple of hours and didn't have anything to do on the van, so I dug the bike out and did a few odd jobs.

I installed my new Gilles GP Light 2 clip-ons, which I bought to replace the previously purchased ones, which I decided were too bulky looking. I then fitted my custom ordered Hagon shocks which arrived a while ago. They look bang on.

Then I finally looked at the foot peg mountings, I decided that since I had a spare set I would butcher these ones and see if I can improve the location of the footpegs. I took them off and flipped them over. Handily, there was a pressing in the casting which looks like it was originally designed to have a captive nut in it, approx 60mm forward of where they were currently sat. I decided I would use that as a first try, since I could drill as many holes as I wanted in these ones then make it right for the good set. However, no need, because first try seems perfect up to now. I drilled the holes, tested, and then lopped the excess metal off. They still require some tidying up and smoothing, but that will come when I have more time. I intended rounding them completely as you will see by the marker pen on the modified one, but I've taken it in line with one of the stiffening ribs from the casting, whether it'll stay that way long term or not I don't know.

Modifications to the said mounts:




and the pegs back on the bike, along with the new clip ons and the hagons. I still think the forks need to be another colour, either back to silver or possibly a copper colour, depending if I stick with my colour scheme plan.




I don't know if it's the shorter footrest mounts, the slimmer shocks, the fact I've moved the wheel backwards in the adjuster or a combination of all 3, but I think the proportions of the bike look much better now. I hope you lot agree but let me know!
« Last Edit: Mar 31, 2019, 18:35:31 by paddyshepherd »