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 Post subject: 98 Kona Cinder Cone
PostPosted: Sat Jan 21, 2012 2:49 pm 
Dirt Disciple

Joined: Tue Mar 30, 2010 12:52 pm
Posts: 44
I'm planning on making my own frame based around Kona geometry, the size 20 Explosif I have is a little large, so I thought I'd try something smaller - a 98 Cindercone to see if the size / geomtery works for me.

Ebay turned up an 18" Eggpant Surpirse 98 Cinder Cone, complete with stuck steat tube. 10mins with the seat tube in the vice and turning the frame and it was out.


Attachments:
Base frame.jpg
Base frame.jpg [ 76.95 KiB | Viewed 1585 times ]


Last edited by Cinders on Sat Jan 21, 2012 3:17 pm, edited 1 time in total.
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 Post subject:
PostPosted: Sat Jan 21, 2012 2:56 pm 
Dirt Disciple

Joined: Tue Mar 30, 2010 12:52 pm
Posts: 44
I wanted to add a disc mount, change the routing of the cables / hoses and remove the canti bosses. To change the top tube cables routing the cable stops came off and I re-drilled the underside of the top tube to take 3 bottle cage bosses. Then mocked-up a disc tab and got some 14mm stay tube from Ceeway to make up a brace. The balsa template was to get a rough shape for the tab. (very rough shape!)


Attachments:
Tab mock up.JPG
Tab mock up.JPG [ 149.03 KiB | Viewed 1581 times ]


Last edited by Cinders on Sat Jan 21, 2012 3:48 pm, edited 2 times in total.
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 Post subject:
PostPosted: Sat Jan 21, 2012 2:59 pm 
Dirt Disciple

Joined: Tue Mar 30, 2010 12:52 pm
Posts: 44
When looking for suitable disc tabs I found that 'B3' on here had laser cut some for his son's bike, so I drew up the tab and a jig in CAD and sent him the files, then got these back;


Attachments:
Tab and jig.jpg
Tab and jig.jpg [ 67.35 KiB | Viewed 1580 times ]
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 Post subject:
PostPosted: Sat Jan 21, 2012 3:03 pm 
Dirt Disciple

Joined: Tue Mar 30, 2010 12:52 pm
Posts: 44
Because the seatstays run at an angle down to a small drop out, the tab needed some tweaking to get the top part to sit on the seatstay, it was then bolted up ready for tacking with the jig fitted around the rear hub.


Attachments:
Tab and jig assy.jpg
Tab and jig assy.jpg [ 54.72 KiB | Viewed 1579 times ]


Last edited by Cinders on Sat Jan 21, 2012 3:47 pm, edited 1 time in total.
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 Post subject:
PostPosted: Sat Jan 21, 2012 3:09 pm 
Dirt Disciple

Joined: Tue Mar 30, 2010 12:52 pm
Posts: 44
Then brazed and cleaned up...


Attachments:
Cleaned up.jpg
Cleaned up.jpg [ 49.01 KiB | Viewed 1577 times ]
Post brazing.jpg
Post brazing.jpg [ 71.29 KiB | Viewed 1577 times ]
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 Post subject:
PostPosted: Sat Jan 21, 2012 3:15 pm 
Dirt Disciple

Joined: Tue Mar 30, 2010 12:52 pm
Posts: 44
With the 3 extra top tube bottle bosses on, 2 hose guides on each seatstay, the disc tab and brace on and the canti bosses removed, it was then read for blasting and powdercoating...


Attachments:
Powder.jpg
Powder.jpg [ 74.85 KiB | Viewed 1576 times ]


Last edited by Cinders on Sat Jan 21, 2012 3:26 pm, edited 1 time in total.
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 Post subject:
PostPosted: Sat Jan 21, 2012 3:25 pm 
Dirt Disciple

Joined: Tue Mar 30, 2010 12:52 pm
Posts: 44
Gil_M did some amazing custom decals, I wanted orange and grey, with a mix of '97 and '96 logo types (spiral head tube badge) a long with some other custom touches. I was really please with the results! As ever awesome work by Gil_M


Attachments:
Hot rod thumb up.jpg
Hot rod thumb up.jpg [ 90.31 KiB | Viewed 1569 times ]
Head tube.jpg
Head tube.jpg [ 94.85 KiB | Viewed 1571 times ]
custom Cinder Cone logo.jpg
custom Cinder Cone logo.jpg [ 84.14 KiB | Viewed 1571 times ]
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 Post subject:
PostPosted: Sat Jan 21, 2012 3:40 pm 
Old School Grand Master

Joined: Sun Jun 27, 2010 9:37 am
Posts: 3976
nice work! i have an interesting kona frame waiting on some similar custom work languishing in the work shop...this may have just inspired me to get it done.


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 Post subject:
PostPosted: Sat Jan 21, 2012 3:42 pm 
Dirt Disciple

Joined: Tue Mar 30, 2010 12:52 pm
Posts: 44
Then I built the whole thing up with bits I've been collecting over the past 6 or so months, and with an orange anodised theme (I've tried to keep it to a minimum!)

The top tube routing uses Ragley bolt on cable guides, which are fairly veratile and allow a complete outer casing routing for the gear cables with the hose guides on the drive side seatstay.


Attachments:
Cable routing.jpg
Cable routing.jpg [ 99.09 KiB | Viewed 1566 times ]
Front DS.jpg
Front DS.jpg [ 126.41 KiB | Viewed 1566 times ]
Tab joggle.jpg
Tab joggle.jpg [ 142.34 KiB | Viewed 1566 times ]
disc complete.jpg
disc complete.jpg [ 117.07 KiB | Viewed 1566 times ]
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 Post subject:
PostPosted: Sat Jan 21, 2012 4:00 pm 
Dirt Disciple

Joined: Tue Mar 30, 2010 12:52 pm
Posts: 44
Thanks Jamabikes, it would be nice to think it's inspired someone too.

Really enjoyed doing the little modifications, need to crack-on with making a frame of my own up. Thanks to the Retrobike community for the help with bits (rear rim, forks, brakes, rear hub, shifters, seat post clamp were all sourced off here) and thanks to Gil_m for the decals and B3 for the disc tab.

It's still not quite finished, I'd like to fit a slightly longer front brake hose (if anyone has a 5mm hope hose - or just the 5mm fittings drop me a line) and I'm trying to decide if a 185mm wavy rotor would be a good idea or not (I think RC31's are 165mm max disc size?). Also, does anyone have a source for the later RC31 decals? I guess Gil_m should be the first person to ask?

Thanks for looking

Andy


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