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 Post subject: Re: my project Dynatech
PostPosted: Wed Aug 21, 2019 10:56 pm 
Newbie

Joined: Thu Aug 09, 2018 2:52 pm
Posts: 4
Hi all,
I have dug out my project dynatech with the intention of trying to make it into a "gravel bike" or a drop bar XC bike if you prefer.
It has been sprayed by a previous owner. It looks like it was straight over the original finish and I am in a quandary whether to try and remove the paint and refinish the frame or leave it as a Rat bike dynatech??
Anyhow does anyone have any experience of stripping the paint off of on one of these frames? Heat and chemicals are out so I am considering a laborious rub down with abrasive papers. Can you suggest any cheap, less labourious methods??
Cheers Rich
PS I will try to post a pic of what I bought when I can create an image of the correct file size.


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PostPosted: Thu Aug 22, 2019 9:48 am 
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Joined: Wed Apr 13, 2011 11:11 pm
Posts: 734
Location: Nottinghamshire
could you get it blasted? Deffo stay away from chemicals due to the bonding but I was told by a Raleigh guy that when they were painted they then went into an oven, so I've often wondered if heat could be used to remove the paint? Get some pics up to see what the finish is like at present...


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 Post subject: Re:
PostPosted: Thu Aug 22, 2019 10:14 pm 
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Joined: Thu Aug 09, 2018 2:52 pm
Posts: 4
Ok, here is it as purchased. I am currently in the process of stripping it down.
She's a beaut isn't she.


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IMG_20190819_190058832_resize_4.jpg
IMG_20190819_190058832_resize_4.jpg [ 474.52 KiB | Viewed 875 times ]
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 Post subject: Re:
PostPosted: Wed Sep 18, 2019 10:25 am 
Retro Guru
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Joined: Fri Jan 28, 2011 12:09 pm
Posts: 808
Location: suffolk
This might be an nice purchase for a Dyna-Tech fan?, it'd be interesting to know which titanium tubed frame was beneath the paint.

https://www.ebay.co.uk/itm/Retro-1988-M ... SwD5JdgQtd


matt


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PostPosted: Wed Sep 18, 2019 6:33 pm 
Retro Guru

Joined: Sun Jun 16, 2013 2:57 pm
Posts: 1788
Location: Porto / Plymouth
One of a kind, I like how they recreated the original paint job but left some of the Ti showing. A bit overpriced though.

It doesn't have Ti chain stays, so it's not an Ogre / MT4 frame. It's most likely the normal M Trax Ti 1000 / 2000 / 3000 frame.


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PostPosted: Wed Sep 18, 2019 8:03 pm 
Retro Guru

Joined: Sun Jun 16, 2013 2:57 pm
Posts: 1788
Location: Porto / Plymouth
TOMAS wrote:
could you get it blasted? Deffo stay away from chemicals due to the bonding but I was told by a Raleigh guy that when they were painted they then went into an oven, so I've often wondered if heat could be used to remove the paint? Get some pics up to see what the finish is like at present...


Blasting, apparently, is also dangerous for the bonded Dynatech frames because the process can generate a fair bit of heat as well.

What I would try is masking very very well all the bonded joins, and carefully remove areas of the paint using paint stripper, but only on areas that are far from the bonds. Then sand off the paint near the bonds by hand.


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 Post subject: Re:
PostPosted: Wed Nov 06, 2019 9:41 pm 
Retro Guru

Joined: Sun Mar 04, 2018 5:05 pm
Posts: 626
Location: Blue shadows on the trail
If anyone hears of a Dynatech mtb in the 40cm frame that is available I'd be interested. Frame only, full bike, whatever...


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 Post subject: Re: Re:
PostPosted: Thu Nov 07, 2019 12:59 am 
Dirt Disciple

Joined: Mon Oct 13, 2014 7:23 pm
Posts: 53
Markybeau wrote:
If anyone hears of a Dynatech mtb in the 40cm frame that is available I'd be interested. Frame only, full bike, whatever...


Have you seen this one... not quite a 40cm but a lovely bike!

https://rover.ebay.com/rover/0/0/0?mpre ... 3593952573


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PostPosted: Sun Dec 01, 2019 11:16 pm 
Retro Guru

Joined: Sun Dec 28, 2008 12:12 am
Posts: 768
Location: Herts
Pics of my latest acquisition below. Apologies for the grime - it had been in a shed for several years, and I haven't had a chance to clean it yet.

I'm puzzled by the paint - frame number says it's '93 (D04128), and the stickers' presence suggest that the paint is original, but AFAIK the '93 range all had bare Ti tubes? That seatpost is a Dynatech branded one, so presumably it was originally bought as a complete bike.

Any ideas?

Image

Image


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PostPosted: Sun Dec 01, 2019 11:35 pm 
Retro Guru

Joined: Sun Jun 16, 2013 2:57 pm
Posts: 1788
Location: Porto / Plymouth
I have the same one, it's a 1993 M Trax 400. The top and down tubes are commercially pure titanium, the rear triangle and fork are cromoly, and the head tube is aluminium. It originally came with an Altus A10 drivetrain, diacompe 986 and SS5 brakes, and Deore DX thumbshifters.


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