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DT250 Street tracker, sort of

  • MrBernzo
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Replied by MrBernzo on topic DT250 Street tracker, sort of

Not much action here lately but I have finished the mods on the rz exhaust. 
TIme to get cracking on the rest of the bike now. Not much action here lately but I have finished the mods on the rz exhaust. 
TIme to get cracking on the rest of the bike now.  
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11 Jan 2022 02:59 #81

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Replied by Csmith on topic DT250 Street tracker, sort of

Hey, mate. I'm building a sort of tracker/brat/scrambler love-child whore DT250. Just wondering what bike is your front end off? Disk brake would be pretty nice.....
04 Aug 2022 16:19 #82

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Replied by MrBernzo on topic DT250 Street tracker, sort of

Hey, the front end is off a 90's dt200. It bolted straight on using tapered roller bearings that fit the 200.
The forks are leading axle which means that at full lock the forks hit the tanks. They are also about 100mm longer. I have shortened the stroke length internally and have the forks about 50mm through the triple clamps.
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06 Aug 2022 20:21 #83

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Replied by Buggin on topic DT250 Street tracker, sort of

I am curious do they hit the tank because they are bigger or just because the stops are located differently on the frame compared to the 200's lower yoke stops? Is there actually less degrees from lock to lock before altering? Maybe I am over thinking it :)
06 Aug 2022 22:08 #84

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Replied by MarkT on topic DT250 Street tracker, sort of

The triple clamp offset is less because the axle is offset forward.  Needs to be this way to get geometry correct. 

Less offset makes the clamps/tubes hit the tank.  Bikes with leading axle forks came with different fuel tanks for clearance...  like the 78 vs 79 US DT125, DT175, and DT250.   1979 tanks have more fork clearance than 1978 since 1979 triple clamps have less forward offset. 
1963 YG1-T, 1965 MG1-T, Allstate 250, 1970 CT1b, 1971 R5, 1973 AT3MX, 1974 TS400L, 1975 RD350, 1976 DT175C, 1976 Husqvarna 250CR, 1981 DT175G, 1988 DT50, 1990 "Super" DT50, 1991 RT180, 2017 XT250
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Last edit: 06 Aug 2022 22:23 by MarkT.
06 Aug 2022 22:22 #85

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Replied by MrBernzo on topic DT250 Street tracker, sort of

As Mark said, it's about the offset not anything else. 
if you go back through this thread, you will see my solution to stop the forks hitting the tank. It comes with a reduced amount of steering lock though. 
08 Aug 2022 05:43 #86

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Replied by MarkT on topic DT250 Street tracker, sort of

Here's the triple clamp offset difference between the later DT175 with and without leading axle forks.

 

 
1963 YG1-T, 1965 MG1-T, Allstate 250, 1970 CT1b, 1971 R5, 1973 AT3MX, 1974 TS400L, 1975 RD350, 1976 DT175C, 1976 Husqvarna 250CR, 1981 DT175G, 1988 DT50, 1990 "Super" DT50, 1991 RT180, 2017 XT250
Last edit: 08 Aug 2022 06:23 by MarkT.
08 Aug 2022 06:22 #87

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Replied by Csmith on topic DT250 Street tracker, sort of

Thanks, mate.
14 Aug 2022 21:03 #88

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