OzVMX Forum
Clubroom => Tech Talk => Topic started by: John Orchard on December 27, 2018, 06:43:31 pm
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Does anyone know of tricks for Yam DT2 forks in making them race-ready?
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Cartridge emulators are available. I run Race Tech gold valves in a set of TY250 forks which like the DT2, have 34mm Kayaba fork tubes. The gold valves took ages to get set up but are quite good now.
On another trials bike with TY250 forks I have fitted aftermarket (modern) damper rods made in the UK which worked great without any setting up required. They are made of aluminium, have slightly more travel than standard (about 5mm extra) and most importantly have much better damping action than the standard damper rods provide.
I'm sure either of those methods would also make DT2 forks work better for MX.
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Cartridge emulators are available. I run Race Tech gold valves in a set of TY250 forks which like the DT2, have 34mm Kayaba fork tubes. The gold valves took ages to get set up but are quite good now.
On another trials bike with TY250 forks I have fitted aftermarket (modern) damper rods made in the UK which worked great without any setting up required. They are made of aluminium, have slightly more travel than standard (about 5mm extra) and most importantly have much better damping action than the standard damper rods provide.
I'm sure either of those methods would also make DT2 forks work better for MX.
Thanks Dave :-) Any idea what company in the UK made the damping rods? l'd like to get some.
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What is the inside diameter of the fork tube? You might be able to use one of these cheap valves.
https://www.mikesxs.net/yamaha-xs650-damper-valve-pr-front-forks-77-84-oem-1t3-23170-00-00.html (https://www.mikesxs.net/yamaha-xs650-damper-valve-pr-front-forks-77-84-oem-1t3-23170-00-00.html)
I have a valve here I can measure for you.
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What is the inside diameter of the fork tube? You might be able to use one of these cheap valves.
https://www.mikesxs.net/yamaha-xs650-damper-valve-pr-front-forks-77-84-oem-1t3-23170-00-00.html (https://www.mikesxs.net/yamaha-xs650-damper-valve-pr-front-forks-77-84-oem-1t3-23170-00-00.html)
I have a valve here I can measure for you.
Thanks :-) Hmmm they look a version of Goldvalve, l'll measure my forks, do you have two to sell?
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... do you have two to sell?
I have a pair I am not using so I suppose I could sell them to you.
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Cool, l'll gets the forks apart and determine the next step. Thanks.
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Cartridge emulators are available. I run Race Tech gold valves in a set of TY250 forks which like the DT2, have 34mm Kayaba fork tubes. The gold valves took ages to get set up but are quite good now.
On another trials bike with TY250 forks I have fitted aftermarket (modern) damper rods made in the UK which worked great without any setting up required. They are made of aluminium, have slightly more travel than standard (about 5mm extra) and most importantly have much better damping action than the standard damper rods provide.
I'm sure either of those methods would also make DT2 forks work better for MX.
These will be the parts, I have the full set up in my TY250 & the difference to how the forks were is huge
http://www.yamaha-majesty.com/?product=ty250-alloy-damper-rods
Thanks Dave :-) Any idea what company in the UK made the damping rods? l'd like to get some.