Does anyone sell Triple Tree Forks with suspension?

dparenti13

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Sep 24, 2016
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I really have no idea what I'm doing looking for parts. I can put a bike together, but it's really hard to find parts that aren't ridiculously expensive. Especially wheels.
 


FurryOnTheInside

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Since downhill mountain bikes have "upgraded" to 27.5" and 29" wheels there are many used, dual crown aka triple tree, racing quality forks available in good used condition. The question is what you can afford.

A downhill mountain bike only goes fast for a few minutes, even the longest races in the Swiss alps are only 15 minutes from the top to the bottom. If you are riding at 40mph for extended periods of time you really need lots of oil to absorb and pass on the heat from the damping (ALL kinetic energy "absorbed" in the damping of a shock absorber is turned into heat, only the spring returns the kinetic energy).
The old fashioned coil sprung and open oil bath damped forks (old mx technology) will provide the heat sink and heat transfer you require.
The company that forst brought this tech into the mtb world was Marzocchi. These forks, originally made in Italy but developed in the USA, were for 1/18" threadless and 26" wheel. The quality of these original forks was impeccable. The production moved to Taiwan and the air tech took over due to weight concerns, and the quality went down, now the brand is no longer popular even with the mtb scene. However some old open oil bath forks are still out there and they last just fine if they are serviced and seals are replaced when necessary.

The only recent and "low priced" dual crown fork made with open oil bath, that I know of, is the Chinese made DNM USD 150. I have no idea how good it is.
This is NOT the DNM USD 8 which is a cheap and very flexy Chinese made air sprung fork.

Marzocchi Super Monster T
Marzocchi Monster T
Marzocchi Junior T
DNM USD 150
 

dparenti13

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Thanks for the info. One more question, where can I find a crank and bottom bracket(not sure if that's the right name), ideally with around a 44T sprocket that will fit this frame?
 

FurryOnTheInside

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Thanks for the info. One more question, where can I find a crank and bottom bracket(not sure if that's the right name), ideally with around a 44T sprocket that will fit this frame?
A bit off topic lol but that is standard non threaded BMX aka USA bottom bracket shell so any bike shop or ebay etc. will have a three piece or one piece (don't get a one piece) crank set which will include the bearings and press fit cups to fit to the frame.
 

dparenti13

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A bit off topic lol but that is standard non threaded BMX aka USA bottom bracket shell so any bike shop or ebay etc. will have a three piece or one piece (don't get a one piece) crank set which will include the bearings and press fit cups to fit to the frame.
Yeah, I know it's a bit off topic hahaha, but what should I look up on ebay to find one, USA bottom bracket crank? or, standard threadless BMX bottom bracket crank? Not familiar with the phraseology for these parts...
 

FurryOnTheInside

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Yeah, I know it's a bit off topic hahaha, but what should I look up on ebay to find one, USA bottom bracket crank? or, standard threadless BMX bottom bracket crank? Not familiar with the phraseology for these parts...
I would say three piece BMX crank or crankset. (Maybe an old Primo crank set would look nice and they're considered overweight now so should be cheap.. I really like used and outdated parts for value and beef) :)
 

Sumsloppymeet

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id say nay on suspension with these triple trees enless you can invest in a high quality one they add wayy to much on the vibration end and they sway it gives going around sharp turns is very offsetting i returned a set for rigids and they havent let me down
 

FurryOnTheInside

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id say nay on suspension with these triple trees enless you can invest in a high quality one they add wayy to much on the vibration end and they sway it gives going around sharp turns is very offsetting i returned a set for rigids and they havent let me down
Agreed! If it isn't a quality fork he could certainly be adding flex, which is nottt a good feeling in turns. And unless it has decent damping (preferably adjustable), could allow the frame/bars to move up and down with the vibration of the engine (why I rage against springer forks on m-bikes)
The OP never actually gave is a budget so it may not even be possible to pick up a decent used downhill fork for the money he has to spend.
A good used Rockshox Boxxer or Marzocchi Junior T would be the bare minimum to do the job, but does he have used Boxxer / Jnr T money? If not then rigid is certainly the only practical way to go.
 

Will'smotobikes19

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That’s the name that escaped me Marzocchi. The suntour XC shocks are fine they’re still $70 for a knockoff. They have adjustable preload and disc/v brake compatibility. I think mine have 110mm travel. Kinda wish they had rubber boots covering the exposed area on the shock because grit will get on there. Unless you get seat type/position right I think the clip ons would be uncomfortable as bike frames have different geometry than a sport bike.
 

darwin

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May 26, 2008
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Looky on Craigs in the bike parts section. That category has exploded since being added recently.
 
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