Planet Minis

big pete · 07-07-2009, 11:23 AM

I'm throwing ideas around for one of my builds and it calls for +1 or 2 fork legs but the ones I'm running aren't available in extended form. I want to use a spare fork leg I have and cut it into sections and weld it onto the legs that are currently on the bike.

Has anyone done this? If so, how well did it hold up?

nielspbr · 07-07-2009, 12:36 PM

For what type of forklegs? Hydraulic ones can be extended at the top with screw-in parts.

big pete · 07-07-2009, 12:42 PM

Stock Z50/Monkey forks

s_10onbagz · 07-08-2009, 01:09 AM

What legs are you running? I would check to see if Rysem can make you a new set of legs. He was working on making CT70 fork legs for a bit.

3-UP · 07-08-2009, 04:23 AM

Fast 50's make Z50 legs

damageinc2785 · 07-08-2009, 05:47 AM

do crf 50 legs fit?

big pete · 07-08-2009, 09:42 AM

Quote:

Originally Posted by s_10onbagz

What legs are you running?

I'm running a JDM fork leg with a caliper mount (for disc brakes)

s_10onbagz · 07-08-2009, 06:02 PM

JDM _______ Fork legs. Fill in the blank.

Is it the G-Craft one with the NSR drop out? The way to extend them would be very similar to how fork extensions work on NSR forks. You need to take a solid piece of steel 2-3 times longer than you want to extend them, turn all but 1-2" of the extensions down to the inside diameter of the lower fork tubes. Now you should have some tight fitting extensions made, you just need to drill a couple extra holes for your plug welds. Press the extension in the forks, make your plug welds, and run a quick bead around the forks where the extensions meet the lower legs. I wouldn't even try this unless you have the means to make the extensions yourself.

big pete · 07-08-2009, 06:08 PM

That's a ton of work that I don't want to do

. Dan suggested that I put some spacers at the top of the internals and run longer triple clamp bolts. If all else fails, I'll keep the disc setup for another project and run drums for the current one.

s_10onbagz · 07-08-2009, 06:19 PM

What springs are you running? Dan's Idea is to add preload, this will only really help if your springs are not already preloaded. Why do you need this extra 1-2"? State requirement or personal preference?

Let me understand this now. You had a nice Monkey, then you had the zb, then traded it for an xr50, and now you are building another monkey?

big pete · 07-08-2009, 07:44 PM

I'm building another Monkey. My original plans were to run the fork legs on the Monkey and run 8" wheels. Now I'm thinking about selling the CRF so I figure I would throw the NSR forks on the Monkey and run the 10" G-Craft wheels I picked up. The CRF will get the Monkey forks so that's why I need an extra inch or two.

s_10onbagz · 07-08-2009, 08:01 PM

You are nuts. That xr50 is minty. I would keep it and build a monkey on the side. I would love to pickup the 6 spokers but I just don't have the funds for them right now. I think I am going a different direction for wheels once everything else is done.

big pete · 07-08-2009, 08:15 PM

Quote:

Originally Posted by s_10onbagz

You are nuts

You're on to something. I'm pretty sure I have ADD. In the last 5-6years, I've had 15+ bikes and 6 cars

Dogboy · 07-08-2009, 08:53 PM

I run complete stock crf50 fork legs/springs in the stock z50 uppers.

You can run the crf50 fork legs with the stock z50 springs but you from memory the holes at the top of the legs (where the split pin goes) is off by 90' so you need to turn the spring to accomodate this.

Stock crf50 fork legs are the same length as crf50's. So you would have to buy the +1 fork legs.

07-07-2009, 11:23 AM	#1 (permalink)
big pete 2nd Gear Member Join Date: Apr 2008 Location: Norcal Posts: 866	Making your own extended fork legs? I'm throwing ideas around for one of my builds and it calls for +1 or 2 fork legs but the ones I'm running aren't available in extended form. I want to use a spare fork leg I have and cut it into sections and weld it onto the legs that are currently on the bike. Has anyone done this? If so, how well did it hold up?

07-07-2009, 12:36 PM	#2 (permalink)
nielspbr Euro Seagull Join Date: Feb 2008 Location: Netherlands Posts: 463 My Mood:	Re: Making your own extended fork legs? For what type of forklegs? Hydraulic ones can be extended at the top with screw-in parts.

07-07-2009, 12:42 PM	#3 (permalink)
big pete 2nd Gear Member Join Date: Apr 2008 Location: Norcal Posts: 866	Re: Making your own extended fork legs? Stock Z50/Monkey forks

07-08-2009, 01:09 AM	#4 (permalink)
s_10onbagz 3rd Gear Member Join Date: Sep 2007 Location: Connecticut. Posts: 1,550	Re: Making your own extended fork legs? What legs are you running? I would check to see if Rysem can make you a new set of legs. He was working on making CT70 fork legs for a bit.

07-08-2009, 04:23 AM	#5 (permalink)
3-UP 2nd Gear Member Join Date: Jan 2004 Location: New Brunswick, Canada Posts: 763	Re: Making your own extended fork legs? Fast 50's make Z50 legs

07-08-2009, 05:47 AM	#6 (permalink)
damageinc2785 2nd Gear Member Join Date: Feb 2008 Location: huntington, LI, NY Posts: 351 My Mood:	Re: Making your own extended fork legs? do crf 50 legs fit?

07-08-2009, 06:02 PM	#8 (permalink)
s_10onbagz 3rd Gear Member Join Date: Sep 2007 Location: Connecticut. Posts: 1,550	Re: Making your own extended fork legs? JDM _______ Fork legs. Fill in the blank. Is it the G-Craft one with the NSR drop out? The way to extend them would be very similar to how fork extensions work on NSR forks. You need to take a solid piece of steel 2-3 times longer than you want to extend them, turn all but 1-2" of the extensions down to the inside diameter of the lower fork tubes. Now you should have some tight fitting extensions made, you just need to drill a couple extra holes for your plug welds. Press the extension in the forks, make your plug welds, and run a quick bead around the forks where the extensions meet the lower legs. I wouldn't even try this unless you have the means to make the extensions yourself.

07-08-2009, 06:08 PM	#9 (permalink)
big pete 2nd Gear Member Join Date: Apr 2008 Location: Norcal Posts: 866	Re: Making your own extended fork legs? That's a ton of work that I don't want to do . Dan suggested that I put some spacers at the top of the internals and run longer triple clamp bolts. If all else fails, I'll keep the disc setup for another project and run drums for the current one.

07-08-2009, 06:19 PM	#10 (permalink)
s_10onbagz 3rd Gear Member Join Date: Sep 2007 Location: Connecticut. Posts: 1,550	Re: Making your own extended fork legs? What springs are you running? Dan's Idea is to add preload, this will only really help if your springs are not already preloaded. Why do you need this extra 1-2"? State requirement or personal preference? Let me understand this now. You had a nice Monkey, then you had the zb, then traded it for an xr50, and now you are building another monkey?

07-08-2009, 07:44 PM	#11 (permalink)
big pete 2nd Gear Member Join Date: Apr 2008 Location: Norcal Posts: 866	Re: Making your own extended fork legs? I'm building another Monkey. My original plans were to run the fork legs on the Monkey and run 8" wheels. Now I'm thinking about selling the CRF so I figure I would throw the NSR forks on the Monkey and run the 10" G-Craft wheels I picked up. The CRF will get the Monkey forks so that's why I need an extra inch or two.

07-08-2009, 08:01 PM	#12 (permalink)
s_10onbagz 3rd Gear Member Join Date: Sep 2007 Location: Connecticut. Posts: 1,550	Re: Making your own extended fork legs? You are nuts. That xr50 is minty. I would keep it and build a monkey on the side. I would love to pickup the 6 spokers but I just don't have the funds for them right now. I think I am going a different direction for wheels once everything else is done.

07-08-2009, 08:53 PM	#14 (permalink)
Dogboy PM Newbie Join Date: Oct 2007 Location: Australia Posts: 85 My Mood:	Re: Making your own extended fork legs? I run complete stock crf50 fork legs/springs in the stock z50 uppers. You can run the crf50 fork legs with the stock z50 springs but you from memory the holes at the top of the legs (where the split pin goes) is off by 90' so you need to turn the spring to accomodate this. Stock crf50 fork legs are the same length as crf50's. So you would have to buy the +1 fork legs.

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