Planet Minis

A25MX · 10-25-2006, 05:40 PM

Does anyone know if Xr/Crf 80 or 100 forks fit on the 70? I'm looking for a cheap option to raise the front end of a 70 to about 29 inches.

ibmike13 · 10-25-2006, 06:46 PM

theres a guy on ebay/******** that has some forks for pretty cheap.his name over there is Grafixxs

808stunna · 10-25-2006, 06:54 PM

im almost sure that the 80 or 100 front end will not fit. but i think any xr50 front end will fit. and there are alot of aftermarket front ends out there for 50s.

AndRenner · 10-25-2006, 06:59 PM

Quote:

Originally Posted by 808stunna

im almost sure that the 80 or 100 front end will not fit. but i think any xr50 front end will fit. and there are alot of aftermarket front ends out there for 50s.

ya i know 50 forks wil fit for him, but i dont think they'll lift the front end much if at all. They might, but i know if u put 70 forks on ur 50 it makes it sit like a chopper without an extended swinger. I'd say just shop used and u'll sooner or later find a good deal.

808stunna · 10-25-2006, 07:05 PM

here are some cheap forks that they say will make your bike sit at 31.5 inches at the top of the fork

http://cgi.ebay.com/ebaymotors/INVER...37279279QQrdZ1

bstyle · 10-26-2006, 04:19 AM

i have 50 zochs on my 70 with a billetware swinger and its sits and rides great

tucker330 · 10-26-2006, 05:01 AM

I put CRF 80/100 forks on my 70. Use the stock 70 lower triple, and a BBR top clamp. Then use a CRF 100 brake cable to reach your high bars. My forks are slid up in the clamps a little to make the bike sit level. The rear is a +4 (really a +2 on a 70) swinger with a DC shock. I do belive that the CRF 80/100 front wheel spacer is needed. I think that the 70 spacer made the forks pull in too much.

Kurlon · 10-26-2006, 07:06 AM

BBR damping rods + HD Springs will get you another inch or so.

motokidsRfun · 10-26-2006, 09:43 AM

Tucker330 did you notice a big difference with those forks and how hard were they to adapt for your 70?

tucker330 · 10-26-2006, 10:40 AM

I went from stock to the 80/100 forks so sure it was a big change. I also changed to a heavier oil and raised the oil height before putting the 80/100forks on. I dont have a compairison with the stock 80/100 setup. I do think they have more travel than the 70 forks. The swap was actually bolt on as described. The hardest part was sourcing the all the parts from E-B*Y.

808stunna · 10-26-2006, 01:04 PM

is ebay a bad word?

A25MX · 10-26-2006, 02:17 PM

So I'm guessing that the Xr/Crf 70/80/100 have different stems?

slowracer · 10-26-2006, 06:34 PM

Quote:

Originally Posted by tucker330

I put CRF 80/100 forks on my 70. Use the stock 70 lower triple, and a BBR top clamp. Then use a CRF 100 brake cable to reach your high bars. My forks are slid up in the clamps a little to make the bike sit level. The rear is a +4 (really a +2 on a 70) swinger with a DC shock. I do belive that the CRF 80/100 front wheel spacer is needed. I think that the 70 spacer made the forks pull in too much.

Post some pics of your bike

mxjeffb · 10-26-2006, 07:38 PM

100 forks will work as said in other post stock lower clamp BBR top clamp.
100 wheel spacer and long brake cable.
I would also say BBR springs and 20wt oil.
I got some 05 100 forks off ebay for $90.00 like new.

This is my build on my sons forks on his bike.

Forks are 05 crf100 that I cut down top tube 3in. I made long travel damper rods with short top out bumpers making 8in of travel.
The damper rods I put smaller oil flow holes so that I can use 5wt oil.
Most people use 20wt to slow the forks but the oil stays at the top of the fork around the spring and takes to much time to travel back down to the bottom of the fork making air cavation in the damping.
The more travel of the fork made me need more oil than the top fork tube could hold when fully bottomed.
I made two canisters on each fork that fit between the triple clamps that I made two holes in the fork tubes for the oil to go in and out.
I can put the oil height real high to Keep the damper rod covered with oil at all times and the 5wt oil flows back down faster.
Springs are BBR.

http://i30.photobucket.com/albums/c3...b/100_1267.jpg
http://i30.photobucket.com/albums/c3...b/100_1271.jpg

USERNAME · 10-26-2006, 10:13 PM

Would they fit on a ttr 90 also with the same mods? Instead of a bbr I could use a sano top clamp.

What do you guys think?

Thanks

mxjeffb · 10-27-2006, 06:03 AM

Quote:

Originally Posted by USERNAME

Would they fit on a ttr 90 also with the same mods? Instead of a bbr I could use a sano top clamp.

What do you guys think?

Thanks

I'm not sure, I have just worked with the crf70 and I don't tell people what will work unless I have made the mod myself.

A25MX · 10-27-2006, 08:51 PM

Would I be better off putting on the 80/100 forks or should I go with some old motocross forks like cr/rm 60/80 forks?

ekripper · 10-27-2006, 09:31 PM

you could always go with the KTM 65sx forks. You can pick them up realatively cheap if you look around and I believe it's possible to make the KTM clamps work with the 70 with a spacer or stem. Don't remember for sure. I picked up a set of '04 KTM 65sx forks about a month ago for $375 with triple clamps, and the whole front brake system.

A25MX · 10-27-2006, 11:14 PM

^^^I would go with KTM forks if I could them that cheap but all the ones I found were about 600 plus another 100 to make them work with the 70 and that's more than I want to spend.

ekripper · 10-28-2006, 08:35 PM

Check out ktmtalk.com. That's where I got mine for a great price. They have a forum just for 65sx parts for sale.

10-25-2006, 05:40 PM	#1 (permalink)
A25MX 3rd Gear Member Join Date: Jul 2006 Location: NJ Posts: 1,017	Crf 70 cheap fork options Does anyone know if Xr/Crf 80 or 100 forks fit on the 70? I'm looking for a cheap option to raise the front end of a 70 to about 29 inches.

10-26-2006, 07:06 AM	#8 (permalink)
Kurlon Super Moderator Join Date: Feb 2005 Location: Windham, ME Posts: 7,796	BBR damping rods + HD Springs will get you another inch or so. __________________ http://www.x386.net/TTR 2004 ST3 - 'Duckie'?!?! 2005 CRF70RR - MiniGP Weapon 2005 CRF70 - Dirt Donk 2008 Pitster Pro X4 Motard 1991 GS500E - LRRS/CCS #771

10-25-2006, 06:46 PM	#2 (permalink)
ibmike13 3rd Gear Member Join Date: Oct 2005 Location: Romulus,Michigan Posts: 4,391	theres a guy on ebay/******** that has some forks for pretty cheap.his name over there is Grafixxs

10-25-2006, 06:54 PM	#3 (permalink)
808stunna 2nd Gear Member Join Date: Feb 2006 Location: maui hi Posts: 374	im almost sure that the 80 or 100 front end will not fit. but i think any xr50 front end will fit. and there are alot of aftermarket front ends out there for 50s.

10-25-2006, 07:05 PM	#5 (permalink)
808stunna 2nd Gear Member Join Date: Feb 2006 Location: maui hi Posts: 374	here are some cheap forks that they say will make your bike sit at 31.5 inches at the top of the fork http://cgi.ebay.com/ebaymotors/INVER...37279279QQrdZ1

10-26-2006, 04:19 AM	#6 (permalink)
bstyle 2nd Gear Member Join Date: Apr 2005 Location: gold coast australia Posts: 272 Awards Showcase Total Awards: 1	i have 50 zochs on my 70 with a billetware swinger and its sits and rides great

10-26-2006, 05:01 AM	#7 (permalink)
tucker330 PM Newbie Join Date: Oct 2005 Posts: 36	I put CRF 80/100 forks on my 70. Use the stock 70 lower triple, and a BBR top clamp. Then use a CRF 100 brake cable to reach your high bars. My forks are slid up in the clamps a little to make the bike sit level. The rear is a +4 (really a +2 on a 70) swinger with a DC shock. I do belive that the CRF 80/100 front wheel spacer is needed. I think that the 70 spacer made the forks pull in too much.

10-26-2006, 09:43 AM	#9 (permalink)
motokidsRfun 1st Gear Member Join Date: Jun 2006 Location: Florence, KY Posts: 200	Tucker330 did you notice a big difference with those forks and how hard were they to adapt for your 70?

10-26-2006, 10:40 AM	#10 (permalink)
tucker330 PM Newbie Join Date: Oct 2005 Posts: 36	I went from stock to the 80/100 forks so sure it was a big change. I also changed to a heavier oil and raised the oil height before putting the 80/100forks on. I dont have a compairison with the stock 80/100 setup. I do think they have more travel than the 70 forks. The swap was actually bolt on as described. The hardest part was sourcing the all the parts from E-B*Y.

10-26-2006, 01:04 PM	#11 (permalink)
808stunna 2nd Gear Member Join Date: Feb 2006 Location: maui hi Posts: 374	is ebay a bad word?

10-26-2006, 02:17 PM	#12 (permalink)
A25MX 3rd Gear Member Join Date: Jul 2006 Location: NJ Posts: 1,017	So I'm guessing that the Xr/Crf 70/80/100 have different stems?

10-26-2006, 07:38 PM	#14 (permalink)
mxjeffb 1st Gear Member Join Date: Nov 2005 Location: Austin Texas Posts: 100	100 forks will work as said in other post stock lower clamp BBR top clamp. 100 wheel spacer and long brake cable. I would also say BBR springs and 20wt oil. I got some 05 100 forks off ebay for $90.00 like new. This is my build on my sons forks on his bike. Forks are 05 crf100 that I cut down top tube 3in. I made long travel damper rods with short top out bumpers making 8in of travel. The damper rods I put smaller oil flow holes so that I can use 5wt oil. Most people use 20wt to slow the forks but the oil stays at the top of the fork around the spring and takes to much time to travel back down to the bottom of the fork making air cavation in the damping. The more travel of the fork made me need more oil than the top fork tube could hold when fully bottomed. I made two canisters on each fork that fit between the triple clamps that I made two holes in the fork tubes for the oil to go in and out. I can put the oil height real high to Keep the damper rod covered with oil at all times and the 5wt oil flows back down faster. Springs are BBR. http://i30.photobucket.com/albums/c3...b/100_1267.jpg http://i30.photobucket.com/albums/c3...b/100_1271.jpg

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10-26-2006, 10:13 PM	#15 (permalink)
USERNAME 2nd Gear Member Join Date: Jul 2006 Location: Monee, IL. Posts: 348	Would they fit on a ttr 90 also with the same mods? Instead of a bbr I could use a sano top clamp. What do you guys think? Thanks

10-27-2006, 08:51 PM	#17 (permalink)
A25MX 3rd Gear Member Join Date: Jul 2006 Location: NJ Posts: 1,017	Would I be better off putting on the 80/100 forks or should I go with some old motocross forks like cr/rm 60/80 forks?

10-27-2006, 09:31 PM	#18 (permalink)
ekripper 2nd Gear Member Join Date: Apr 2006 Location: Salt Lake City, Utah Posts: 355	you could always go with the KTM 65sx forks. You can pick them up realatively cheap if you look around and I believe it's possible to make the KTM clamps work with the 70 with a spacer or stem. Don't remember for sure. I picked up a set of '04 KTM 65sx forks about a month ago for $375 with triple clamps, and the whole front brake system.

10-27-2006, 11:14 PM	#19 (permalink)
A25MX 3rd Gear Member Join Date: Jul 2006 Location: NJ Posts: 1,017	^^^I would go with KTM forks if I could them that cheap but all the ones I found were about 600 plus another 100 to make them work with the 70 and that's more than I want to spend.

10-28-2006, 08:35 PM	#20 (permalink)
ekripper 2nd Gear Member Join Date: Apr 2006 Location: Salt Lake City, Utah Posts: 355	Check out ktmtalk.com. That's where I got mine for a great price. They have a forum just for 65sx parts for sale.