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View Full Version : 400ex a-arms on 300ex



bcmx8
10-27-2005, 06:40 PM
alright im probably getting a 300ex and im trying to figure out wht i should do with the front end. ive seen a lot of 400ex a-arms on 300's is it so u get more travel out of the shocks.
ive been thinking about getting jd plus 3 400ex a-arms, pep limited mass shocks, and the hetrick shock relocater. is all that going to wrk together and what do u guys run

ZeroLogic
10-27-2005, 08:23 PM
the geomentry is worng on it if you do a quick serch you should find all the info you need

POW 352
10-28-2005, 07:24 AM
if your going to get arms like the 400ex +3 or whatever you have to let the company know you have a 300 because they have to make the uppers and lowers slightly different than that of the 400 for it to work completely right...but you can still get a hetrick racing upper shock relocation mount to fit the 400 ex shocks so that you have more shock and mor travel

rollie
10-28-2005, 12:01 PM
I fyour gonna spend like $2000 on a 400ex front end and the geomotyr stil lisnt going to be right and it will be a +6 a-arms with stock offset wheels will put you at like 52 inches....which is rediculis and illeagl if your looking into racing it...my point is if you go nna spend that much just buy 300EX73's front end....if not his just buy a GHD i think it is Long travel front end and some 400ex lenth (16.4 eye to eye i beileve) shocks and bolt it up, it will be 1000 times better than a 400ex front end

300exOH
10-28-2005, 12:25 PM
I agree with nacsracer12. If you're going to spend the money get some +2 or +3 a arms built for the 300ex. You can also use a shockmount bracket and custom built shocks to gain travel. I have burgard +2's,shockmount bracket and custom elkas on mine and it's a huge improvement over stock and much better than the 400ex conversion also. With this setup you will have somewhere close to 10" of wheel travel.:devil:

POW 352
10-28-2005, 03:07 PM
yeah exactly what im saying... ment to put +1 400ex arms which is somethin like 300ex +3 should be sweet..i have the 400 front end now and love it but when i get the money im getting 300 plus 3 set up for my shock relocation bracket

exman
10-28-2005, 05:10 PM
long shock 16 1/4 inch shocks,,,, NO shock mount relocater needed, made from 4130 chromo molley,,,12.5 inches of travel....plus threes with stock rims will put you at 48.25 inches width....geometry is right on.....elka will set you up woth some triple rates comp and rebound adjust for them no problem. its smooth no push,,,and sits the quad just right.

bcmx8
10-29-2005, 01:56 PM
does ghd have a website?

hondardr4life
10-30-2005, 10:15 AM
Ok, well not many other people will agree with me on this one, but. I use stock 400 a arms on my 300 with 14 1/2 inch shocks. Banshee shocks are 14 1/2 inches, but the works that I have were custom made to be on a 300ex with 400 a arms and not need a relocator bracket. I dont think it makes it handle that much worse, it gives you slightly less of a turning radius but thats about it. I have no issues with bumpsteer what so ever. You can also use the relocator bracket, and stock or aftermarket 400ex shocks. Either way, its better than spending $2000 for a 300ex front end setup. Total, the entire setup with the stock 400 a arms, relocator bracket, and 400ex stock shocks with run you about $250 - $300.

ZeroLogic
10-30-2005, 04:24 PM
what dose it mean when people say the geomotry isnt right?

300ex73
10-30-2005, 05:40 PM
Basically, your caster and camber aren't going to be correct. If the spindle doesn't come at the correct angle, it'll cause the tierods to push the spindles, and cause a lot of toe in. It'll make it harder to steer when jumping, or doing aggressive riding. It's the same way when some of the Cannondale guys try to put 250R or 400EX front ends on their quads. It just doesn't work right.

orangeEX
10-30-2005, 06:24 PM
please shut up about caster and camber, and geometry
put them on and look at it, if you like the way it looks then,
ride it . if you like the way it rides , KEEP IT
if not consider it a lesson learned and spend all your
money on aftermarket arms and shocks.....:D

Sjorge450R
11-18-2005, 07:54 PM
What if I were to use 400ex spindles too. Would that make it work. Im only 15 and can justify spending $1500 for a front end on a small sport quad that I will out grow in 2 years. And this set-up cant be worse than the predator 90 i rode this past year. :macho

Elka83
11-18-2005, 08:12 PM
]im running 400ex roll design lt a arms, hetrick shock mount re-locater, 400ex spindels and elka shocks, IT WORKS FINE, slap a steering stabilizer on and your good, they slide in and fit perfect, but u have to make sure to buy 400ex spindles, even hetrick uses jb a arms for there 300's that ARE NOT made for a 300

Sjorge450R
11-18-2005, 08:47 PM
yeah i think i am going to call hetricks monday. I just dont want to have to spend $390 for burgard a arms when i can get 400ex with added travel. O I already have a stabilizer.

300exr
11-22-2005, 09:54 PM
I have stock 400 arms on my 300 and im lookin into used plus 2's or 3's, just save your money and go with something actually for your 300, it will be worth it unless the 400ex setup you choose is very nice and setup properly. btw, where in MD are you, i just went down to a track in easton called the landing and it was really nice, you ever been?

reconmaster
11-23-2005, 04:26 AM
i have the set up you just have to mod the frame double check everything I have to reeadjust maybe twice since i have have put it on its a good way to save $$$$

Kawboyz beware
11-23-2005, 06:19 AM
Well I have a 400ex front end on my 300 and the issue I see is the tire has to much negative camber ( kinda looks like / \ from the front). with that being said the bike doesnt have such a tight turning radius. The reason for this is because the upper a-arm mounting locations on the frame are closer together than that of a 400ex. I believe is its about a 1/2" narrow. I also made my own custom front shock relocation. Now I dont seem to have and real issue with this setup since I have a 350x motor and swingarm back. with more power I am able to swing the rear around fine.

300ex frame and stem and plastics.
400ex complete front end including spindles and shocks
350x motor, carb, air tube, swingarm, and axle
raptor 660 rear shock.\


this winter I plan on cutting off the upper balljoints and making them adjustable. by using a VW or Ford Ranchero tie rod ends. this is the same thing the a arm MFRS use

300exOH
11-23-2005, 08:43 AM
Originally posted by Kawboyz beware
Well I have a 400ex front end on my 300 and the issue I see is the tire has to much negative camber ( kinda looks like / \ from the front). with that being said the bike doesnt have such a tight turning radius. The reason for this is because the upper a-arm mounting locations on the frame are closer together than that of a 400ex. I believe is its about a 1/2" narrow. I also made my own custom front shock relocation. Now I dont seem to have and real issue with this setup since I have a 350x motor and swingarm back. with more power I am able to swing the rear around fine.

300ex frame and stem and plastics.
400ex complete front end including spindles and shocks
350x motor, carb, air tube, swingarm, and axle
raptor 660 rear shock.\


this winter I plan on cutting off the upper balljoints and making them adjustable. by using a VW or Ford Ranchero tie rod ends. this is the same thing the a arm MFRS use

That's why the 87 250r a arms(maybe 88 also) worked a little better. They were already camber adjustable from the factory. I had them on mine for a while with 400ex spindles and I noticed the reduced turning radius too. I still wasn't happy with it though. I ended up switching to aftermarket arms and I'm much happier.

bcmx8
11-23-2005, 06:15 PM
i no that hetrick runs JB 400ex a-arms with their shock mount relocator on their 300ex. how wide would a 300ex be with plus 2 400ex a-arms.

300exr- yea ive been to easton about a year ago on my blaster and it was awesome. the reason i dont go there a lot is because its far away but this spring when im done with my 300 i plan on going out their wwith some people. where in md do u live i live in charlotte hall about 5 mins from budds creek

ZeroLogic
11-23-2005, 08:43 PM
400ex stock a arms are about + 1 1/4 to 1 3/4 so just add that to 2" and its about + 3 1/4

drifterx
11-23-2005, 09:24 PM
Originally posted by bcmx8
i no that hetrick runs JB 400ex a-arms with their shock mount relocator on their 300ex. how wide would a 300ex be with plus 2 400ex a-arms.


Plus 2 400 a-arms would be like +3 1/4 300ex a-arms, like zerologic said. A 400ex front end WILL NOT be right though. Sure some people say they don't notice bump steer and stuff, but it's there, and they're just used to it, and it'll be much easier to ride with a wider 300ex front end. Seriously, like they been saying, if you're going to drop that much into a front end, get a 300ex front end, and not worry about a thing. Go with those GDH a-arms, and some elkas, and you can't go wrong... Just my $.02

300exr
11-23-2005, 09:39 PM
i agree, my arms were dead after about 4 hours of riding at the track with a few breaks in between, idk if thats from not being conditioned, but i can certainly tell you it does push and there is i guess "bumpsteer", it seems like the front end is all over the place, i mean if i didnt know any better id say its fine, but somethings just not right

bcmx8- i live out by westminster

ZeroLogic
11-23-2005, 09:46 PM
just a quick qustion

if i got burgard +3 300ex a arms and stock yfz shocks would that work fine? i can get the resprung and stuff so they would run right on the 300ex chassie right?

chapmanmd
11-23-2005, 10:27 PM
Now my $.02 worth...

I raced two hare scrambles with the 400ex a arms and 400ex shocks. All that I can say is NEVER AGAIN. Dude, I liked to killed myself with that POS setup.

Yeah, I know, I was one on here saying that I thought it would work... blah blah blah. I was an idiot.

Picked myself up a pair of chromolly ASR a arms, bought some awesome PEP front and rear shocks from atvracer9m, and life is good again.

Just sent the shocks to Baldwin Motorsports for fine tuning and rebuilding. Cant wait til they get back.

Bottom line, spend the $$ on stuff that was made for your quad, unless of course youre building a crf250 powered 300ex... heeheehee

Happy Turkey day!!!awesome

ZeroLogic
11-23-2005, 10:55 PM
Originally posted by chapmanmd
Now my $.02 worth...

I raced two hare scrambles with the 400ex a arms and 400ex shocks. All that I can say is NEVER AGAIN. Dude, I liked to killed myself with that POS setup.

Yeah, I know, I was one on here saying that I thought it would work... blah blah blah. I was an idiot.

Picked myself up a pair of chromolly ASR a arms, bought some awesome PEP front and rear shocks from atvracer9m, and life is good again.

Just sent the shocks to Baldwin Motorsports for fine tuning and rebuilding. Cant wait til they get back.

Bottom line, spend the $$ on stuff that was made for your quad, unless of course youre building a crf250 powered 300ex... heeheehee

Happy Turkey day!!!awesome


you gave away your .2 cents alot today:p and happy turkey day to ya to:D :p

chapmanmd
11-23-2005, 11:00 PM
Hey, at least Im not asking if my yellow 330ex will outrun someone elses red one...:cool:

bcmx8
11-24-2005, 01:03 PM
i geuss ill go with 300ex a-arms. since im doing that is there any type of long travle arms that are good

exman
11-24-2005, 11:08 PM
gdh arms are the only so called long travel arms out there that are chorme molly for the 300ex

ZeroLogic
11-25-2005, 11:37 AM
Originally posted by ZeroLogic
just a quick qustion

if i got burgard +3 300ex a arms and stock yfz shocks would that work fine? i can get the resprung and stuff so they would run right on the 300ex chassie right?

anyone?

XCAdam89
11-25-2005, 11:47 AM
Burgard also has +4+1 LT A-Arms for the 300ex, why are switching to a 300 anyways? This is Adam from MXB...

chapmanmd
11-25-2005, 12:42 PM
ASR also makes a very good LT 300ex front end.

www.quadpartsguy.com

bcmx8
11-25-2005, 06:44 PM
Originally posted by XCAdam89
Burgard also has +4+1 LT A-Arms for the 300ex, why are switching to a 300 anyways? This is Adam from MXB...

i dont want +4 a-arms that just seems to wide. im going to a 300 because i am sick of my blaster. i have always been having trouble with it. everything that could go wrong has happened to it like last week i was just out riding at a gravel pit not jumping anything to big and the next day i saw that i cracked my frame in three different places and 2 of them were right through the frame. its just been costing a lot of money to fix it and i like the power of 4-strokes better. i got a 300 a few days ago and it feels like it has a tone of power already. i no that once i put a exhaust on it it will smoke my blaster which has a built engine. i feel so much better on the 300 its bigger the fropnt end is so light going through whooop and jumping. i just like the 300 a whole lot better than my blaster and i woulf recomend a 300 instead of a blaster to anyone!!!

orangeEX
11-27-2005, 07:11 PM
here is my wifes setup now...http://www.imagestation.com/picture/sraid195/p9437be08f862abfcb2120fb3606e7c3c/f1573b38.jpg

i had to trade the 450 shocks for these
http://www.imagestation.com/picture/sraid195/pad32744509f2525f00c080873c911eb1/f1573aee.jpg

sorry the 300's pic is alittle stretched.

reconmaster
11-27-2005, 07:27 PM
heres my set up
cut the shock towers
http://pic.piczo.com/img/i70051796_45523.jpg
shock towers raised 3inches with a new bracket and fender mounts
http://pic.piczo.com/img/i70051820_77205.jpg
http://pic.piczo.com/img/i70051814_56897.jpg
NOrmally sits
http://pic.piczo.com/img/i76891332_728.jpg
http://pic.piczo.com/img/i131037606_44965.jpg
http://pic.piczo.com/img/i135972597_17438.jpg