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Discussion Starter #1
ok so the kiddo's 70 is almost complete .. now the 90 has torn down & getting some LITTLE mods :lol: that include fixing the rear brake setup, moving steering stem upper mount ,gusseting the frame , moving shock mounts and trimming excess weight !!
.. only a few pics rt now of the ongoing work but more to come
the 90 is an older 06 ..& I can see the differences in frame mostly ..so the frame & swingarm need the most attention on the chassis ..1st big system on the 06 I will be modding is the rear brake mess !!
it has to be like the 07 70 set up to make her comfortable when ridng both machines ..
check out the crappy factory set up ....well its out of here !

 

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Discussion Starter #2
more pics of the section of the frame I plan to mod/fix :)
the steering stem upper mount location,.. heres comparing the 06 to the 07 .the 07 is obviously stronger & better ... because its higher & supports the stem closer to the bars ..

1st the 06 crap


the 07



a couple pics of the fix/mod :) after weld & before PC of coarse lol




 

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Nice work(as usual for you) Dave.I havent came across an APEX machine around here.Are they better than the Kasea,obviously the water cooling is a big plus.The Extreme Typhoon looks like a miniature R,but the four stroke engines lack the power of the old 2 stroke 90's they replaced.Ive been looking around,my girl is about to have to say bye-bye to the LT-50.
 

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Discussion Starter #4
well I am not an expert (yet ) ..on mini quads .. but I would yes ..
& considerring Kasea I beleive has stopped production from I understand ..
the attraction of the Apex are dual a arms w/ adjustable cambers ,adjustable shocks , water cooled motor ,high preformance clutch,adjustable timing & (07)very strong frame all from the factory & just for starters ..stock ..
I'll post a link to the apex site & to a few sellers in the midwest ...& if ya look on ebay for the apex you will see the 08 long travels quads they have just put out on the market

PS I wouldn't touch a typhoon w/a 10 ft pole LOL I can explain why anther time if ya like
 

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The APEX is outstanding - picked one up for my kid last summer. MXR100. Badass little machine! if there are any specific pics of anything on it that you'd like to see, just let me know and I'll post them up.
 

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Discussion Starter #6
cool another apex owner ,..yeah the apex is good machine stock,a good platform for mods also . ..correction the 07 & 08 are good !!!
but like many (big & small ) quads they need mods to be competitve
its 06's that are not quite up to my standards for racing & have obvious differences ..I gonna guess yours is a 07 & you dont race??

my daughter will be racing MX with 2 (70 and 90 )this year but primarily putting our biggest efforts into the "metrakit" 70 :) for her first year quad racing ,last year she raced 2 50cc bikes & moving up to 65's (ktm)this year ,heres a link to some info & pics of the fully powdercoated 70 custom we have going

http://www.r-central.net/trx250rforums/ind...hp?showtopic=21
 

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It's an '07, and the kid does race it. Pretty good so far, too. Needed to replace the belt, install the slipper sprocket, and I'm still deciding on whether or not to replace the clutch springs or the weights, or both together.
 

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Discussion Starter #8
look into the better Kevlar belts,..& replace both weights & springs ... just wondering who built the slipper sprocket your using ? where do you race ? class cc class ? is the class specifically for cvt's over 90cc's..? or some sort of open class ..?..meaning do you run against all different types of minis or just cvt's ?
 

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Discussion Starter #9
ok these pics are going back to the 1st post ,the "mess" you saw above was completely removed & all mount tabs cut out & modded ...some 07 type brackets were fabbed up so the 07 type brake system can be mounted heres a few pics to help understand ...


the new 07 style brackets fabbed up &welded in on the 06 frame


the 07 rear brake system mounts from the factory
 

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Discussion Starter #10
heres how the system mounts (07) when installed looking way better then the 06 ..now both quads will work the same way for her



 

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look into the better Kevlar belts,..& replace both weights & springs ... just wondering who built the slipper sprocket your using ? where do you race ? class cc class ? is the class specifically for cvt's over 90cc's..? or some sort of open class ..?..meaning do you run against all different types of minis or just cvt's ?
Going for the Kevlar belt now, after cooking the stocker in the dunes, and still checking out the weights and springs. One of them, or both will go in. Undecided yet on it/them. I need to do something to it to control the added load of 6-paddle SandStars and the sand.

Slipper sprocket was made by West Coast Quads, same place I picked up the bike. Great place, great owner, and he's got just about anything you need for a mini in general, and the Apex bikes specifically. With the slipper sprocket on there, I have no worries at all about the trans, with jumping and landing on the gas. The Apex case saver just doesn't cut it.

I'm in AZ, so he's been racing primarily at two different places, and they support a 90-105cc class, trans isn't specified. I'm still trying to find out if Speedworld will/does have a class for the 100s. If they do, he'll be out there through the week and weekends.

Mean lookin' stuff you're brewing up there - that's some nice mods!
 

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Speedworld is actually running thier own Quadcross this year. It's 8 rounds, with two running with the ITP Quadcross. That means all ITP QX youth classes (and there are about a hundred of 'em) will be run in the SW QX. Neat stuff.

I'm actually headed out there Wednesday. Where in the valley are you?
 

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Discussion Starter #14
here in district 6 (PA,NJ,NY)we have several CVT classes & some tracks even have a girls class ...we race these mini's seperate from others like JB mods,cobra's etc..our legal ;) limit is 90cc's tho for the CVT 's I'm told its 1 of the most competitive district's in the country for CVT's..I am new to it & working hard to be ready,.. cause she dont like to loose !! :eek: ... its not unusual to have 5-6 invested a mini here.
not sure what springs & rolllers would be good for a load like sand & sand tires etc..I 'm sure it strains stock motor tho ! maybe clutch should upped to 2000/2400 rpm also ..let me know what you come with up
Yeah I was asking about the slipper sprocket & I aware of West Coast's set up because it is the final motor mod I am considering ,I have a semi-local guy ready to let me try the setup before we actually pay for it so ..but the 70 motor is at 69.87 cc's & already has a ported metrakit topend ,the stock apex gears were replaced with hardened trans gears & a trans countershaft bushing & has the 4.5 gram rollers & red springs (forget the detail on them ) & thinking about a unrestricted variator set up depending on how hard it pulls w/the porting ..& next I gotta figure out wether we like the 2K or 2400 rpm clutch springs for launches & best gearing for the tracks we run

these cvt mini's are gonna make me think & work way to hard LOL & then we are gonna do up her 90cc after that !
these apex's sit a little HIGH IMO & we run alot hard pack MX tracks here so I am hoping lowering these a tad will be ok for them ...just hope the ground clearance issue doesnt bite me in the ass ... but if it ever does I do have other unmodded & stock swingarm & a arms ready to go
 

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Discussion Starter #15
Nice work(as usual for you) Dave.I havent came across an APEX machine around here.Are they better than the Kasea,obviously the water cooling is a big plus.The Extreme Typhoon looks like a miniature R,but the four stroke engines lack the power of the old 2 stroke 90's they replaced.Ive been looking around,my girl is about to have to say bye-bye to the LT-50.
Dave what are ya looking for new or used wanna spend a bunch or a little??
if lookin for used I have a very nice all stock but wheel spacers LT80 or I have a full race ready w/ extended axle a arms ,works shocks, renthals,WRH engine & pipe douglas wheels ,maxis tires etc many parts ,.. just plain fast built up eton viper 90 I am seling
 

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Discussion Starter #16
ok so here are the pics of the 06 gusset(s) work to make the it stronger like the 07 is from the factory ..

1st a pic of the 07 rear frame gussets & shock rear mount ,.. its located forward on the crossmember




the next 3 pics show 6 more gussets were added to the 06 & rear shock mount was relocated from the back side of crossmemeber to front side to be same as the 07
this help get the back end down & promotes better handling






 

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Discussion Starter #18
yeah sorry I have been a little busy ,powdercoating 90 parts ,selling her KTM 50's working on finishing up the 70 , getting the motor in the 70 apex etc etc but ..
but yes actually I am just about done powdercoating all the 90 parts ...
will have some pics of them shortly ...
I didnt show the 06 swingarm 's work before PC ..so heres apic of the 06 swingarm with rear shock mount relocated to lower the rear a bit & added in gussets for strength like the 07 swingarms are built at the swingarm pivot ... & if you look carefully at the chain tensioner it has its own bracket to mount it further forward on the swingarm & not on the skid/ guard ..to keep it off the ground better it now mounts right on the swingarm

06 swingarm



07 swingarm

 

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Discussion Starter #20
naah there is better 1's out there for sure ..ours will be some of best looking tho .. & may run in the top 3-5 where we 're gonna racing this year ..but that kinda depends how she does for her 1st year ,.. she'll have 2 good running mini's
its the suspension(s) that I am just getting started with ;)
no I haven't called John .. I had a guy send me several shocks in different lengths to see where I wanna be at the rear ..then I will decide about the shock set up I am wanting ,then John will be hearing from me...
for now the original fronts were completely rebuilt for her weight by a co. in florida that builds mini suspensions for these apex's
 
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