24x8x12 tires on yerfdog

[tim]

Probie


Joined: Thu Feb 02, 2012 12:02 am
Posts: 4




I know the smart thing to do is save up and buy different tires,but here goes .When widening a spiderbox front end which will hold up and drive better widening the a arm 4 inches,use a 8 inch spindle axle and 3 inch spacer(wheels are already backwards) (2/5???) or moving bulkhead and steering forward enough to clear the frame ?
The spindle I can build to share the load throuhout the whole thing ,but that is alot of pressure on balljoints(BD heavy duty).The shocks also from bd can be moved closer to the bottom ball joint if i have to extend the a arms. I know what would be easy just dont know what is best
Thanks for all input

Tim

[ckau]

IMO- Save up and get the correct wheel/tire combo, 22x8/10.
Any of your other options are going to have some detrimental effects. Strain and forces placed on the front wheelbase go up dramatically as the wheel base is increased. You would have to re-engineer just about every single part of the whole front end to get it to hold up. Thats alot of work with no real advantage when a 22" will work just as well!
The spiderbox already has a crappy turning radius. increasing the wheelbase front/ back will multiply this problem.
If your using the same size on the rear , the whole idea is redundant. the spider box doesn't have enough torque to pull such a large tire. you can't gear it low enough! There's not enough room for the axle sprocket it would require and the internal gearing is as low as it gets already. Yea you would have some killer ground clearance but you wouldn't have the power to stretch a wet noodle and would need a 40 acre field to make a turn.
Using 22" all around will require nothing more than switching out a few front end parts for compatibility,( the homework has already been done). Plus, with no real noticable loss of power from the rear as well. If you do by chance loose some power, a few simple cvt changes fixes that. It's been proven, as long as you can keep traction, a spider with 22's will go anywhere or climb just about anything you point at!

[GX150]

Just to add to CKau's post: The rear can accept sprockets larger than 39t only by relocating the axle downward or rearward from the stock position. You also have to remember as you increase axle sprocket size, that area will be hanging low close to the center line of the buggy and be more exposed to damage.