I've been a lurker here for a while and have only really posted a few times, but figured i'd put up my newest project. I'm adding from shocks and rear suspension to a Motovox MBX10. This includes fabrication of a new front end, swingarm, jackshaft, frame support for monoshock mount, and replacement of foot pegs to allow for added degree of banking. Currently a work in progress, so i'll keep posting as i receive parts or finish fabrication:
My MBX10 had been lightly modified to allow for the addition of an HF Pred 212. The added power was really great, though it is so torqie with the relatively short wheelbase of the MBX10 that the bike was easily flipped. I figured the best way to prevent this was to lengthen the wheelbase, though, the usage of the bike made me go an alternate route. As this is primarily used on rough track, lenthening via a swingarm and monoshock seemed more appropriate.
Here's the bike torn down to the frame with everything strewn about... don't judge... i'm renovating the house also... everything is a freakin disaster over here.
Started with the swingarm as i had not yet received the materials for my front end build. Used 1" square steel tube starting at 20" to make the main kicker. The stock real axle mounts were cut from the frame and re-utilized on the swingarm.
Received the components i needed for my jackshaft setup. Welded the mounts on and test inserted the mount bearings and shaft. The mounts fit rather nicely into rear frame bend and made for a nice long weld attachment. I won't have a good idea of sprocket placement until i receive my clutch.
Received my front end components in the mail. Opted to keep close to stock ride height partly because i'm trying not to throw a whole lot of cash at this, and because i could get my hands on a Honda CRF50 front end very easily. Ebay sellers post them up for nothing as they replace the gold stock forks with upgraded items. I happened to get the forks for 17 bucks. They looked like this when i got em:
And then like this after i cut off the lower fork brace. The brace is welded to the fork itself, so it needed to be cut and ground. You're left with the forks which is what i was interested in anyway.
Size comparison between the MBX10 stock front end and one of the CRF50 shocks.
Given the size of the shock heads, i needed to cut new mounts. The stock was sized and designed differently from the stock components of the MBX10. 10"x2.5"x1/4" steel bar would do the trick for both the top mount and the lower brace.
And bolted onto the neck with the wheel installed. Still needs to receive the lower brace.
Not bad for a couple hours worth of work. As soon as i motivate again, i'll post more up. To come is frame and swingarm additions to mount the monoshock as well as lower fork clamp creation (need to borrow a drill press to get the holes right), and full install of the jackshaft sprockets.
My MBX10 had been lightly modified to allow for the addition of an HF Pred 212. The added power was really great, though it is so torqie with the relatively short wheelbase of the MBX10 that the bike was easily flipped. I figured the best way to prevent this was to lengthen the wheelbase, though, the usage of the bike made me go an alternate route. As this is primarily used on rough track, lenthening via a swingarm and monoshock seemed more appropriate.
Here's the bike torn down to the frame with everything strewn about... don't judge... i'm renovating the house also... everything is a freakin disaster over here.
Started with the swingarm as i had not yet received the materials for my front end build. Used 1" square steel tube starting at 20" to make the main kicker. The stock real axle mounts were cut from the frame and re-utilized on the swingarm.
Received the components i needed for my jackshaft setup. Welded the mounts on and test inserted the mount bearings and shaft. The mounts fit rather nicely into rear frame bend and made for a nice long weld attachment. I won't have a good idea of sprocket placement until i receive my clutch.
Received my front end components in the mail. Opted to keep close to stock ride height partly because i'm trying not to throw a whole lot of cash at this, and because i could get my hands on a Honda CRF50 front end very easily. Ebay sellers post them up for nothing as they replace the gold stock forks with upgraded items. I happened to get the forks for 17 bucks. They looked like this when i got em:
And then like this after i cut off the lower fork brace. The brace is welded to the fork itself, so it needed to be cut and ground. You're left with the forks which is what i was interested in anyway.
Size comparison between the MBX10 stock front end and one of the CRF50 shocks.
Given the size of the shock heads, i needed to cut new mounts. The stock was sized and designed differently from the stock components of the MBX10. 10"x2.5"x1/4" steel bar would do the trick for both the top mount and the lower brace.
And bolted onto the neck with the wheel installed. Still needs to receive the lower brace.
Not bad for a couple hours worth of work. As soon as i motivate again, i'll post more up. To come is frame and swingarm additions to mount the monoshock as well as lower fork clamp creation (need to borrow a drill press to get the holes right), and full install of the jackshaft sprockets.
