The Midwest Mini Mods Swingarm

All swingarms being sold are now V3.  This newest version has all sides of the arms machined for more finished look and we updated the shock brace to a solid, one-piece design.  Photos are not updated yet, pics shown are V2

   Custom designed , CNC machined aluminum swingarm upgrade for the Razor SX500 and MX500/650 made right here in Minnesota. This offers roughly a 3in extension from stock swingarm length, it also includes adjusted shock placement, and ability to adjust the rear wheel so there is no need for a chain tensioner! Brake adapter is stock razor size. Updates on V2 include a much more robust brake adapter design, bearings in the swingarm as well as support notches to hold the shock mount incredibly secure in place during all types of riding!  We offer 3 versions.  With our available qs90 and qs 120 mounts, get rid of the my1020 heat issues!  Beware, the qs120 with 200 line amps is almost uncontrollable.  We have the qs90 on many bikes and reach speeds over 60 and have not had any heat issues so far. 

  Please note we have only fully tested this swing arm on the SX500 with 260 and 280mm shock. You will need a full size shock that we offer or are available elsewhere like amazon and eBay.  Please make sure you have a shock that has an m10 hole. We have found the weight to be around a 500 pound spring for riders under 100 pounds, a 700-850 spring for riders around 100-200 pounds. And get a 1000-1200 pound spring for riders over 200. We offer spring rate adjustment tools with our shocks also.   VERY IMPORTANT---Make sure to use thread lock on all bolts that do not have a nut on them!

** The base plate pictured is only included with swing arms ordered for a QS90 or QS120, the FW11 and MY1020 kits do not require this base plate.**