Biles Motorsports / JB Specialties

Biles Motorsports / JB Specialties Sharing our passion of going fast to produce top notch products.

Just finished up some billet Thundercat motor mounts. Stock copy’s. But much stronger 💪
04/14/2026

Just finished up some billet Thundercat motor mounts. Stock copy’s. But much stronger 💪

03/31/2026

I Want to let everyone know who is potentally interested in getting in contact with us. This is a “side gig” of ours. Me and my Dad do in fact have to work a full time job elsewhere. If I do not get back with you right away I will always try my best after hours. Phone call or text is always preferred. But feel free to message on Facebook. I just might not get to your message right away. Thanks!

PRO stock racers!!! We have spend a ton of time the last few weeks creating new flywheel covers/funnels for the racers w...
03/31/2026

PRO stock racers!!! We have spend a ton of time the last few weeks creating new flywheel covers/funnels for the racers who are using a starter instead of a stock recoil. This not only protects your flywheel or and other components. But also helps guide your starters to the flywheel nut. For the Ski doo guys we have a fully machined replacement mag side cover. With the 3d printed funnel. We also have a 3d printed cover that you can bolt right up to the stock location as a replacement for the recoil. We have this for Ski Doo 800 triples and Thundercats. Starter nuts are available as well.

Sending out a chain case for a fast pro stock 1000 out of Canada!
03/30/2026

Sending out a chain case for a fast pro stock 1000 out of Canada!

3D Printed Polaris Matrix hood inserts. Because it’s only a matter of time before a rock blows through the fine strands ...
03/05/2026

3D Printed Polaris Matrix hood inserts. Because it’s only a matter of time before a rock blows through the fine strands of molded plastic right on the front of the hood. I took a pencil grinder and cut out the pocket to fit the insert properly. Will need to glue the insert underneath the hood. Any sort “ 5 minute Apoxy” will work. 40$ plus shipping. Beats buying a new hood. Feel free to call or text me with any questions !

Bad a$$ Billet P22 clutch covers to fit TRA style primary springs. This will allow you to gain higher engagement and ope...
03/04/2026

Bad a$$ Billet P22 clutch covers to fit TRA style primary springs. This will allow you to gain higher engagement and open up tuning capability’s with your Polaris boost and 9r. We actually seen rpm’s drop with the stiffer primary springs being installed. Indicating that we were NOT slipping the belt. Which can be easily overlooked. These come with a billet spacer to be placed in the spider before you install the spring. This is to hold the spring in place properly since the springs have a larger outer diameter. Also they look cool AF. 300$ plus shipping for the cover and the billet spacer. Feel free to message me for any other questions!!

Biles Motorsports is a family-owned performance shop dedicated to designing and manufacturing high-quality race car and ...
03/02/2026

Biles Motorsports is a family-owned performance shop dedicated to designing and manufacturing high-quality race car and snowmobile components. Built by racers, for racers, we focus on strength, precision, and real-world performance. From track to trail, our parts are engineered to handle extreme conditions and push machines to their limits. Here is a sneak peak of some products we have made and are in the works on.

Address

220 Franklin St
Princeton, IA
52768

Website

Alerts

Be the first to know and let us send you an email when Biles Motorsports / JB Specialties posts news and promotions. Your email address will not be used for any other purpose, and you can unsubscribe at any time.

Shortcuts

Share

Category