XL Performance Rear Sponsons

XL Performance Rear Sponsons


  • Description
  • Additional information
  • Reviews (1)


ProWatercraft introduces the new Hybrid Flex Composite (HFC) that is designed to flex supporting your riding style. HFC blows all the other rigid products out of the water with many improved features. These sponsons hold up better than the industry standard and limits bouncing, reduces subbing, even MORE stability, and better grip.

Our “Performance XL Rear Sponson” kit is designed to improve the riders confidence when riding their Stand up watercraft. The design was created by Chris Hagest. He says: These Performance XL Rear Sponsons offer improved turning grip, better stability in a straight line and when leaning over in a turn. The difference between us and the other options on the market is grip and high speed turning the ski is easier to lean which makes the ride smoother through the complete turn. The HFC sponson bolts to the top of the bond flange and it comes with a hardware kit.

This product does not include a cut out for the 550 HIN tags. You can modify the parts easily but this will void the warranty. Otherwise, you can mount them in front of the tags with no performance loss.

Additional information

Weight 7 lbs
Dimensions 24 × 5 × 3 in


1 review for XL Performance Rear Sponsons

  1. 5 out of 5

    Must have if you’re a vintage racer. These will completely lock the rear end of the Skis down in the turns if you lay the ski over causing you to hook up instead of slide out. Also in rough water they made the ski stand very up right and not wanting to roll like the 550s do at high speeds. Definitely recommend these to any 550 rider/racer

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