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Ironman sprockets

Ironman Sprockets

Ironman Sprockets logo

No Longer Available

Ironman Sprockets are the only sprockets with a ONE YEAR WEAR GUARANTEE!  It does not matter if your Ironman Sprockets are used for racing supercross on your YZ 450F, for trail riding on your CRF 250X, for super moto on your CRF 450R or for outdoor motocross on your YZ 250F; no matter what year, make and model, 2-stroke or 4-stroke, if you wear your Ironman sprockets out in less than one year you will receive replacements absolutely free!  No other manufacturer dares to offer such a warrantee, because no other sprocket performs or lasts like an Ironman sprocket. 

Absolutely the toughest racing sprockets made; these high-tech sprockets are designed to be nearly as light as aluminum but 5X stronger.  The high tech design optimizes stress distribution and allows the sprocket to be manufactured using a minimal amount of high strength steel.  As a result the Ironman sprockets are very light weight but incredibly strong and wear resistant.  

 

Ironman Sprockets on Honda

Click the image to the left to view a weight comparison between a JT Sprockets steel sprocket, an Ironman sprocket and a Sunstar aluminum sprocket.  

Click on the picture to the right to see Ironman Sprockets installed on a YZ250 (foreground) and YZ426 (background).  Ironman Sprockets on Yamaha

  • Designed using 3D modeling software to optimize stress distribution and weight savings
  • Manufactured on a $750,000 CNC laser cutting machine that is accurate within .001" 
  • Heat treated to the hardness of a Snap-On brand wrench
  • Nickel plated for corrosion resistance and additional wear protection
  • Front sprockets are made of shock-resistant die steel, much stronger than "case hardened" steel
  • Front AND rear sprockets are covered by a 1 year wear guarantee 
  • $99.99 rear (click here to order rear now)
  • $34.95 front (click here to order front now)
  • Lowest price guarantee - Find Ironman sprockets for a lower price any where else online and we will match that price plus ship them free!
  • Typically ships within 24 hours of your order
 
 

Final Ratio

 

(Courtesy of the Ironman Sprockets web site)

12 13 14 15 16 17
40 3.33 3.08 2.86 2.67 2.50 2.35
41 3.42 3.15 2.93 2.73 2.56 2.41
42 3.50 3.23 3.00 2.8 2.63 2.47
43 3.58 3.31 3.07 2.87 2.69 2.53
44 3.67 3.38 3.14 2.93 2.75 2.59
45 3.75 3.46 3.21 3.00 2.81 2.65
46 3.83 3.54 3.29 3.07 2.88 2.71
47 3.92 3.62 3.36 3.13 2.94 2.76
48 4.00 3.69 3.43 3.20 3.00 2.82
49 4.08 3.77 3.50 3.27 3.06 2.88
50 4.17 3.85 3.57 3.33 3.13 2.94
51 4.25 3.92 3.64 3.40 3.19 3.00
52 4.33 4.00 3.71 3.47 3.25 3.06
53 4.42 4.08 3.79 3.53 3.31 3.12

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