To visit the Webmaster's contact page. Explanations of choices available in Products & Info Section Explanations of choices available in Products & Info Section MotorcycleAnchors(TM), hyper-secure ground anchors for locking up motorcycles, ATV's, Trailers, Boats, etc. Locks, Chains and Cables for sale at MotorcycleAnchor.com Products for sale - other security products (alarms, GPS locators, etc). Electronic and Electrical Products for sale (gauges, senders, etc). Products for sale - TShirts, Appearal, Gear... Products (other) - everything that doesn't fall into the other categories... Explanations of choices available in Shopping Cart Section View Shopping cart contents Explanations of choices available in FAQ Section FAQ - How to order our products & installation services. FAQ: Forms of payment, payment schedules, etc. FAQ: Shipping & Order Tracking Policies - Sales, Warrantee, Shipping, Price, Imporrt Taxes & VAT, etc. Installation Assistance documents, videos FAQ Entry: How to become an authorized reseller, installer or dealer Explainations of the selections in this section Contact Information, Tax ID's, Business Licenses, Phone/Fax/email Explanations of the choices in this section Motorcycle How To Files (diagnostics, repairs, lighting, leather, storage, rust, etc) Great Motorcycle Links HyperCoolShit Help files unique to specific brands/types of motorcycles

 

 

 

 

 

 

 

 

 

 

Katana Sprockets Page for 45-tooth Rear models:

This information is brought to you free of charge by the guys at MotorcycleAnchor.com -- at 
least check out our Motorcycle Anchor™ security solutions... maybe you know someone who needs one! Because having your bike stolen sucks.™

   This chart is to give you a quick way of looking up what percentage of change you can expect by altering the sprockets on your Katana (applies to some 98+ GSX750F [varies by market], and may apply to other years and models as well). If you have a 47-tooth rear sprocket as stock on your model (all 98+ GSX600F, some GSX750F), visit this webpage instead: GSX600F 47-Tooth Rear Tables
 
The formula's for calculating sprocket ratio math can be found in How To's: Understand Motorcycle Sprocket Math and Drive Ratios
 

Front Sprocket
Tooth Count
  Rear Sprocket
Tooth Count
  Sprocket Ratio   Percentage of
Change

13 44 3.385 11.36%
13 45 3.462 13.33%
13 46 3.538 15.22%
13 47 3.615 17.02%
13 48 3.692 18.75%
13 49 3.769 20.41%
13 50 3.846 22.00%
13 51 3.923 23.53%
13 52 4.000 25.00%
13 53 4.077 26.42%
13 54 4.154 27.78%
13 55 4.231 29.09%
13 56 4.308 30.36%

14 44 3.143 4.55%
14 45 3.214 6.67%
14 46 3.286 8.70%
14 47 3.357 10.64%
14 48 3.429 12.50%
14 49 3.500 14.29%
14 50 3.571 16.00%
14 51 3.643 17.65%
14 52 3.714 19.23%
14 53 3.786 20.75%
14 54 3.857 22.22%
14 55 3.929 23.64%
14 56 4.000 25.00%

15 44 2.933 - 2.27%
15  45  3.000 STOCK (0%) FOR THIS CHART
15 46 3.000 2.17%
15 47 3.067 4.26%
15 48 3.200 6.25%
15 49 3.267 8.16%
15 50 3.333 10.00%
15 51 3.400 11.76%
15 52 3.467 13.46%
15 53 3.533 15.09%
15 54 3.600 16.67%
15 55 3.667 18.18%
15 56 3.733 19.64%

16 44 2.750 - 9.09%
16 45 2.813 - 6.67%
16 46 2.875 - 4.35%
16 47 2.938 - 2.13%
The below are only for reference, as it makes no sense to use a 16 tooth sprocket to get a positive gear ratio change (use the stock 15 tooth front sprocket instead)...
16 48 3.000 0.000%
16 49 3.063 2.04%
16 50 3.125 4.00%
16 51 3.188 5.88%
16 52 3.250 7.69%
16 53 3.313 9.43%
16 54 3.375 11.11%
16 55 3.438 12.73%
16 56 3.500 14.29%

SPECIAL NOTES:

  • The Percentage change is the increase or decrease in available torque compared to stock. It is also the percentage that your RPM's will increase/decrease for any given steady speed (i.e. - if stock is 5000 RPM at 67 MPH, a 10% change will make the RPMs 5500 at 67 MPH). Additionally, if your bike reads the speed off the front sprocket (all 98+ Katana's), your speedo will be off by this amount as well. There are two products on the market to correct for this inaccuracy: the SpeedoHealer and the YellowBox.
     
  • By altering the sprocket ratios to a positive percentage change, you are trading some effective top-end HP for effective low-end torque. Torque primarily affects acceleration between 0 and about 65 mph, while effective HP affects speeds above 65 (especially top speed), and the ability to counteract wind resistance. Expect a 12% - 15% change to cut around 15 - 20 MPH off your top speed, because that HP you've traded is critical to overcoming the wind resistance at high speeds. Also expect seriously degraded fuel-mileage as a result of the trade-off.
     
  • By altering the sprocket ratios to a negative percentage change, you are trading some effective torque for increased effective HP, but this is likely to only alter your gas mileage at steady cruising speeds, not increase your top speed, as the actual total HP for the bike has not increased. The primary reason for going with a negative percentage change is to reduce the RPM's required to cruise at whatever standard cruising speed you ride at if you do a lot of long-haul touring or commuting (e.g. - getting you out of a zone of vibration if you happen to normally cruise right at the same RPM that the bike vibrates the most).
     
  • Large percentage (more than 8% or so) changes in either direction (from stock) can produce undesirable results.
      - Large positive percentage changes can cut your top speed significantly, reduce your effective traction under high throttle applications, and may cause the front end to become light or wheelie in response to the increase in torque.
      - Large negative percentage changes can actually decrease your gas mileage if you are not cruising steady (as you try to compensate for sluggish performance by giving it more gas during acceleration), and will reduce your rate of acceleration (including out of a dangerous situations).
     
  • The table reflects a wide range of possible combinations available (most that are likely to be used and then some), but other combinations are out there and this table is not all-inclusive.
     
  • Changes under 3% from your current ratio are not likely to be noticed by the rider.
     
  • Whenever feasible to obtain a specific ratio, avoid using a smaller than stock front sprocket. The smaller sprocket requires the links of the chain to turn a tighter radius, which increases friction and decreases the life expectancy of the chain (by decreasing the life-expectancy of the o-ring seals of the chain).

 
 

 
Copyright 2001-2005, all rights reserved. Material on this page may not be used or reused without express written permission from the copyright holder. For information on licensing, contact the webmaster. Please read the Disclaimer.
MotorcycleAnchor(TM) and MotorcycleAnchor.com is a manufacturer and reseller of MotorcycleAnchor brand security ground anchors, motorcycle security products, theft-deterrents and motorcycle accessories.
 
  Valid HTML 4.01! Page Last Updated on: 14 May 2005 Made on Mac Logo