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Kuryakyn Contour ISO Throttle Boss
  • Kuryakyn Contour ISO Throttle Boss - Black
  • Kuryakyn Contour ISO Throttle Boss - Black
  • Kuryakyn Contour ISO Throttle Boss - Chrome
  • Kuryakyn Contour ISO Throttle Boss - Chrome
  • Kuryakyn Contour ISO Throttle Boss - Chrome

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Video Review

Kuryakyn Contour ISO Throttle Boss Videos

Kuryakyn Contoured ISO Throttle Boss

Some things just get better over time, like the Contoured ISO-Throttle Boss for use with Kuryakyn ISO Grips. Updated styling combined with a larger surface area and pad provide even more comfort than the original design while still easing hand and forearm fatigue. The addition of a throttle boss can make the difference between a quick trip and a cross country adventure. They are simple to install and are easily adjustable to suit your needs.


  • Available in black or chrome finish
  • Right and left-hand side available
  • Sold each


Fitment Notes & Exceptions

This is a universal fit part; it may or may not fit without modification.

Product Style RevZilla Item # Manufacturer Product # Availability
Left / Chrome 954538 6309/ In Stock: Ships within 24 hours
Right / Chrome 954537 6299/ In Stock: Ships within 24 hours
Right / Black 954539 6318/ In Stock: Ships within 24 hours


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Doesn't fit or just not happy with it? You can return any new, unused and unaltered item within 30 business days of delivery receipt of your item. We will issue a full refund to your original payment method.

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Kuryakyn Contour ISO Throttle Boss 5 5 2 2
Nice add on to the grip end. The throttle boss helps to aleviate hand fatigue on long rides typically associated with taller bars and the vibrations that come with them. Good product. I recommend at least trying it out for the minimal cost. July 20, 2015
nice clean look The grips were easy to install and are a lot more comfortable than the stock ones. March 2, 2015
1-2 of 2
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Have a functionality, fit, or otherwise product-specific question about the Kuryakyn Contour ISO Throttle Boss? Ask it here! If you have a customer service or shipping question, please direct it to our Customer Service department.

Kuryakyn Contour ISO Throttle Boss
Already Asked: 1 Question, 4 Answers
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RevZilla Store asked: Why did you choose this?
Joseph B: I just purchased new Premium Kuryakyn grips for my new Harley. To balance out the bike I ordered the left throttle boss since the premium grips only come with the right throttle boss. Jun 8, 2015
David W: I chose this to help reduce the tension in my throttle hand. I can just lay my hand on the throttle boss and it helps remove the need to twist as much to hold the speed. May 8, 2015
Mickey B: Had the Crampbuster for many months. Loved it - however, I lost it on a ride one day. Since I have the ISO grips, I got one of these for each grip (left and right). No worries about falling off now. Easy to adjust and does a great job of relieving the minor cramping that occurs in my hands during longer rides. Plus, they match the ISO grips perfectly. Highly recommed! Mar 25, 2015
John B: I do a lot of 150 mile + rides and was looking for somethign to take some stress off my hands. Already bought the ISO grips through RevZilla so I thought this was worth adding on. Jun 10, 2014