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1 - Pair Hex+ 20mm Pedal Spacers / Pedal Extenders
Regular Price: $49.95
Retail Regular Price: $49.95

Pedal Extenders are on backorder until approximately October 27th, 2020

Pedal Spacers (Pedal Extenders) for Look Keo (and related pedals ) that require a Hex Key Wrench for installation.

Left and right stainless steel 20 mm Hex+ Spacers (Pedal Extenders) are used with knees that track outside the pedal by adding length to the pedal axle.

These Pedal Spacers (Pedal Extenders) are intended for pedals that DO NOT have wrench flats (pedals that are attached to the crank arm with a 6 or 8mm Hex Key).  Not intended for use with Carbon Crank Arms.
1-Pair 20mm Hex+ Pedal Spacers / Pedal Extenders

Our Left and Right stainless steel Hex+ (20mm) Pedal Spacers (Pedal Extenders) are used with knees that track outside the pedal by adding length to the pedal axle. Designed to move the foot out and away from the crank arm to provide more foot clearance, they add to stance width for cyclists needing help with knees-out, excessive toes-out, extra wide feet, wide hips, or for those with discomfort on the outside of the knee.

These Pedal Spacers (Pedal Extenders) are intended for pedals that DO NOT have wrench flats (pedals are attached to the crank arm with a 6 or 8mm Hex Key). Designed with a thru-hole to allow a 6mm or 8mm Hex Key for attachment.


  • two (2) Pedal Spacers (Pedal Extenders) are sold as a pair (left and right)
  • two (2) 6 to 8mm Hex Adaptors
  • two (2) 1.5mm washers 
  • Maximum rider weight - 275 lbs / 125 kg.
  • 20mm Pedal Spacers (Pedal Extenders) are NOT recommended for use with carbon cranks.
  • Do not tighten or loosen with a ball-ended hex wrench
  • Always grease the hex+ 6-8mm adapter during installation
  • Not compatible with the following:  Look Keo Sprint and Look Easy Pedals
Tech Specs:
  • Weight: 37g per extender

What Our Customers are Saying

These spacers have been great! My biomechanics are much improved and my legs feel much fresher after rides than before I installed the spacers. Thank you very much for a well-designed and effective product!

I love these knee pain stopped immediately!
-Prokopios K. - Greece

Ordered them, installed them and BOOM, knee pain gone.

I can see and feel the extra power!

Your spacers and quality service have helped me a ton!  Two years ago I compacted (fractured) my left femur (fell hard on the left side going slowly through hard-to-see SLIMY concrete under 1” of water - sheesh!) 

No surgery, and now I toe out on the left quite a bit for an ergonomic stroke.  Your spacers and cleat shims have made ALL THE DIFFERENCE! Easy to install, last forever, sturdy, and customer service that can’t be beat.   Thanks for helping our bike tribe keep rolling!    I’ve got your product on road, mtn, cross, and tandem bikes! Still racing in the geezer 60-plus divisions thanks to you. 

Boulder, Colorado

I have been cycling for 12 years and just turned 40. In the past two years knee and foot pain have become increasingly apparent. I just wanted to thank you for making a proper product to resolve the issues i have have never had someone address properly. I must have read your blog post on pedal spacers a half dozen times before ordering a pair for my Ultegra pedals. Specifically the parts about stance with in snowboarding and running. The Hex + 20mm is exactly what I needed! I am so glad i read your post as i was ready to order the +4 mm pedals Shimano makes and this was 1/4 the price. 


I use your 20mm hex pedal spacers and have done for a few years on all my bikes with great success in alleviating knee pain!


-Rob L.

I started indoor biking for my daily cardio and loved the workout until after biking 5 days a week for about 3 weeks. I began getting bad knee pain preventing me from biking back to back days and it even got to the point of effecting my daily routines. Did some research and stumbled onto BikeFit, found that I was experiencing knee pain due to poor alignment with my pedals on my indoor bike. I ordered 20mm pedal spacers, received them quickly and installed them immediately and began biking again to see if the knee pain would improve. It did! My knee pain was gone completely even biking 7 days a week! Highly recommend giving the pedal spacers a try if you experience any pain from biking and not give up on it! They are high quality spacers and easy to install!
-Bryan L. - Shoreline, WA

Customer Reviews
# of Ratings: 1
1. on 3/26/2018, said:
Installed one right extender to the right pedal. Felt comfortable after a 30 km ride. Then added another extender to the left but felt unnatural. Today rode 74 km with the right extender only and felt great. Convinced that my body was not seated properly before and the right extender has now corrected it. Great product.
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