Professional Electric Bike Sizing, Fit and Adjustments Overview

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Professional Electric Bike Sizing, Fit and Adjustments Overview

I recently purchased a Specialized Turbo Levo FSR 6Fatty electric bike from Peloton Cycles in Fort Collins Colorado. One of their lead staff sat me down for a proper sizing and fit so that my first ride (and subsequent adventures) would be comfortable. This bike shop has all of the proper tools to do fitting such as a bike stand, measuring tape and angles. A full fit consists of multiple visits with a flexibility analysis. It’s important after an initial fit to come back because some problems can arise after some time in the saddle. I purchased Speedplay Syzr pedals because they offer some extra movement side to side (they are an adjustable float pedal) and my feet tend to angle outwards naturally, they felt the most comfortable. They may be good for people with knee issues because the connection is not based solely on spring tension and you get that flexibility. I was using this clipless system with the Specialized 2FO shoes. They looked more normal to me and offered a good flat base for walking around when unclipped. I asked Erik about swapping the handle bars and going with more of a riser (so my body position could be more upright) but Erik recommended riding with the stock hardware and seeing what causes issues first… I followed his advice and ended up sticking with the original bar. Erik explained that the longer bar and shorter stem is designed to slow down handling for aggressive trail riding. From this initial fit, it’s recommended to ride about 100 miles to see how things are holding up. There will be some cable stretch and slack that develops over time so shifters and mechanical brakes need to be checked on followup. Big thanks to Specialized and Peloton Cycles in Fort Collins Colorado.

Process:
– See where the foot rests, shoe placement (foot positioning using first and fifth metatarsal bones)
– Overall leg length and knee bend (20° to 30° degree angle, using the goniometer, make sure the seat post is all the way up if you’ve got a dropper post)
– Knee over spindle measurement (for saddle position, using a plumb bob for leverage ratio over the pedals)
– Controls: wrist angle, brake lever angle and reach and shifter placement (rotate bar and grips for proper arm angle and hand position, you don’t want bend or “brake” in the wrists)
– Depending on arm length, the bicycle stem could also be swapped out for longer or shorter reach (the range they had was 40 mm to 136 mm) Erik said there are 30 mm and 160 mm out there as well
– Saddle Position: forward and aft so the seat bones sit properly and comfortably

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