Cycle right - Bike Fit Myth Busting.wmv

Cycle Right Series focused on the cycling position. Addresses the common fit approaches like KOPS (Knee Over the Pedal Spindle), Handlebar Position for riding style.

Category:

Sports

Tags:

• Bike Fit
• Cycling Position
• KOPS
• Cycling fit

[AutodromoF1]

The knee behind the pedal spindle comes from a uci rule. I don't know if riders are able to move way back on their saddles to pass the uci inspection, if in their natural position puts their knee in a position in front of the pedal spindle.

[CrooksCycleRight]

@AutodromoF1 Thanks for the comment, I suspect you are thinking of the UCI rule on TT bike geometry where the tip of the saddle must be 30 mm behind the center of the BB, with the addition of the rule that the TT saddle must be level.

[L5man]

Are you willing to share how you determine COG for any randomly selected rider? Sounds good, would like to try it, but can't travel from New Mexico for a consultation.

Thanks.

[CrooksCycleRight]

@L5man Sorry for the delay - this is tricky but let me explain. CoG is as easy as balancing your weight on your wheels. The old way was to put your front wheel on the scales so that 45% of you and your mass are on the scales. There are may more sophisticated ways of doing this - I won't go into them all. However, unless you are in "race shape" or your excess mass is evenly distributed it may not be even that straightforward. The best at this is to find a Wobble-naught fit specialist to help you

[kimpado27]

you said the red laser line is the center gravity 3cm infront of the bottom bracket.. is this the center of gravity of the bike only or with the bike & the weight of the rider? pls enlighten me..

[yenrodtheoriginal]

I liked this video ALOT - like, ive been riding since I was 16 - I'm 39 now & still found that helpfull !!..definately subscribing .

[roadworxli]

this was just so painful too watch. generally, a myth is busted by facts. all this guy talks about are arbitrary and immeasurable ideas. so you use a laser. big deal. whats the foundation that you are basing your fit principles on? steve hogg does a much better job of describing what crooks cycle right is trying to say.

[verisimilitudino]

This is extremely vague and unrehersed. The scattered nature of the discussion and the lack of focus on any particular left me with a "When are you going to get to the point" feel. I feel the claims in the video are correct, but not really visually or auditorily explained. For example, you talk about KOPS, and how it isn't the most effective placement, and even went as far as to give a personal example of your legs being long, but then didn't say where you placed yourself to optimize effort.

[suckmecok]

This is an excellent video. Thanks so much.

[stopglobalswarming]

UCI might be useful for racing, but it has delayed the development of many innovations for non racing cyclists.

[AutodromoF1]

I looked up the rule and it says that for non-tt bikes the tip of the saddle must be 50 mm behind the bb. If the physical shape of your limbs forces you to move saddle forward beyond 50 mm, the uci will allow it, but they will check to make sure your knees fall behind the pedal spindle, but they will allow you to sit as far back as possible on the saddle when taking this measurement. Basically this rule is to prevent superman or obree styled bikes.