The Problem with Dog Bones

The best way to sell you new Bonz's is to explain the problems with the original Dog Bones.

I'm talking about the original CBR, RSR, & RS Dog Bones

The problem comes down to one simple fact...They got designed out of their functionality!

Here is an analogy for you: No matter how much you modify and tweek a VW Bug... It's never going to be a Porsche Carrera! Not that the Bug isn't an excellent vehicle for what it was intended.

This is important because when I started adapting the Cook Bros. BMX cranks to be used for multiple chain rings in the early 1980's ...THERE WAS NO SUCH THING AS A MT. BIKE FRONT DERAILLEUR! So like All people "on the bleeding edge", we modified what we could get. And it worked OK. Not great, but when that was all you could get...Who's complaining!

Honestly (ask the other guru's of the time) back in the beginning of Mt. Bikes, the Asian & European "big dogs" would walk by our booths and snicker "riding an expensive multi-geared bicycle in the dirt! How ridiculous!". We had to make due with what we could cob together, AND HAD AN F'EN LOT OF FUN DOING IT!

Then things started to change & change quickly. With the changes, I adapted the "dog bone" style CBR cranks as best I could. I also concurrently designed and manufactured the new E cranks to optimize multi-ring gearing. But there came a time and place that the "Dog Bone" style crank STOPPED being a functional design for a multi-ring  crank set! And I stopped making them. That is why I am currently only offering the Bonz as a single ring crank set...For now.

The other problems with the original Dog bones

As several of you noted and complained about on the vintage Mt. bike web forums ( and for good reason I might add) ...that the damn spyders were not removable...and most of the time did not even run true.

Well that has changed!

The ring mounting on new Bonz has a really trick tapered "Big Star" spline that not only mounts the ring "dead" true on to the right crank arm, but also provides a connection that can take the opposing forces of fixed gear bike! (See photo below.) Beyond that, the new Bonz have subtle changes that reduce potental stress risers, reduce the "Q" factor, and just make them MUCH sexier "naughty bits" of bike bling.

You probably have also noticed that the Cook Bros. Racing logo is on the inside of the arms now. I feel that the change in location of the logo makes for a more elegant product.

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