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Paul Aston's 210mm Do Everything Nicolai G1 - Sept. 19, 2020, 2:30 a.m.

Pedal strikes are one thing that it helps to have a higher BB and/or shorter cranks in the chunky terrain I ride.

But I prefer it more for safety going between rocks and ruts when riding with my pedals level (so crank length here is not a factor) especially on my local trails there are often deep rain ruts or rocks hidden in the grass at the side of the trails. If I rode bike park all the time where there are wide and groomed tracks I would lower it slightly.

Paul Aston's 210mm Do Everything Nicolai G1 - Sept. 19, 2020, 2:26 a.m.

If you have an Aurum HSP or Forbidden Druid you don't need an OChain as you should already have zero pedal kickback from the idler/high pivot design!

Paul Aston's 210mm Do Everything Nicolai G1 - Sept. 19, 2020, 2:24 a.m.

The book explains the basic method of using your height to calculate the bar width, but there is also a more in-depth calculation that takes in to account arm length, shoe sole depth and more.

Well worth a read!

Paul Aston's 210mm Do Everything Nicolai G1 - Sept. 19, 2020, 2:21 a.m.

This is a massive subject to get involved in, and a lot of it is above my knowledge level so I can only go on real-world testing experience, hopefully, I will have a data system soon to test things furthur.

But, the main difference between the Ochain and a hub with a lower engagement is that the Ochain is spring-loaded and rotates back to its resting position so there is always some slack available for the next bump (maybe on some fast repeated hits it won't have time to return?)

A hub with say 12º of engagement could give anything down to 0º of movement depending on the position of the pawls when the suspension starts to move.

I hope that makes sense!

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