a simple single pivot ive been dreaming up. steel / fillet brazed. 142mm rear travel, 150mm front travel. 210x55 x2 air shock.
the plan get a shock mount laser / water jet cut with 3 mounting positions to play around with out it feels. i will also build it around a pf30 bb, so i can try different bb heights and effective seat tube angles with an eccentric bb.
the main pivot would be handled by a 44mm headtube, and a 1 1/8 aluminum steer tube. not sure what i will run as a downtube yet, but likely a 38.1x.9 with some sort of gusset at the shock mount.
You may want to consider slightly more BB drop, unless you prefer to not get too low and/or you run long cranks. Reasons:
• Travel is a bit less than average, so the dynamic geometry won't be as low as if you had more travel. • Motion ratio curve is pretty flat, so you'll probably want to run less sag. This will also increase the dynamic height.
If you choose to increase the drop, you may considering lowering the pivot to reduce the pedaling anti-squat.
You may want to consider slightly more BB drop, unless you prefer to not get too low and/or you run long cranks. Reasons:
• Travel is a bit less than average, so the dynamic geometry won't be as low as if you had more travel. • Motion ratio curve is pretty flat, so you'll probably want to run less sag. This will also increase the dynamic height.
If you choose to increase the drop, you may considering lowering the pivot to reduce the pedaling anti-squat.
Always down for a lower bb, I had been looking at longer travel bikes for inspiration.
You suggesting lowering the pivot proportionately to the increased bb drop, or even lower?
Are you going to be running a headset as your main pivot bearing? Cause Chris King's new ltd colorway would look really awesome with some exposed fillets. Can't use a 44 headtube, but that's easy to fix.
Are you going to be running a headset as your main pivot bearing? Cause Chris King's new ltd colorway would look really awesome with some exposed fillets. Can't use a 44 headtube, but that's easy to fix. [P=http][/P]
I will be running two upper ZS headset cups as the main pivot bearings. As a general rule, all my bikes are a Chris King free zone.
Are you going to be running a headset as your main pivot bearing? Cause Chris King's new ltd colorway would look really awesome with some exposed fillets. Can't use a 44 headtube, but that's easy to fix. [P=http][/P]
I will be running two upper ZS headset cups as the main pivot bearings. As a general rule, all my bikes are a Chris King free zone.
Are you going to be running a headset as your main pivot bearing? Cause Chris King's new ltd colorway would look really awesome with some exposed fillets. Can't use a 44 headtube, but that's easy to fix. [P=http][/P]
I will be running two upper ZS headset cups as the main pivot bearings. As a general rule, all my bikes are a Chris King free zone.
You really need to incorporate kinematics into your design when creating a suspension linkage. You've already spent several hours on this design and you'll have to spend dozens more if it comes to fruition, so $25 is a small price to make the design rideable.
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