- I don’t make bikes, I make weapons systems….
Always interesting ideas nicely executed from PVD, just spoilt by the arrogance and polarised opinion.
In fairness he has arrived at the geometry by careful evolution over many frames. I’ve also ended up with short rear : longish front 29er geo over the last 9 years of mtb frame builds – if they rode “a bit shit” I wouldn’t have carried on building them 🙂Posted 2 months agochakapingSubscriber
I’ve also ended up with short rear : longish front 29er geo over the last 9 years of mtb frame builds – if they rode “a bit shit” I wouldn’t have carried on building them
What numbers have you ended up at, may I ask?
I found 460mm reach and 430mm chainstays was really good, but lengthening the chainstays to 450mm or a bit more was even better for me.
One bike had 460mm reach and about 420mm rear, and I found it quite alarming trying to ride it fast.Posted 2 months ago
Chapaking – not sure of exact reach number as the only drawings at home are for cutting tubes / setting up the jig. I’d need to check cad but I think somewhere around 475-480 reach (25% sagged 120 fork), 410 chainstays, 72 effective SA and 68 ish HA. That is my personal limit for reach and slackness. Designed for climbing, twisty stuff and steep downhill techy stuff. Not flat out wide open blasting.
The important thing is a geo and bike for a specific rider and purpose. P*Ds seat tube diatribe is the opposite viewpoint. It must be a specific diameter. It must be a specific drop. It must be a specific angle. All for cast in stone xyz reasons. Why? I’m a much lighter rider, riding different terrain, on a different continent, constant mud and grit, xc background so happy with just 25-50mm dropper. So the answer to the equation is different (only he never looks that far).Posted 2 months agoandyrmMember
I really like PVD – he’s done some awesome stuff, and I actually made use of one of his designs on my old bike (the Scott headset adapter cups).
He’s a maverick like Chris Porter, who pushes the boundaries that we need pushing to find the limits, then with a bit of Yank brashness (which mostly seems to upset typically self effacing Brits more than anyone), he can appear arrogant. My view is that arrogance is only confidence you can’t back up with ability, and he’s got ability in spades. We need the bug personalities like PVD, CP, Musk etc to not GAF and do this year’s “outrageous”, which in turn settles into 2 years’ time’s “progressive”……Posted 2 months agoblacklabbikesMember
here’s my effort:
all fun and games. We’re all wrong about geometry as soon as a rider with different CoG and physical dimensions gets on a bike.Posted 2 months agosquirrelkingMember
Well I found it interesting enough, I didn’t find it too hard to follow despite having no real bike building knowledge.
Oddly (or not) enough I was also going to compare to CP before I was beaten to it. Both have their theories and both have been extremely helpful in that regard, the Mojo spring calc was perfect for me back in the day and PvDs oil table of truth hasn’t let me down.Posted 2 months agohols2Member
Not sure I really want my hands to sit behind the steerer….
Puts you into the Dangerzone, apparently.Posted 2 months ago
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