430mm a-t-c rigid forks.....
- Thread starter konatime
- Start date
suburbanreuben
Old School Grand Master
Yup, They'll be perfect! 
konatime":1iv3ultq said:
Just did a quick search & an 80mm Rock Shox Recon has an a2c length of 451mm ( http://www.sram.com/_media/techdocs/08_RockShox_Axle2Crown.pdf ). A 430mm a2c fork on an 80mm suspension corrected frame sounds pretty close.
I'm running 420mm a2c forks on my Avanti K.I.S.S. 26 designed for a 100mm travel fork & it's great (50mm shorter than the suspension fork it's designed for). Responsive but not twitchy. It's got a 70.3 degree head angle stock so I guess with the rigid fork i've got about a 71.5. You wouldn't want to go a lot steeper but much more laid back & rigid bikes climb like pigs.
suburbanreuben
Old School Grand Master
Weren't Z2s 65mm travel with 10mm of "negative travel" built in?
Mine were, and they had an a-c of 435mm, so 410-415mm rigid would have been perfect, assuming , as they do, 25% sag.
80mm forks with a-c of 450mm ish, have a 25%sag length of 425-430mm.
Older style sus forks, and some frames, were playing the numbers game, assuming that if you had a bigger dick, you'ld want more travel, whether actual or claimed, regardless of the frames's suitability.
Frames properly suited to 80mm travel will generally work best with 425 ish mm.
Mine were, and they had an a-c of 435mm, so 410-415mm rigid would have been perfect, assuming , as they do, 25% sag.
80mm forks with a-c of 450mm ish, have a 25%sag length of 425-430mm.
Older style sus forks, and some frames, were playing the numbers game, assuming that if you had a bigger dick, you'ld want more travel, whether actual or claimed, regardless of the frames's suitability.
Frames properly suited to 80mm travel will generally work best with 425 ish mm.
