Phone call = instant reply :wink2: From now on, as Tom said in the other thread, please call us with direct questions. This thread is about our Blog and it's updates, so we'll not answer any email-type questions in this thread, sorry.
Not quite, because one inch is 25.4mm... therefore half is 12.7mm... and it doesn't actually come back that far because of the angle of the chain (as explained above), it's more like 12mm. 355mm chainstays come about on Atomz bikes because they have a stock-style tensioner, so they can have whatever chainstay length they want (within reason ).
... but usually around one set of chain links which is 1/2" (12.7mm). It's not exactly half a set of links because of the angle that the chain makes between the (larger) front and (smaller) rear sprockets. Hence 350 stays on the mod frames with 'short' chainstays.
Makes perfect sense... we know the chainstay length for the gear ratio that will be on the bike, measure from the BB to the dropout (well, where the rear axle will be), then hold the tape in the same place and move it out to the front axle - easy.
A certain company makes 23T screw on sprockets now... Which, when combined with an 18T freewheel on the rear hub makes an excellent ratio for 24"... :wink2: For reference, as Tom said in the other thread, please call us with direct questions. This thread is about our Blog and it's updates