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Just wondering how the orange sub5/five frame angles have changed over the years.
The current 5 is 67? head and 73? seat.
Give Orange a call they will help on your info
You will find it is steeper than that
Sub 5 wouldn't take anything over a 100mm fork.
I had an orange sub 5 years back and got some 100-120 Manitou Black forks on the frame. It was Ok at 100 but handled like a boat at 120mm by flopping into corners.
Frame was designed for 80mm forks originally because that was what was around in them days.
Don't know about head angles but I suspect the sub 5 had a slack head angle to suit shot travel forks, compared to a more modern "5" that can handle longer forks.
You can find figures for most years with web archive, eg. sub5 here:
[url= http://web.archive.org/web/20001120131500/www.orangebikes.co.uk/bikes/sub5.shtm ]http://web.archive.org/web/20001120131500/www.orangebikes.co.uk/bikes/sub5.shtm[/url]
Has been as high as 70 head angle
71 Degree head angle and 73 Degree seat angle
ah, web archive. neat!