cai Posted May 2, 2008 Report Share Posted May 2, 2008 (edited) Hey,Anyone know the the 'internal rim diameter' to the 20" (front of mod) 05 Echo rims?Or know how you measure it prcisely? Edited May 3, 2008 by cai Quote Link to comment Share on other sites More sharing options...
Greetings Posted May 2, 2008 Report Share Posted May 2, 2008 http://www.trials-forum.co.uk/forum/index....showtopic=35813 Quote Link to comment Share on other sites More sharing options...
Ladd Posted May 2, 2008 Report Share Posted May 2, 2008 Dude what hub you using ? Quote Link to comment Share on other sites More sharing options...
Matthew62 Posted May 3, 2008 Report Share Posted May 3, 2008 Hey,Anyone know the ERD to the 20" (front of mod) 05 Echo rims?Or know how you measure it prcisely?Not that i'm 100% on this but wouldn't ERD stand for External Rim Diameter...if so is it not that you want rather than the Internal one? Just a thought!? Quote Link to comment Share on other sites More sharing options...
cai Posted May 3, 2008 Author Report Share Posted May 3, 2008 http://www.trials-forum.co.uk/forum/index....showtopic=35813Cheers mate Not that i'm 100% on this but wouldn't ERD stand for External Rim Diameter...if so is it not that you want rather than the Internal one? Just a thought!?Yeah. good point.I'm using an RB tractor, and they've got a spoke calculator on their website for their hubs, and it askd for the internal rim diameter, and the correction (thickness of the rim wall). Quote Link to comment Share on other sites More sharing options...
Adam-Griffin Posted May 3, 2008 Report Share Posted May 3, 2008 Cheers mate Yeah. good point.I'm using an RB tractor, and they've got a spoke calculator on their website for their hubs, and it askd for the internal rim diameter, and the correction (thickness of the rim wall).Rears were 42mm and fronts were 37mm i do belive ? Quote Link to comment Share on other sites More sharing options...
muddyfox Posted May 3, 2008 Report Share Posted May 3, 2008 ERD is effective rim dia, measured from nipple seat to nipple seat Quote Link to comment Share on other sites More sharing options...
cai Posted May 3, 2008 Author Report Share Posted May 3, 2008 Rears were 42mm and fronts were 37mm i do belive ?No, as in how thick the metal is. Quote Link to comment Share on other sites More sharing options...
Adam-Griffin Posted May 3, 2008 Report Share Posted May 3, 2008 No, as in how thick the metal is.I knew that........ Quote Link to comment Share on other sites More sharing options...
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