daviddwight Posted August 30, 2018 Share Posted August 30, 2018 Can anyone tell me how to work out the fulcrum effect re weight on bike rack with tbe overhang oc back end. Link to comment Share on other sites More sharing options...
Uncle Bulgaria Posted August 30, 2018 Share Posted August 30, 2018 I seem to recall that SVTech used to provide a calculator on their web site to calculate the impact on rear axle loading as a means of determining whether it was practical to uprate the chassis payload and stay withing the axle loading limits. Link to comment Share on other sites More sharing options...
colin Posted August 30, 2018 Share Posted August 30, 2018 If you want to work out the extra load on rear axle caused by bikes on an existing rack it's dead simple. take the weight of bikes. call that A measure from front axle to bikes. call that B. Take wheelbase. call that C AxB/C= extra load on rear axle. Link to comment Share on other sites More sharing options...
Keithl Posted August 30, 2018 Share Posted August 30, 2018 Uncle Bulgaria - 2018-08-30 4:36 PM I seem to recall that SVTech used to provide a calculator on their web site to calculate the impact on rear axle loading as a means of determining whether it was practical to uprate the chassis payload and stay withing the axle loading limits. http://lda2.svtech.co.uk/design?type=type1 Link to comment Share on other sites More sharing options...
daviddwight Posted August 30, 2018 Author Share Posted August 30, 2018 Thanks Guys will check it all tomorrow. Link to comment Share on other sites More sharing options...
Kennyd Posted August 31, 2018 Share Posted August 31, 2018 colin - 2018-08-30 5:09 PM If you want to work out the extra load on rear axle caused by bikes on an existing rack it's dead simple. take the weight of bikes. call that A measure from front axle to bikes. call that B. Take wheelbase. call that C AxB/C= extra load on rear axle. What happens when it’s a tag axle? Link to comment Share on other sites More sharing options...
Keithl Posted August 31, 2018 Share Posted August 31, 2018 Kennyd - 2018-08-31 6:44 AM colin - 2018-08-30 5:09 PM If you want to work out the extra load on rear axle caused by bikes on an existing rack it's dead simple. take the weight of bikes. call that A measure from front axle to bikes. call that B. Take wheelbase. call that C AxB/C= extra load on rear axle. What happens when it’s a tag axle? You use the SV Tech website with 'Vehicle Type 8' http://lda2.svtech.co.uk/design?type=type8 Link to comment Share on other sites More sharing options...
Derek Uzzell Posted August 31, 2018 Share Posted August 31, 2018 This description may help Link to comment Share on other sites More sharing options...
Brian Kirby Posted August 31, 2018 Share Posted August 31, 2018 Kennyd - 2018-08-31 6:44 AM colin - 2018-08-30 5:09 PM If you want to work out the extra load on rear axle caused by bikes on an existing rack it's dead simple. take the weight of bikes. call that A measure from front axle to bikes. call that B. Take wheelbase. call that C AxB/C= extra load on rear axle. What happens when it’s a tag axle? You do Colin's calculation, and then divide the rear axle result equally between the two axles. It may not be 100% for each axle, but it should be sufficiently accurate to tell you whether you may have a problem. Link to comment Share on other sites More sharing options...
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