EREM Posted February 19, 2019 Report Share Posted February 19, 2019 2 hours ago, trialsrfun said: If you look at the two lines on the left picture posted by Carl you can see that the space at the lower end is greater than at the top this is where the 20mm comes from. Therefore I understand that 1.5 yokes "close" the steering and shorten the distance between axles. My tiger cub with montesa forks (parallel yokes, centred axle) feels quite heavy and does not turn very well. From the information that I got, it seems that a Tiger cub with original frame goes better with 1.5 yokes. According to Carl explanation, I guess a more closed steering makes it lighter in front and facilitates turning... Quote Link to comment Share on other sites More sharing options...
carl ekblom Posted February 20, 2019 Report Share Posted February 20, 2019 1,5 degree rake at the yokes increase wheelbase approx 20mm and decrease trail the same amount. Less trail is generally considered to make steering quicker but more unstable when straight running. Old british bikes often had a 27 degree steering angle. This man modify an OIF BSA frame to 21 degree. 1 Quote Link to comment Share on other sites More sharing options...
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