Vintage Dirt Bike Q & A

HI
is there any difference between the cr250 1975 frame and 1976 frame.i know one is red and one is black and also the frame nos have different nos.i have a 1976 cr250 and the back has been changed for long travel shocks.will the back of a 1975 frame match the 1976 so i can put it back to std.or can some one tell me what side covers might fit as the std 1976 ones dont
cheers
jimg

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Jim Garvey
1x honda cr250m 1973 in bits
1x honda cr250 champion dirttracker
1x yamaha tt500 dirttracker 1976
1x yetman triumph dirttracker
1x tt500 longtack speedway bike
1 x 1940 350 ariel speedway bike
1 x bultaco astro grasstrack bike antig