GaryHyde Posted February 13, 2021 Report Share Posted February 13, 2021 Is there a way to identify what model/ cc a Bilty is from the frame number or engine number...? Help appreciated Regards Gary Link to comment Share on other sites More sharing options...
woody Posted February 13, 2021 Report Share Posted February 13, 2021 Yes, on earlier models the first two and later models the first three engine and frame numbers identify the respective model https://cemoto.tripod.com/bultaco.htm Link to comment Share on other sites More sharing options...
GaryHyde Posted February 13, 2021 Author Report Share Posted February 13, 2021 Thanks Woody.... Therefore frame number M-49 is.....Sherpa T250 1968>1971 Thanks for the heads up regards Gary Link to comment Share on other sites More sharing options...
feetupfun Posted February 13, 2021 Report Share Posted February 13, 2021 3 hours ago, GaryHyde said: Thanks Woody.... Therefore frame number M-49 is.....Sherpa T250 1968>1971 Thanks for the heads up regards Gary There were quite a few design changes made during the model 49 production. Frame design, rear hub design, brake pedal design, seat/sidecover design and engine outer casing design all changed between the first and the last Link to comment Share on other sites More sharing options...
GaryHyde Posted February 18, 2021 Author Report Share Posted February 18, 2021 Following on.... just purchased a 198 with matching numbers... However going further the frame has RR prefix and the engine has RM prefix what do these refer too? It is also road reg and I assume wrongly the RR is “Road Registered” But I guess that is totally b/s help appreciated as always Regards Gary Link to comment Share on other sites More sharing options...
lorenzo Posted February 18, 2021 Report Share Posted February 18, 2021 Gary - Frame # will be RB R = 250 B = "Bastidor" (frame) Engine # will be RM M = "Motor" Check frame again. HTH Link to comment Share on other sites More sharing options...
GaryHyde Posted February 18, 2021 Author Report Share Posted February 18, 2021 Lorenzo, thank you I have checked again it is RB ..! So R = 250 & M= motor Therefore 250cc engine Fantastic... Many thanks Gary Link to comment Share on other sites More sharing options...
lorenzo Posted February 18, 2021 Report Share Posted February 18, 2021 (edited) 1 hour ago, GaryHyde said: So R = 250 & M= motor Therefore 250cc engine A slight amendment to the info. I posted earlier :- "R" prefix actually denotes 238cc. capacity of model 198, a late version still identified as Sherpa "T250" (Earlier 250's that were actually 247cc had a "P" prefix). Hope this doesn't confuse the issue too much...... Edited February 18, 2021 by lorenzo 1 Link to comment Share on other sites More sharing options...
MJPH Posted August 6 Report Share Posted August 6 I have a Bultaco with frame # JB-19907895-A . only info I have. Any inffo on what the numbers mean would be appreciated Link to comment Share on other sites More sharing options...
feetupfun Posted August 6 Report Share Posted August 6 1 hour ago, MJPH said: I have a Bultaco with frame # JB-19907895-A . only info I have. Any inffo on what the numbers mean would be appreciated That means the frame is from a Bultaco model 199A. The 7895 in the number means that is the 7895th one made. The 199A is a Sherpa T 350 nominal capacity 326cc and made around 1979. Blue frame and blue plastics. The model before it is a 199. The model after it is a 199B. 1 Link to comment Share on other sites More sharing options...
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