borus Posted October 1, 2008 Report Share Posted October 1, 2008 hi does anyone have any experience with the madrid motorcycle alpha bikes or their 301cc kit? if so, what differences have you felt, (sure, more power) but what about traction etc. cheers Quote Link to comment Share on other sites More sharing options...
copemech Posted October 2, 2008 Report Share Posted October 2, 2008 I suppose this is for a 2T? Quote Link to comment Share on other sites More sharing options...
borus Posted October 2, 2008 Author Report Share Posted October 2, 2008 I suppose this is for a 2T? yep, 2t, there's a bit of a write up on todotrial cheers Quote Link to comment Share on other sites More sharing options...
borus Posted November 12, 2008 Author Report Share Posted November 12, 2008 well, well, well, my alfa 301 kit arrived today, stay tuned... cheers Quote Link to comment Share on other sites More sharing options...
copemech Posted November 13, 2008 Report Share Posted November 13, 2008 well, well, well, my alfa 301 kit arrived today, stay tuned...cheers Get someone to take pictures, of the crash! Quote Link to comment Share on other sites More sharing options...
marlintec Posted November 14, 2008 Report Share Posted November 14, 2008 Congrats, Borus... Are you aware that it's necessary to bore out the cases to fit the wider neck? Cheers, JM. Quote Link to comment Share on other sites More sharing options...
borus Posted November 14, 2008 Author Report Share Posted November 14, 2008 Congrats, Borus... Are you aware that it's necessary to bore out the cases to fit the wider neck? Cheers, JM. thanks jm, yes i was aware after deciphering the translation from aldolfo with my dealer, the kit is on, bike is up and running, after the run in we'll see how she goes, very very early feeling is it may have a broader power band cheers Quote Link to comment Share on other sites More sharing options...
borus Posted November 14, 2008 Author Report Share Posted November 14, 2008 i left the caby in it's 290 set up, fast throttle, 2.5 mm retarded, 45 pilot, 122 main, third clip in the keihin, it runs great, after a couple of hours on it riding my practice obstacles and sections the bike is what you would expect. more power, more low end grunt, maybe a wider power band, i thought third gear was very usable before, it certainly a fun gear now . obviously not run in yet but i'm happy to say it certainly accomplished what i was looking for. cheers Quote Link to comment Share on other sites More sharing options...
zippy Posted November 15, 2008 Report Share Posted November 15, 2008 What was the total cost? Quote Link to comment Share on other sites More sharing options...
borus Posted November 15, 2008 Author Report Share Posted November 15, 2008 What was the total cost? 758 eruos including insured delivery to the door. i guess is have a slightly used 290 cylinder and piston available, i'm wondering out loud if someone wants to upgrade their 250? mmmm:rolleyes: cheer Quote Link to comment Share on other sites More sharing options...
john.b Posted November 15, 2008 Report Share Posted November 15, 2008 Almost sure they are different bore and strokes on the 250 and 290. Quote Link to comment Share on other sites More sharing options...
borus Posted November 15, 2008 Author Report Share Posted November 15, 2008 Almost sure they are different bore and strokes on the 250 and 290. different bore, same stroke, simple swap out - (sherco's stoke numbers for the 250 is incorrect on their flyers.) cheers Quote Link to comment Share on other sites More sharing options...
john.b Posted November 15, 2008 Report Share Posted November 15, 2008 Cheers Borus, just done the maths! Every year they print the same old figures don't they. So to downsize from a 290 to a 250 is it simply a barrel, head and piston change then. Quote Link to comment Share on other sites More sharing options...
borus Posted November 15, 2008 Author Report Share Posted November 15, 2008 (edited) Cheers Borus, just done the maths! Every year they print the same old figures don't they.So to downsize from a 290 to a 250 is it simply a barrel, head and piston change then. just did some checking and the 250/290 heads and crankcase set are different. so, will need to do some research on the swap cheers Edited November 15, 2008 by borus Quote Link to comment Share on other sites More sharing options...
copemech Posted November 15, 2008 Report Share Posted November 15, 2008 So how much material must come out of the case? I would take a good 250 top if you find a trade! Quote Link to comment Share on other sites More sharing options...
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