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Post by Jwhood on Oct 1, 2016 21:58:34 GMT -5
Niz you get them mhr's on the "bay"?
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Post by PIG on Oct 1, 2016 22:01:58 GMT -5
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Post by niz76 on Oct 1, 2016 22:13:12 GMT -5
Scooter-system.fr lays it out pretty well here.
www.scooter-system.fr/news/594-malossi-cylindre-big-bore.htmlI can have either 77cc or 86cc depending on the crank used... "So after several copies cylinders MHR Team and MHR Team Cross in 6 or 7 transfers the Italian decides to pass the milestone of 70cm3 to tackle heavy, very heavy. He proposes a MHR Big Bore cylinder 77 and 86cm3 of an inner diameter of 50mm. Specifically, it is the biggest novelty of the equipment for months, a cylinder that completely revolutionizes its catalog. For benefits information, this hardened aluminum cylinder with 7 transfers are accompanied by a single segment protruding head piston, a 50mm-diameter segment and a thickness of 0.8mm cast KDN5 so that a breech decomposable high quality.
Malossi therefore provides two different displacements of competitors according to the stroke of the crankshaft . For further explanation, a crankshaft called "standard" a 39.2mm stroke and a 80mm rod ( Minarelli ) or 39.3mm and 85mm ( Piaggio ) provides a displacement of 77cc (due to diameter 50 the cylinder). For 44mm stroke crankshaft and a connecting rod length 85mm (Minarelli and Piaggio), the engine will 86cm3 obtained ... in one word: a monster!
Of course, the Big Bore cylinder is sold in two models: one for a race 39 and a second for the race 44 (the diagrams of time are changed). Suffice to say that this cylinder is able to compete with larger, one thinks of course the famous brand such as Cristofolini and 2Fast . A marvel signed Malossi sold around 350 euros, excellent quality / price." |
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Post by niz76 on Oct 1, 2016 22:14:41 GMT -5
Niz you get them mhr's on the "bay"? Yes. Yes I did.  |
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Post by Jwhood on Oct 1, 2016 22:18:58 GMT -5
Niz you get them mhr's on the "bay"? Yes. Yes I did. Damn I seen them but wasn't sure if it it would work,if you don't need both in the future I'll buy one from you if not its all good,man that roketa is gonna be ripping!!! Man I'm kicking myself in the ass now,will the stud holes line up or will the 90 cases need further work? |
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Post by niz76 on Oct 1, 2016 23:35:19 GMT -5
Yes. Yes I did. Damn I seen them but wasn't sure if it it would work,if you don't need both in the future I'll buy one from you if not its all good,man that roketa is gonna be ripping!!! Man I'm kicking myself in the ass now,will the stud holes line up or will the 90 cases need further work? Yes, the minarelli 49cc and 90cc have the exact same stud spacing- it's the other engines like the BWS/Aerox 100 that have the different stud spacing. Already had someone here contact me about the extra cylinder. If he doesn't get it I'll let u know! |
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Post by spaz12 on Oct 2, 2016 0:10:27 GMT -5
Am I understanding that the 90 is the same cylinder that I have, but when used with the bigger crank and spacer it becomes a 90? I know that mine is a 50mm bore.
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Post by niz76 on Oct 2, 2016 0:25:47 GMT -5
Am I understanding that the 90 is the same cylinder that I have, but when used with the bigger crank and spacer it becomes a 90? I know that mine is a 50mm bore. Yes. Yes! Well dang I didn't even realize- we're both running the same cylinder! Yes mine are 50mm bore also. 39.2/85=77cc, 44/85=86cc, 44/90=??) |
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Post by spaz12 on Oct 2, 2016 0:31:13 GMT -5
Am I understanding that the 90 is the same cylinder that I have, but when used with the bigger crank and spacer it becomes a 90? I know that mine is a 50mm bore. Yes. Yes! Well dang I didn't even realize- we're both running the same cylinder! Yes mine are 50mm bore also. 39.2/85=77cc, 44/85=86cc, 44/90=??) The Mina uses an 80mm rod for the 77 and the Piggy uses the 85mm rod. But yeah, okay sounds good to me. |
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Post by niz76 on Oct 2, 2016 0:35:08 GMT -5
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Post by niz76 on Oct 2, 2016 0:37:09 GMT -5
Yes. Yes! Well dang I didn't even realize- we're both running the same cylinder! Yes mine are 50mm bore also. 39.2/85=77cc, 44/85=86cc, 44/90=??) The Mina uses an 80mm rod for the 77 and the Piggy uses the 85mm rod. But yeah, okay sounds good to me. ikr? Can't seem to any good accurate info anywhere bc that just doesn't make sense! |
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Post by spaz12 on Oct 2, 2016 0:39:58 GMT -5
The Mina uses an 80mm rod for the 77 and the Piggy uses the 85mm rod. But yeah, okay sounds good to me. ikr? Can't seem to any good accurate info anywhere bc that just doesn't make sense! I know that you can use an 85mm rod on the Mina but then it needs the spacer. I wonder what it bumps it up to? An 80? |
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Post by PIG on Oct 2, 2016 0:44:53 GMT -5
Looks like a couple guys are going Crank shopping  |
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Post by PIG on Oct 2, 2016 0:45:33 GMT -5
But who's gonna go bigger  |
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Post by spaz12 on Oct 2, 2016 0:59:13 GMT -5
But who's gonna go bigger And you call me a bad influence. |
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