Jump to content

motodaz

Members
  • Posts

    28
  • Joined

  • Last visited

Posts posted by motodaz
 
 
  1. All good in theory, yet has Greeves sold a bike? Seems they claimed a lighter motor, as with the others. Personally, I am not sure where exactly one will start trimming the Sherco motor without turning it into a time bomb similar to a gasser. Oh yes, one can trim everything untill it breaks!

    One only needs three gears really, 1-2 in the sections, and 3 for the trail! I heard Montesa did that at one time! Just how light do you really want?

    The bikes are soo speccalized right now that noone else wants them, not even a farmer! ;)

    I imagine Greeves is waiting to ride out the 'economic downturn' before placing their bikes on sale, it wouldn't be a good time to start selling an expensive specialized motorcycle, especially as you say, one that is of practical use to very few people.

    As for three gears I imagine that would be fine for a high capacity machine with ample pulling power, but I've never been tempted to remove a cog from my 125 :)

  2. Your probably right that greeves has made there own engine, but it is fairly obvious which engine they have copied.

    Yes your also right that all modern two strokes have a very similar design layout and there is little difference between them but it looks as though the greeves copied the Sherco engine exactly even down to the bolt hole positions on the casing which for instance you could easily change the position of to make the engine look visually different.

    I guess it is the same so they can use a lot of the Sherco components in the engine to reduce the set-up and tooling costs of producing there own, they may have even struck a deal with xispa to use there parts.

    Absolutely, it's quite possible that a couple of companies have shared designs for reduced cost/compatibility like car manufacturers do, also it may make it easier for aftermarket component makers, as one design like that of a cover can be used on a series of machines.

  3. you are joking?

    I'm saying that I think Greeves have made their own engine (or atleast a lot of it) and they deserve credit for it, of course the casing looks very similar, the internals are likely to be the same as (just about) every two stroke as they house the same basic components. In order to get the lightest possible design it's bound to look similar, don't all pedal bicycles looks the similar? and didn't Sherco use a remarkably similar design to GasGas when they started out? it's not necessarily copying but finding the same solution to a design requirement.

    As for Greeves having a ''blank" top end I assume it's due to their different design requirements, they don't have the same tooling and resources to make a more complex design so theirs is simple to make it manufacturable.

  4. Just glasses for you if you think the greeves looks different to a sherco. wheres the photo?

    Exhibit A: http://www.greevesmotorsport.co.uk/bikes/g...otorsport_3.jpg

    ..and for reference: http://www.shercousa.com/2007_Sherco_Trials_files/09b_p.jpg

    Although the cases are almost identical (hard to make them look unique), the cylinder heads/covers/cooling systems and cylinder inlets are clearly different, no lenses necessary.. ;)

  5. Why does it look identicle on the outside then?

    Well it is a two stroke, and aside from Beta's they're all the same basic layout, and in a minimalist design such as in trials it's going to be hard to have something look noticeably different, However I'm certain it's Greeves own design, things like bolt positions (i.e. on the cylinder heads Greeves have theirs on the outer-edge whereas Sherco have them between the waterways), materials used (Metal instead of plastic on flywheel cover)and other things that take a keen eye to notice... (where's a smiley with dorky glasses when you need one?)

  6. For Sherco to make such changes without proper development would be unthinkable. I still think the whole Greeves thing was just a front for development! How else does Greeves majically appear up with Sherco motors. How many they sold at that price? Anyone seen one?

    Boggles the mind! ;)

    I'm pretty sure Greeves have designed their own motor, I happen to know sherco engines inside-out..

    unfortunately! :)

  7. if my memory is correct dougie started to ride for montesa in 2000 so the last dougie replica beta would have been a techno 1999 spec, 2002/03 beta would be a rev 3 and dougie was riding monts then so it might be a 315 spec mont,

    Ditto this, I had a '99 techno which I believe was the last of the Lampkin rep' Beta's, good luck with this 'mutant' :P

  8. I had a Vee Rubber tyre on the back of my gasgas a couple of years ago, It was very soft, and gave plenty of grip, allthough it did seem to wear a bit quickly, ofcourse that's the tradeoff for the low price, in my opinion they're decent value for money, but I'm not sure I'd take one to the scott, although mine got a fair bit of use.

  9. The duke dvd of both the indoor and out door 2008 are with the same coverage, but no jack.

    The guy doing the commentary is a muppet every thing is a "fiasco" he doesn't even say the right scores when they get time penalties, apalling.Never ridden a trial bike for sure.

    What iu can't understand is they sponsored Colley for so long how much better would he be?

    Sooo true ;) I think jack's a good commentator, but it makes the trial less interesting when he tells you score at the begining, it must make it really dull for people who are new to the sport/havn't heard the scores before hand.

    I've got my fingers crossed for live courage, I just hope Rage doesn't change the cc of his bike before every trial like last year :D

  10. I see what you mean but thats a big heavy thing applying lots of weight to make them bend. I wonder whether they could be made with flexible enough spokes that are still durable enough for trials use.

    Its kind of beside the point though. A trials tyre will distort not just along the circumfrence of the tyre but also accross the width of the tyre.

    I havnt explained very well but imagine riding over a fist sized rock. the soft tyre will kind of wrap around it along both its length and width.

    I think most of us can un-encrypt that explanation. :D

    It would seem that the flexibility is due to those flexible spokes; from my understanding they could be arranged horizontally as well as along the circumference, to create that 'wrap around' affect. of course I

  11. Hi, I don't think that any bikes are 'better for Small riders or tall riders ', as it can depend largely on the handlebars i.e.: you can get handlebars that 'reach' higher up than others or 'bars with very little bend that suit shorter people, this also applies with the width of the 'bars and the angle at which they are set. As for choosing a 125, I think that's a wise choice as I'm 11 stone and my 04 Sherco 125 pulls me up pretty much anything but needs a tad more encouragement than the 250 GasGas I once had... Anyway, hope this makes some sense, MotoDaz

    PS: If you are particularly concerned about the size of a bike it might be best to look for specifications of the bike's in questions e.g. Handlebar height, wheelbase etc. You should be able to find this on the manufacturers

 
×
  • Create New...