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Post by ez4u2say1 on Jun 7, 2011 13:21:34 GMT -5
So I have the 08' model and my frame looks like it has the place too put the monoshock (I found it some where online to purchace, but I cant remember where) can I just bolt it right up or how does it go?  I didnt order the shock yet my dual rear one are bumpy and the bushing are hella costly.  25 dollars per bushing |
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Post by trailheadmike on Jun 7, 2011 14:27:24 GMT -5
Check closely because on some boards they've said that the frame is completely redesigned on the mono-shock model. I'll see if I can find it.
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Post by trailheadmike on Jun 7, 2011 14:36:05 GMT -5
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Post by ez4u2say1 on Jun 7, 2011 17:01:40 GMT -5
Yes this iswhat i looked at as well it looks like the hole are on mine but im not sure how it pivots the way i think it looks backwards like the shock would extend instead of compress or am i thinking wrong
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Post by trailheadmike on Jun 9, 2011 19:12:26 GMT -5
Here is what I was thinking of -- it's someone's entry on motor-scooter-guide.com from 2009 when the mono was introduced. I can't vouch for it - I just remember reading it:
Oct 22, 2009
The current version is an almost complete re-design. New all-aluminum rear end has a mono gas/oil/spring shock that is rider adjustable with the turn of a knob; new front fork is stronger, lighter and increases hydrolic travel by 3 inches; brakes now are twin calaper and the discs are 3cm larger; the valves are now self-adjusting and idle adjustment is done with your fingers via remote knob. With many other upgrades the only thing that remains the same is the "Burgmanesque" plastic. It remains however, a cheap Chinese scooter in many of the details. Be prepaired to fix lots of problems common to most Chinese scooters; even the best ones like this.
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Post by Jeff on Jun 10, 2011 10:34:29 GMT -5
I've come across that review before too, and of course it is wrong regarding the self-adjusting valves but the rest of it seems accurate enough.
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Post by 260orbust on Jun 12, 2011 1:14:08 GMT -5
Self adjusting valves? Well shoot what was I doing adjusting those valves??? I really can just twist and go! LOL
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Post by ez4u2say1 on Jun 12, 2011 16:36:38 GMT -5
Those don't have true self adjusting valves I hope that was a joke.?  |
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Post by WarrenS on Jun 13, 2011 9:27:08 GMT -5
Maybe they meant self adjusting cam chain tensioner.
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Post by dang on Oct 24, 2012 11:18:51 GMT -5
I just wanted to ask about monoshocks as I am struggling to find information about people who have converted. Is it as simple as getting the correct shock and bracket and putting it on? I was just wondering in terms of stress in the frame, because when turning corners you will not have even stress due to there only being one shock??
Another question I have, although slightly off topic, is what would the effect be of having two exhausts on a scooter. I was thinking about rewelding the exhaust manifold and wondered what effects it would have. More air flow, does that mean you can run a leaner engine? or richer?
Thanks
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Post by prodigit on Nov 2, 2012 0:21:06 GMT -5
The 2011 BMS260's or newer, have an adjustable rear suspension.
You won't be able to use a monoshock on your bike like this, because the older models (2008 models) don't have this frame mounts; plus they don't have the accomodation to install the adjustable part of the adjustable suspension system; which means that even if you could install a monoshock, you won't be able to adjust it easily, unless you can somehow install some kind of adjustment screw near to the shock (meaning you'd have to stick your hand underneath the bike, between the rear wheel, and back seat, and find some way to adjust the shock itself...
Concerning the valves, I'll write what I learned from looking up stuff online; I have no experience with it however...
The Chinese call these valves 'self adjusting' as they are hydraulic steered valves, instead of mechanically steered.
Technically they won't need a valve adjustment, but some people are still doing a checkup every 30k miles.
From what I've read, they're much like hydraulic brakes, that automatically adjust to the right valve clearance (because the system is hydraulic). The clearance needs to be checked like every 30-50k miles instead of every 4-8k miles; however chances are you'll never need to adjust them.
Track records of a similar jap bike has shown that even after 100+k miles valve clearance is still well within tolerance, and stay within tolerance even with valve deposits removed. However I don't know if the Chinese system is as good as the jap system (most likely not, still it is best to check your valves every like ~35k miles (35, 70, and 100k miles, if the bike ever gets that many miles on it).
Concerning exhaust, most of these 260cc bikes, are considered the elite of the Chinese bikes, especially if they have an EFI system installed.
They're already optimized.
An extra exhaust will not do anything, but lower your performance (increase noise levels, increase back pressure on the valves, increase weight and cost).
A secondary exhaust usually makes sense on a twin cylinder V-engine, one exhaust pipe per cylinder, to make the bike sound bigger. However, some research has pointed out, that a slightly larger single exhaust pipe will perform much better than 2 separate exhaust pipes (not to mention, 2 pipes cost more as well).
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I didnt order the shock yet my dual rear one are bumpy and the bushing are hella costly. 
25 dollars per bushing
