boysen reeds!

[holeshot buddy]

heres my bit nothing wrong with boyesen reeds they have been around for nearly thirty years
they were the hop up performance add on that was done to bikes like we ride now
they were used by the factorys and on works bikes been using for years never had issue
sure new carbon tech reeds are better but
i think v force are a bit sus
this is new tecnology on old bikes sure it works
but is it really legal
its a modern performance bolt ,on what does everyone think
also they are not available for all models
is this fair
speak your peace or forever hold your tounge

[Lozza]

In what way EXACTLY are V-Force 'sus'?
Only reason Boyensen would have ever been used on 'factory' and 'works' bikes was they paid .Plenty of things been around for 30yrs that fact doesn't make them better.Is it legal? Is it fair? Well considering anyone can buy and fit one in 5mins it is hardly unfair is it, in the same basket as YSS shockies. PVL ignitons & modern sticky tyres.If Tassinari don't list one get out your  calipers and measure?

[TonyB]

Mark, I popped your Boyesens in the post today, should be with you in 3 days or so. Good luck with them, i hope they work for you. They are slightly blackenned from the oil etc but they are basically new , probably 2 hours on them at the most. Just clean up the thread lock that got squeezed onto the reed mounting holes.

[mboddy]

Thanks Tony. If they turn up before the weekend I'll try them at the Sunday Dirt Track practice.

[squirtmoto]

I'm probably not qualified to make judgement seeing I've only owned about 12 "Big Bore" HONDA's
But I can tell you that they definately make a huge difference to the power curve over STD reeds
most you'll gain smoother power delivery, and more top-end as with STD reeds! They hit like a mule and sign-off early in the revs. So although they feel less powerful in fact they make the bike easier to ride thus
producing quicker lap times.
Do the test and check your times you'll be suprised!!!
Big "can't ride CR500's for shit" Bill.

[evo550]

Bill,
I'm with you, the boyseen reed's I have used where great, Increased bottom end and smoother out the transition between bottom end and mid range, mind you these where on early 90's 250 two stroke oh and a '81 dt 175!!
Don't own a bike with a reed cage now.

[Doc]

I hate to go against the Establishment but my experience with Boyesen's, as stated above, was only positive. They have lived up to all expectations in anything I've fitted them to. I still reckon agree, one of the best and simplest $ for $ power improvements you can make..you 'will' notice the difference..maybe they spread the power better or only have better response..maybe they don't make any extra HP but once fitted they certainly feel like they do

[firko]

I used Boysen reeds on my 500 Maico and noticed a distinct improvement off the bottom to the mid range. I'm not sure the bike was faster up top but it was sure smoother and got there a wee bit quicker. I've never tried V force reeds so can't really comment on them.

[LWC82PE]

ive fitted the dual stage boyesens to a few bikes and they do make a noticable difference and do what they are claimed to do. they might not be as good as other brands or reeds from the latest and greatest material but for our old bikes i think they are a worthwhile cheap modification and are what was used back then.

[Lozza]

Geez I needed a good laugh and reading all that I got one.
One would wonder why Boyesen made the 'Pro Series' if the normal ones were so good.

http://www.boyesen.com/cwo/OFFROAD#psreeds

[mboddy]

I haven't done any testing of reeds on dirt bikes but I have done a lot on Yamaha road bikes.

Original RDLC stainless steel; Good top end, bad hesitation just before power band.
RZ stainless steel in RDLC; Good top end, hestitation improved.
Late model RZ fibreglass; good all round.
Hi-Tech fibreglass; best low but reduced top end.
Boyesen dual stage without reed stops; good low and mid, but reduced top end.
Boyesen dual stage with reed stops bent to increase lift; good low and mid and improved top end.
Harpower thick fibreglass; great top end.
Carbon Tech High Tension carbon fibre; best top end. 

[GMC]

So Lozza, are you saying the pro series are no good too, or just the normal ones?

[firko]

My piston ported Maico goes well enough without reeds. I once built a reed barrel using Yamaha an MX250 cage and boysen reeds and it made bugger all difference. I buggered the originality on a rare square barrel for no noticable change. My mate had the same slack result with his Elsinore......Who needs 'em.

[mx250]

My piston ported Maico goes well enough without reeds. I once built a reed barrel using Yamaha an MX250 cage and boysen reeds and it made bugger all difference. I buggered the originality on a rare square barrel for no noticable change. My mate had the same slack result with his Elsinore......Who needs 'em.

......Who needs 'em.? All those 125 Elsie's four stroking away after been kicked in the guts 

If they didn't work I wouldn't think they would have been fitted to every two stroke produced in the last 30 years. Either they work to advantage or its the greatest con in history.

[Doc]

reeds should give a boost down low but above that it's all piston ports' domain..if your bike had plenty of grunt down low already I dobn't (short for doubt and don't think or an uncorrected typo) fitting a reed would be advantageous at all. I like 'em cause my RM's like 'em