Clutch questions?

1433 Views 14 Replies 0 Participants Last post by Guest, Apr 26, 2005

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Discussion Starter · Apr 25, 2005

I need to replace the clutch plates and basket on my 888, they are warn out and the basket is pretty warn from the plates. So I have been thinking about either going with the STM Evo light weight clutch assembly. It is the 48 tooth plates and light weight basket. Or just an aluminum basket and replacement plates? I have read that the change to the light basket makes a big difference in terms of performance. I would like to get some feed back on the available clutch options. Thanks

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Discussion Starter · #2 · Apr 25, 2005

Re: Clutch questions? (Rlbol)

getting a lightweight kit's a great way to let the motor spin up/down more easily than stock. i found the bike just behaves a bit better too. STM makes some great stuff but hot-damn is it expensive. i ran a lightweight kit from yoyodyneti.com on my s4 and liked it enough to order another for my new (used) 900ss. the new pressure plate's pretty snazzy looking too which doesn't hurt. le$$ than the stm and great stuff:

http://www.yoyodyneti.com/detail.aspx?ID=4246

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G

Discussion Starter · #3 · Apr 25, 2005

Re: Clutch questions? (s4strati)

I have 999R aluminum baskets and aluminum clutch packs for $400. Thats a pretty good $$$ to weight ratio.

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Discussion Starter · #4 · Apr 25, 2005

Re: Clutch questions? (section8superbike)

not bad!

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Discussion Starter · #5 · Apr 25, 2005

Re: Clutch questions? (s4strati)

how much for just the basket?

G

Discussion Starter · #6 · Apr 25, 2005

Re: Clutch questions? (Rlbol)

I would avoid the EVO diaphram and the 48T will commit you to thier plates, thou the STM 12T 6 spring is very nice but not for the price. We sell the Yoyodyne slipper for $1063 w/alum plates, $750 for the lightweight (non slipper) w/plates or Barnett alum basket w/alum plates for $400.

G

Discussion Starter · #7 · Apr 25, 2005

Re: Clutch questions? (Ducshop)

What's wrong with the STM EVO? (Honest question)

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Discussion Starter · #8 · Apr 25, 2005

Re: Clutch questions? (Tornado-rider)

Most of our customers that use them say they don't like the way they perform and want to go back to the 6 spring, especialy multi Duc owners who can compare back to back.

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Discussion Starter · #9 · Apr 25, 2005

Re: Clutch questions? (Ducshop)

Is there a big difference in the barnet aluminum basket and plates versus the yoyodyne light weight clutch kit? the difference in price seams to be fairly large?

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Discussion Starter · #10 · Apr 25, 2005

Re: Clutch questions? (Rlbol)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Rlbol »</TD></TR><TR><TD CLASS="quote">Is there a big difference in the barnet aluminum basket and plates versus the yoyodyne light weight clutch kit? the difference in price seams to be fairly large?</TD></TR></TABLE>

The yoyo kit comes with a hub (see pic) and all of the hardware (plus plates from the ducshop), whereas the barnett kit is just the basket and plates.

G

Discussion Starter · #11 · Apr 26, 2005

4

One of the things I really like about the yoyo lightweight kit (not sure about other kits) is how deep the springs sit in the hub. Pretty sweet. Check out some onbike pics...

but I think you would be happy with whichever option you decide to go with

Click for a more detailed look:

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G

Discussion Starter · #12 · Apr 26, 2005

i've got 20k on the 900m and have been tossing the light flywheel/clutch combo but wonder....with more engine braking does this increase the rear wheel hop downshifting on a curve?

G

Discussion Starter · #13 · Apr 26, 2005

Re: (slightly ducatic)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by slightly ducatic »</TD></TR><TR><TD CLASS="quote">i've got 20k on the 900m and have been tossing the light flywheel/clutch combo but wonder....with more engine braking does this increase the rear wheel hop downshifting on a curve?</TD></TR></TABLE>
exactly the opposite.
with less rotating mass in the motor, there is less "resistance" to changes in RPM's. lightweight parts in the engine = "poor man's slipper clutch".

while the engine will rev down more quickly when you let off the throttle, it WILL match RPM's when you let the clutch out while downshifting more quickly. this may sound confusing but it's the way it is.

G

Discussion Starter · #14 · Apr 26, 2005

Re: Clutch questions? (blueSS)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by blueSS »</TD></TR><TR><TD CLASS="quote">how much for just the basket?</TD></TR></TABLE>

$225

G

Discussion Starter · #15 · Apr 26, 2005

I can attest to the quality of the 999R basket and plates. After debating which setup to get for 6 months, I got the 999R basket and plates. The quality looks top notch and it's a lot lighter than the stock anchor.

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