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CVO Technical => Drive Train => Topic started by: naitram on July 09, 2007, 11:24:50 AM
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Isolated Drive System Sprocket Kit
Introduced on the '08 Touring models, the Isolated Drive System improves rider comfort and ride quality by dampening the mechanical noise and vibration caused by the engine's torque pulses. The rubber compensation elements in the sprocket act like a cushion, absorbing the power pulses from the engine. With the IDS installed, the motorcycle feels more refined, and is quieter while accelerating, shifting and cruising. Kit includes sprocket, compensator bowl, and installation hardware.
Fits '07 Touring (except Japanese) models equipped with Original Equipment and Harley-Davidson® accessory wheels. Will not fit with 80-Spoke Laced Wheel P/N 42954-04, Polished Spun Aluminum Disc Wheel P/N 43760-03 or Slotted Six Spoke Wheel P/N 43932-02 (chrome) or 43933-02 (black).
MSRP US $305.00
(http://a1276.g.akamai.net/7/1276/734/36b6fce0ed3b67/resource.harley-davidson.com/media/images/productphotos/PNA/40287_07_M_220bd.jpg)
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I saw that as well. I am going to wait for someone with acute OCD to give us a review
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Hoist,
While your putting together that bike you might as well add this and give us all a ride report on it :) I mean its only 305 dollars more, nothing more than a 2 hour massage for Binx and a facial. hehehe
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I saw that as well. I am going to wait for someone with acute OCD to give us a review
Stock sprocket really seems like an if-it-ain't-broke-don't-fix-it kind of thing.
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I'm wondering if this is the solution to straight-cut tranny gears. Get rid of the 5th gear buzz.
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I'm wondering if this is the solution to straight-cut tranny gears. Get rid of the 5th gear buzz.
Now there's a Harley-esque solution for you. Fix a simple machining question in one place by adding a wholly new and unnecessarily sophisticated system someplace else.
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If this absorbs torque power pulses, it also absorbs torque. Less tq/hp?
Will await real time reports on this. Looks like a vibration damped sprocket - sort of.
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Umm, guys, any of you ever own a Japanese bike in the 60's (or 70's, 80's, etc)? What you're seeing is H-D reaching into the past and borrowing a device that was standard equipment on every unit construction bike I ever owned. The rubber "cush drive" system attempts to dampen power train impulses, similar to the compensator H-D uses. Pretty slick how they get you to hand them over $300 for something that should have been part of the design from the git-go.
Jerry
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I'm wondering if this is the solution to straight-cut tranny gears. Get rid of the 5th gear buzz.
Pretty much what I thought too.
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Pretty slick how they get you to hand them over $300 for something that should have been part of the design from the git-go.
Jerry
The MOCO is about as crafty as they come.
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Could this be the fix to our crank runout problem. Dampen the forces when we accelerate or lug the engine? :nixweiss:
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the v-rods have had this since 2002..........
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One of the few 08 features that is retrofittable to the 07's ..
I've got 1200 miles on my IDS and am very pleased , much smoother , can easily run down as low as 60 in 6th.
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Same style of system used on the V-Rod, they had squeeking issue early on , They had a HD part number from the 70's that is a poly grease. I still have the tube of it cool old logo on it.
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:help: Does anyone have experience with the IDS and a built motor?
Thanks
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Could this be the fix to our crank runout problem. Dampen the forces when we accelerate or lug the engine? :nixweiss:
I’m with Brad. It is my sense that the IDS was added to offset the reduced capacity of the Engine’s Comp Sprocket. The peripheral benefits are returned through the seat of the pants.
djkak
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I’m with Brad. It is my sense that the IDS was added to offset the reduced capacity of the Engine’s Comp Sprocket. The peripheral benefits are returned through the seat of the pants.
djkak
The ECM remap in Nov 06 for these 96/110 was for torque smoothing which is related to the compensator and lugging as well.
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The ECM remap in Nov 06 for these 96/110 was for torque smoothing which is related to the compensator and lugging as well.
That is my understanding as well.
djkak
.....Regarding flywheel shift, one thought that I hear kicked around is that this engine’s ability to accelerate in high gear at engine speeds near 1,500 rpm will cause the flywheels to shift. The claim is that torque spikes of 1,300 to 1,500 foot pounds can be measured at the crankpin in 6th gear under low rpm, wide open throttle conditions. I have heard that the torque smoothing recalibration is designed specifically to address this.
The new 6 speed’s primary and overall gearing place a much greater load on the engine’s compensating sprocket which results in the rapid loading and unloading of the assembly at extremely low engine rpm’s; I’ll bet the mechanical stops of this sprocket take quite a pounding under these conditions. ECM recalibration along with the rubber isolated rear wheel sprocket will allow the rider to lug the engine down well below reasonable minimums without breaking engine parts. I never add significant power while in the higher gears below 2,500 rpm; it just doesn’t feel right.....djkak