Are Suzuki Hyabusa clutch springs special?

Idaho Red Rocket 3 said:

I also made a comparison of the various clutch springs I have. I took the 4 sets of springs to Rekluse Clutch in Boise. Yup they are made right here.
I asked if they could rate the springs for me and how much it would cost. They said the never had anybody ask to do that. Looks like a 5 minute job so lets just do it. They did it for free. Thank You Rekluse Clutch.

Each spring was compressed to the 1 inch working length when installed in the clutch.
Triumph stock spring (yellow paint line) that came out of my 2006 bike: 50.6 lbs.
Triumph stock update kit spring ( blue paint line) that comes in the update kit: 73.0 lbs.
Barnett spring that comes in complete Barnett clutch kit: 84.6 lbs.
Carpenter clutch spring: 94.4 lbs.
I will be installing the Carpenter Springs.

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sleeves said:

Gday

So this afternoon I drove round to @Paul Bryant place and we made use of his very useful pressure tester.

Together we had.

1. Set of Barnett Clutch Springs
2. Set of MTC Clutch Springs
3. A locally made copy of the Barnett Springs by and old couple in Hawkes Bay
4. Set of OEM Springs out of my bike known to be slipping.

We ran two tests and repeated the tests. First test was compressing the springs until 60psi was reached the longest measurement was sought, in this the Barnett and locally made unit came out best followed by the MTC and finally the OEM.

Next we compressed all springs to a distance of 25mm (around 1") and read the pressure. The Barnett was best again, followed by the copy, then the MTC, then the OEM.

Not recommending brands here or anything this is just what we found and all three options are going to be better than the OEM springs.





Paul's lovely homemade pressure tester

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Ishrub said:

I think I remember posts a few years ago referencing Suzuki Hyabusa clutch springs being very strong upgrades for Rockets and of a par or better than Barnetts HD ones.
The stock Triumph ones were not very impressive apparently and the common aftermarket clutch kit providers were not much if any stronger at all.

I think Neville did some measurements. I'll have a search.............But anyway

Seems very cheap especially with free shipping from UK.

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Suzuki Hyabusa clutch springs

For Suzuki Clutch Spring Kit Gsx 1300 R-K1 Hayabusa 1St Gen 2001
Clutch Spring Heavy Duty
Specification & Technical Data
OD=18.50mm Length=28.40mm(2.50)
Part Number: 199614

Pack Size: Per 6​

Model Compatibility :
Suzuki SV 1000 (Naked) 2003 - 2007
Suzuki SV 1000 S (Half Faired) 2003 - 2007
Suzuki GSX 1300 R Hayabusa (1st Gen) 1999 - 2007

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APE BROCKS BUSA HAYABUSA GSX1300R RACE HEAVY DUTY CLUTCH SPRINGS DRAGBIKE

APE BROCKS BUSA HAYABUSA GSX1300R RACE HEAVY DUTY CLUTCH SPRINGS DRAGBIKE | eBay

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​

When ordering from the US, parcels may be subject to import tax and duty charges, which the buyer is responsible to pay. APE BROCKS BUSA HAYABUSA GSX1300R RACE HEAVY DUTY CLUTCH SPRINGS DRAGBIKE​ This product data sheet is originally written in English BRAND NEW !! SET OF SCHNITZ ULTIMATE CLUTCH SPRINGS FOR BUSA If your clutch is slipping jerks when you run it hard on the street or at the drag strip, these are what you need !!! PART NUMBER: HAY1014 ( AS SHOWN IN PHOTO SLOT #1 ) FITS THE FOLLOWING APPLICATIONS: 1999 2000 2001 2002 2003 2004 2005 2006 2007 SUZUKI GSX1300R HAYABUSA THESE SPRINGS INSTALL AT 40 POUNDS OF PRESSURE MEASURED AT 1.00" NO SHIMMING OF THESE SPRINGS REQUIRED!! This is a race part - - - care must be taken while getting used to how your clutch feels as you get used to it. These heavy-duty clutch springs are a must for any kind of performance riding !! DON'T HESITATE TO CONTACT ME FOR A QUOTE ON ANY APE PRODUCT - - CHANCES ARE I CAN SAVE YOU SOME MONEY WITH MY OTHER EBAY LISTINGS !! Surface Finish Steel Modified Item No Brand SCHNITZ RACING Non-Domestic Product No Manufacturer Part Number HAY1014 Custom Bundle No UPC does not apply Part Brand SCHNITZ RACING

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Chariot said:

I tried a Haybusa clutch in my trike .No success it still slipped .Too much weight[550kg] .I am going to try a Barnet clutch

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