K2 / Proflex Riders Group

General => Tech Forum => Topic started by: SLIM on September 12, 2006, 09:05:13 pm

Title: ELASTOMER HARDNESS CHART
Post by: SLIM on September 12, 2006, 09:05:13 pm

 taken from a 1995 PROFLEX owners manual

spring weight v rider weight ( in LBS )

Dual spring bikes

spring          arcadia      

10 / 20          90 - 120

20 / 40          100 - 140

30 / 50          120 - 160

40 / 60          140 - 180

50 / 70          160 - 200


455 & 555

20 / 40          90 - 120

30 / 50          100 - 140

40 / 60          120 - 160

50 / 70          140 - 180

60 / 80          160 - 200


755

20 / 40          90 - 120

30 / 50          100 - 140

40 / 60          120 - 160

50 / 70          140 - 180

60 / 80          160 - 200


855 , 955 & ANIMAL

100 / 120          90 - 120

110 / 130          100 - 140

120 / 140          120 - 160

130 / 150          140 - 180

140 / 160          160 - 200

on the 855 , 955 & ANIMAL the higher spring is on top

on all others the lower spring is on top


so for example on my 555 i would need at 160 lbs

a 50 / 70 split ( 50 on top )

may answer a few of the recuring questions on elastomer hardness



         

Title: Re: ELASTOMER HARDNESS CHART
Post by: rapiddescent on September 13, 2006, 03:03:09 am

are you suyre its the Shore scale?

I also got the elastomer numbers from my old Proflex dealers manual.  Tested in my rig, an 80 ShoreA set of elastomers will get about 25mm of rear travel instead of 80mm for my fully loaded test mass. It works out at about 750lbs/inch travel for the bike and about 1800lbs/inch (first inch) for the shock.

The other thing is, they could well loosen with age and then you'll get the full travel back.

I'll put the spring rate curves up on my website later.  

cheers
callum
rds

Title: Re: ELASTOMER HARDNESS CHART
Post by: SLIM on September 13, 2006, 03:22:20 pm

 dont know if its the shore hardness scale

just someone asked in a previous post what hardness the originals were

thought i would share the info

Title: Re: ELASTOMER HARDNESS CHART
Post by: kiwi on September 13, 2006, 07:16:16 pm

i actually thought it was SHURE
[smiley=coolfrown.gif]

Title: Re: ELASTOMER HARDNESS CHART
Post by: Colin on September 14, 2006, 01:36:48 am

Quote

i actually thought it was SHURE
[smiley=coolfrown.gif]

are you sure? <grin>

Title: Re: ELASTOMER HARDNESS CHART
Post by: shovelon on September 14, 2006, 03:09:55 am

Quote

are you sure? <grin>

Sally sells seashells by the seashure.

Terry:-)

Title: Re: ELASTOMER HARDNESS CHART
Post by: lewism3 on September 14, 2006, 09:46:11 am

Shurely it should be shirley that sells seashells by the sea shure.

Title: Re: ELASTOMER HARDNESS CHART
Post by: kiwi on September 14, 2006, 08:12:12 pm

I am really not shure.And dont call me Shirley

Title: Re: ELASTOMER HARDNESS CHART
Post by: kiwi on September 14, 2006, 08:16:23 pm

Shock,horror hold the phones!
Kiwi is wrong!
It is surely the shore scale!

Title: Re: ELASTOMER HARDNESS CHART
Post by: orange on September 15, 2006, 05:08:46 am

Sure? :-)

Title: Re: ELASTOMER HARDNESS CHART
Post by: kiwi on September 15, 2006, 11:20:51 am

Totally 100 per cent shore (http://www.machinist-materials.com/hardness.htm)