Ohlins spring rates.

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   Im looking for a table displaying the AP8240 spring rates for a given rider weight, can anyone help?. Ive got a 31/95 spring fitted but feel I need a lighter one as my weight is down from a few years back when I had this spring fitted. With the 31/95 Ive got sag at 37mm rider on board fully kitted, but the pre load adjuster ring is only a few mm from fully wound off and the back end feels harsh now Ive had the front Showas sorted.My curent weight fully kitted is 80kg.

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Stevex Members Profile Send Private Message Find Members Posts Add to Buddy List Moto GP Alien Joined: 05 Jul 2016 Location: UK Status: Offline Points: 1481	Post Options Post Reply Quote Stevex Report Post Thanks(0) Quote Reply Topic: Ohlins spring rates. Posted: 13 Jun 2024 at 22:22
	Im looking for a table displaying the AP8240 spring rates for a given rider weight, can anyone help?. Ive got a 31/95 spring fitted but feel I need a lighter one as my weight is down from a few years back when I had this spring fitted. With the 31/95 Ive got sag at 37mm rider on board fully kitted, but the pre load adjuster ring is only a few mm from fully wound off and the back end feels harsh now Ive had the front Showas sorted. My curent weight fully kitted is 80kg.
	People say I don't know Jack Sh1t; but I do, he lives next door.

redratbike Members Profile Send Private Message Find Members Posts Add to Buddy List Moderator Group The Collector Messiah Joined: 07 May 2008 Status: Offline Points: 16331	Post Options Post Reply Quote redratbike Report Post Thanks(0) Quote Reply Posted: 14 Jun 2024 at 07:14
	no idea if this will help you How to read spring part numbers: Example Part Number: 65/200/80 -65mm Internal Diameter -200mm Long -80 N/mm Spring Rate below are the codes for the most common spring rates used on Ohlins shocks; 24=80 26=85 29=90 31=95 34=100 36=105 39=110 41=115 taken from https://mrpmotorsports.com/blog/how-to-read-the-numbers-on-an-ohlins-spring/#:~:text=Ohlins%20also%20prints%20this%20rate,an%20%2280%22%20spring%20rate.


Spoonz Members Profile Send Private Message Find Members Posts Add to Buddy List Admins Group Joined: 11 Feb 2008 Location: North Devon Status: Offline Points: 10957	Post Options Post Reply Quote Spoonz Report Post Thanks(0) Quote Reply Posted: 14 Jun 2024 at 07:45
	To my knowledge there is no aprilia specific list of spring rates linked to rider weight etc. Because the calculation is partly based on linkage ratio, a generic list won’t be accurate. There are rate calculators on the net if you know the linkage ratio, your riding weight, etc etc.

Stevex Members Profile Send Private Message Find Members Posts Add to Buddy List Moto GP Alien Joined: 05 Jul 2016 Location: UK Status: Offline Points: 1481	Post Options Post Reply Quote Stevex Report Post Thanks(0) Quote Reply Posted: 14 Jun 2024 at 07:55
	Thanks for the info,appreciate it.
	People say I don't know Jack Sh1t; but I do, he lives next door.

K3Lewi Members Profile Send Private Message Find Members Posts Add to Buddy List Moto3 racer Joined: 05 Sep 2020 Location: Northumberland Status: Offline Points: 23	Post Options Post Reply Quote K3Lewi Report Post Thanks(0) Quote Reply Posted: 14 Jun 2024 at 09:04
	Racetechs website has a good spring rate calculator, where you input bike, riding etc and gives you a suggested rate. Used their data in the past to get Springs etc

Stevex Members Profile Send Private Message Find Members Posts Add to Buddy List Moto GP Alien Joined: 05 Jul 2016 Location: UK Status: Offline Points: 1481	Post Options Post Reply Quote Stevex Report Post Thanks(0) Quote Reply Posted: 14 Jun 2024 at 13:28
	Is the spring rate comparable with rider weight? If the back feels over sprung should I go down from 95 to 80N rate or just the next one down, which would be a 90? Spoonz, I found an old post of yours from another forum stating the 10191 31/95 was for a kitted rider from 80-88kg (you quoted 12.5- 14 stone), in which case at 80 kg Id need to go to the next lower spring rate of 29/90?
	People say I don't know Jack Sh1t; but I do, he lives next door.