Rear Spring Rate
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From: Tipp City, OH
Rear Spring Rate
I am wanting to replace my rear spring to one set up for my weight. I am 170-175 and do only street riding (both cruising and agressive). I like to do a lot of twisties. I notice a lot of people running a 16 kg spring and wondered how I know what spring rate I would need. What weight is a 16 kg set up for? Help me decide if I should stay with the stock spring or upgrade.
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RE: Rear Spring Rate
http://www.racetech.com/evalving/eng...ngname=english
there's a calculator here that has the stock spring rate and race tech's recommendation for a spring rate.
there's a calculator here that has the stock spring rate and race tech's recommendation for a spring rate.
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RE: Rear Spring Rate
lol i weigh 250, me and my friend tuned the suspension for my weight with the stock spring and she handles quiet well. we did this cuz i dont have the money to upgrade as of yet but the stocker should suit u just fine. i run mine at the track and havent had any prob with it, track as in road track not drag
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From: Malta - Europe
RE: Rear Spring Rate
Interesting read. According to the racetech's link, my weight is just about right for the stock spring at 165 lbs. However, I ride a lot with my wife as pillion which adds another 104 lbs. How do you tune for both instances? Does this mean that I should be lookingat upgrading the spring?
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From: Tipp City, OH
RE: Rear Spring Rate
ORIGINAL: kukku
Does this mean that I should be lookingat upgrading the spring?
Does this mean that I should be lookingat upgrading the spring?
After looking at RaceTech's link I gues there is no real need for me to replace the factory spring. Not to mention the rougher ride on the street
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From: Prince George's County, MD
RE: Rear Spring Rate
That's what preload is for. There are 7 preload settings on the stock shock. Factory value is 3. When I had my stocker 3 was too soft for me and had my rear end sagged down (I saw an old pic of me riding). I bumped preload to 6 and it healed that condition but I lost a bit of feel.
I'm 213 in street clothes.
I'm 213 in street clothes.
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RE: Rear Spring Rate
ORIGINAL: Jaybird180
That's what preload is for. There are 7 preload settings on the stock shock. Factory value is 3. When I had my stocker 3 was too soft for me and had my rear end sagged down (I saw an old pic of me riding). I bumped preload to 6 and it healed that condition but I lost a bit of feel.
I'm 213 in street clothes.
That's what preload is for. There are 7 preload settings on the stock shock. Factory value is 3. When I had my stocker 3 was too soft for me and had my rear end sagged down (I saw an old pic of me riding). I bumped preload to 6 and it healed that condition but I lost a bit of feel.
I'm 213 in street clothes.
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RE: Rear Spring Rate
ORIGINAL: charlos
preload will change the sag settings, but it doesn't change the rate of the spring (unless it's progressive, and it might be, but even then it just changes the progressive characteristics of the spring.). a 16kg/mm spring will compress 1mm for every 16kg of load, regardless of the preload setting. but the preload setting determines the baseline for which the spring will actually start working--as in, if the spring is preloaded 5mm, the spring will not compress until there is 5*16kg or 80 kg on the bike. after there is, it will still compress at its rate. in the end, proper sag is VERY important, but if the spring is the wrong rate (too soft or hard), then sag settings won't correct that condition.
ORIGINAL: Jaybird180
That's what preload is for. There are 7 preload settings on the stock shock. Factory value is 3. When I had my stocker 3 was too soft for me and had my rear end sagged down (I saw an old pic of me riding). I bumped preload to 6 and it healed that condition but I lost a bit of feel.
I'm 213 in street clothes.
That's what preload is for. There are 7 preload settings on the stock shock. Factory value is 3. When I had my stocker 3 was too soft for me and had my rear end sagged down (I saw an old pic of me riding). I bumped preload to 6 and it healed that condition but I lost a bit of feel.
I'm 213 in street clothes.
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From: Prince George's County, MD
RE: Rear Spring Rate
I can assure you that at 250 lbs it is highly compromised.
Someone can check but IIRC the stock springs are progressive. I don't have my stocker anymore so I can't be sure.
Someone can check but IIRC the stock springs are progressive. I don't have my stocker anymore so I can't be sure.