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Spring selection criteria
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Posted by: Trailryder42---------------------
Hey guys,
When you get a spring calculation figure from a place like Race Techs site, it asks you what kind of riding and your weight without gear. It gives you a recommended spring rate, then you find the right series for the bike you're riding. I'm assuming the spec they give you is for a stock bike.
My question: I run a 4 gal IMS tank on my XR4, full, that's about 13 lbs. heavier than a full stock tank, then there's the weight of the bigger tank itsself. Should I add these weights to myself when doing the spring calc?
Posted by: Okiewan---------------------
I would think so.
Posted by: bclapham---------------------
you also have to be careful which site you go to since the spring rates they give are for their valving setup. For example, you are likely to get 2 different reccomendations from 2 different vendors.
Posted by: Trailryder42---------------------
Yes, I'd thought of that as well. But springs and valving are 2 different things. The springs are what support the weight of the bike. I guess whoever I send my suspension off to, I need to be sure to tell them of my big tank so they can spring/revalve accordingly.
Posted by: glad2ride---------------------
I once called Race Tech and MX-Tech. Both said their spring rate calculators are not valving dependent, only weight dependent.
Posted by: Jeremy Wilkey---------------------
Which is why rider weight with gear is so important. A larger tank adds weight. As pure by the numbers as I like to be I often find myself rounding up or down depending on what factors I'm seeing. So I would say determined by weight, influenced by bike and rider preferences as impacted by conditions. Things are always changing in this realm..
Jer
Posted by: Milhaus---------------------
Race tech's site says you should enter in weight WITHOUT gear.
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