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I have a set off Ohlins STX 36 twin shocks on my bike. I purchased them second hand and am quite happy with the current damping. I would like to try a slightly heavier spring but canít find any markings. The springs are black but on one or two spots they appear chrome underneath. They may have been painted at some point.I cannot find a guide online that gives the dimensions and spring rate of Ohlins springs.My springs are very close to 60mm outside diameter. I measured 59.6mm.I have 10 active coils and a total of 12 coils. The first few are spaced very close together.The wire diameter appears to be 7.15mm.Does anyone here have a Ohlins dimension cross reference to rate chart or a similar set of springs and know the rate. Once I work out what I have I can than decide what to buy.Thanks Steve
I've dealt with Cogent Dynamics for Ohlins shocks...They had slightly better prices , friendly fast service... https://www.motocd.com/
Twowheelsadict asked the question why I think I need a stronger spring. This is a good question and from some other forums I have been on it appears to be a belief the heavy springs equals good handling. I do not describe to this line of thinking and wan't to use most of the travel and only have the bump stops come into play for the really big stuff.What I did was slide the bump stops up on the shock shafts. I found that they are a loose fit and would easily slide back down. To contract this I tied a piece of waxed looming string around the shaft and the bump stop pushes this down. This provided a more accurate reading.I set my sag at around 27mm with me on the bike. These shocks give me about 95mm shaft travel to half bump stop compression.I than went for a very sedate ride on good roads with very mild acceleration. I still had a bout 30mm of travel left. Hard acceleration on smooth roads uses almost all of the travel. Strong acceleration on less than smooth roads appear to use full travel (bump stop pushed all of the way down). Large bumps at legal speed use all of the travel. Very big bumps like the one I hit yesterday and should have been going a bit slower feel like the bike is trying to launch me into space. Small ripples at speed don't use all of the travel (this tells me that I don't have to much rebound pumping the shock down. I could reduce the sag but find I end up with the shock topping out on some roads, or at least feels like they do. I can't find any numbers but they may have been painted over.I am in SE QLD Australia and don't appear to have a local Ohlins distributor. On the Ikon website they kindly put the dimensions of their springs so you can work out what you have.I was hoping Ohlins did the same. ThanksSteve
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