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You're bidding on a brand New
Genuine Progressive Suspension brand
Titanium Mountain Bike Spring
These exact springs retail for over $240 dollars!
Specifications:
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Spring Rate: 275lb/in - 48.2N/mm - 4.91Kg/mm
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Free Length: 5.25in - 133mm
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Travel: 2.25in - 57mm (2.85in - 72mm actual travel*)
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Inside Diameter: 1.40in - 35.5mm (standard)
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Outside Diameter: 2.06in - 52mm
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Weight: 0.295lb - 134g (yes, VERY light!)
*NOTE: Progressive Suspension originally rated this spring to have 2.25" inches of travel, but according to the print this spring can actually be safely compressed 2.85" inches. This means the combination of your preload and the maximum travel of your shock cannot exceed 2.85".
Ultra light and World Class action - get this awesome upgrade for your shock at a bargain price. This Ti Spring fits several different shocks, from several different manufacturers - too many to list, and I'm not going to try. Using the specifications listed above, you should be able to verify fitment for your particular application (you likely know what spring you're looking for). If you are uncertain, please check your shock manufacturer's website for "optional" spring dimensions & rates - or perhaps contact them directly. If this is not the spring you need, please check my other listings for other sizes and rates. If the spring you need is not listed, then I do not have it - and I can't get it (sorry).
New, TITANIUM, bulk packaged. Beginning bid nearly one tenth of retail value, no reserve, spring goes to the highest bidder - GOOD LUCK!
Remember, it is your responsibility to be sure you’re bidding on the correct spring – do not bid unless you are SURE this is the spring you need.
As I said, I cannot tell what spring will fit which shock (please do not ask), but here are some tips for picking the proper spring for your needs. There are basically five important things you need to know about picking your spring.
- The Stroke of your shock - This is the actual travel of the shock itself. To measure this, measure the visible part of the shock shaft in Inches 1" = 25.4mm (This is the part that disappears as the shock compresses). Remember, the bumper on the shaft will compress so be sure to measure the full metal-to-metal stroke - not merely the bumper contact.
- The Maximum Spring Free length that your shock will take - To do this wind the preload off completely and measure from the inside of the spring collar to the inside of the preload nut.
- Spring rate in Lbs. - Spring rate refers to the stiffness of the spring and will vary due to rider weight, riding style/discipline, Leverage ratio of the bike, and suspension design. As a general rule you are trying to achieve the correct amount of sag. Sag is the amount your suspension travels when you're sitting on your seat, feet on your pedals and hands on the bars. This should be around 1/3 of the total travel on a DH bike and 1/4 of the total travel on an XC All mountain bike (This can vary due to suspension design and personal preference).
- Inside diameter (I.D.) – The easiest way to determine what this dimension should be is to compare it to the inside dimension of the current spring. Progressive’s Titanium springs generally all have an I.D. of 35.5mm or just under 1.40” inches. This can be tight on some shocks, and results in contact with the shock itself.
- Outside diameter (O.D.) – Like the I.D., this is an issue of clearance and if you know what the O.D. of your current spring is and it’s no smaller than the Titanium spring you’re considering then there’s no problem. If you current spring does have a smaller diameter, then all you need to do is figure out how much bigger you can go by checking the point where the O.D. comes closest to contacting something (if there is such a point).
A special note regarding the I.D & O.D., when figuring out these dimensions be sure to leave a little bit of a “safety” margin. Though these springs are far beyond industry standards and have been individually inspected, there are still some slight tolerances involved. Also, it is common for a coil spring – even of the highest quality – to deflect slightly when compressed, which could result in contact is clearance is not sufficient.
Once you have established the answer to the 5 questions above, you need to choose your spring using the following rules
1.Spring Stroke should be Equal to or Greater than Stroke of the shock (plus any prelaod).
2.Spring Length should be less than the Max Free length of the shock, and I.D. & O.D. will not result in any contact (This is so the spring physically fits).
3.Spring Rate should be correct to suit your body weight, bike and riding style
EG. If your stroke is 2.8", your rate is 450Lbs, you run .10" of preload, and your max free length is 165mm. You need - 3" x 450Lbs x 162mm i.e. - If you don’t see a spring that has the exact stroke of your shock you can use a spring with a longer stroke, as long as the free length will fit.
The SMALL PRINT: Typically buyers pay within 24 hours, and seller ships spring within 24 hours of receiving payment. Seller requires the winning bidder pay for their spring within 8 calendar days of the close of auction. If the spring is not paid for within this time frame, and the bidder has made no attempt to contact the seller, then the spring may be reported to Ebay as an "unpaid item" and relisted. Also, though the US Postal Service's "Priority Mail" services have proven to be a quick and reliable way to ship, the "tracking" aspect of said service leaves a bit to be desired. Sometimes the tracking website shows a complete transit record (similar to UPS) in a timely manner, and other times it only confirms when the item has been delivered (and sometimes it shows that a few days after the fact!). For this reason, if asked I can supply you with a tracking number but be warned that it often proves futile. This service typically takes 2-4 working days on items shipped within the US, and 5-10 working days for international delivery. I use it because comparable services that provide "real" tracking cost 2 to 3 times as much. Be patient, it will get there!
NOTE: If you are bidding from outside of the United States, remember you will be responsible for additional import fees! The springs are described on the customs papers simply as "Titanium Spring" and typically the starting bid is used for the claimed value. CHECK WITH THE CUSTOMS OFFICE IN YOUR AREA to see what these additional fees will be (I do not know).
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