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How much weight do double butted spokes save?
about 70 grams
Replacing 32 straight gauge spokes with double-butted spokes gives almost the same benefit of 36 straight gauge spokes, but for about 70 grams less. The extent to which load is shared between neighboring spokes depends on the ratio between the rim stiffness and the spoke stiffness.
Are double butted spokes worth it?
Double butted spokes are lighter than straight gauge and offer better ride qualities due to a more flexible center section. Double butted spokes are generally very strong, however spokes with 1.5mm center sections can be challenging to build at higher tension due to twisting.
Are sapim race spokes good?
The Sapim Race is a fantastic spoke that strikes a great balance of weight and strength. It works well on touring, commuter and mountain bikes alike creating a tough and long-lasting wheel that’s also great value. For the ultimate combination of strength and weight, we’d recommend the bladed CX-Ray spoke.
What is a double butted spoke?
Double-butted spokes: These are lightweight spokes that are thinner in the middle (e.g going from 2mm to 1.8mm and back to 2mm again) to save weight and reduce ride stiffness, without compromising on wheel strength.
Why are butted spokes stronger than straight gauge spokes?
Yes, I’ve read several claims that double-butted spokes are superior because they concentrate the strain (vs stess) in the straight part of the spoke rather then the ends. “Butted spokes are more elastic so this reduction in tension is spread over more spokes, each experiencing a smaller reduction in tension.” – No.
Why are butted spokes stronger?
This is because spokes break because of the cyclic stress they suffer as the wheel rotates. As the spoke rotates thru the bottom of the wheel it experiences a reduction in tension. Butted spokes are more elastic so this reduction in tension is spread over more spokes, each experiencing a smaller reduction in tension.
How much does a bike spoke weigh?
The average spoke weight is 14 grams, but some special spokes intended for racing can weigh as little as 3 grams. The weight savings aren’t very significant for the average rider, but they make a marginal difference in races and can mean saving a few seconds, which can make or brake a first place.
Are straight pull spokes stiffer?
Bottom line: straight pull spokes, properly designed and built, will be lighter, stiffer, and require less truing than a conventional wheelset with the same number of spokes.
What length spokes do I need?
Generally, there is a one-to-two millimeter range of acceptable spoke length for a wheel. If you want to build with non-differential spoke selections, and the two spoke lengths are only one millimeter different, select the longer length for both sides, and the wheel will typically be fine.
What is the diameter of a double butted spoke?
Sapim’s super light double butted spoke features a 1.5mm center section for weight reduction. Wire diameter is 2.0-1.5-2.0mm (neck-body-thread). Sapim butted spokes have two major benefits: less weight and more strength.
What are the benefits of butted spokes?
Sapim butted spokes have two major benefits: less weight and more strength! The SCFT-system (Sapim Cold Forging Technology) ’stretch‘ the spoke while retaining the linear molecular structure of the material, thereby increasing the spoke strength at the middle by at least 48%.
How can I adjust the strength of my sapim spokes?
You can adjust this with our spoke washer (see page 34 for more details). Sapim uses only high grade stainless steel specially drawn to our own specification of material and tensile strength. The long term experience and many trials insure that Sapim spokes last long.
Why sapim spokes last so long?
The long term experience and many trials insure that Sapim spokes last long. Precise definition and small tolerances are constant point of attention in the production process. This guarantees the highest quality for millions of spokes Sapim produces every year.