Comparative Crankset Stiffness Data Released By Fairwheel Bikes
Defl weight 1000. This was the fastest bike on the overall lap and the climb.
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Comparative crankset stiffness data released by fairwheel bikes. The BB30 crankset is 10 stiffer 20 lighter and provides 300 more ankle clearance than the GXP system. The BB30 system is new BB industrial standard. Even assuming same stiffness the Exogram BB30 SW value would shoot up to around 21.
Join us on. 3cm can be the difference. BSA Italian BB86 PF30 BB30 Bbright BB386 and even BB90.
For road and MTB bikes aluminium cranks are considered to be tough stiff and light for the price. George Waugh The existing Ultimate was one of our favourite bikes with the frames stiffness-to. Theoretically the best in terms of frame stiffness.
With a boost in braking performance and predictability the ENVE 22 rims give any rider the confidence they need to descend aggressively. Theyve got one of the most extensive databases on crank stiffness having now completed their 5th crank shootout. Heel clearance isnt as good as BB30.
The rim bed has been strengthened with a 3k carbon weave which will resist delamination when removing tires. In typical Fairwheel fashion the build includes exotic speed parts from Thm Schmolke Carbon-Ti Tune Extralite Pillar and more. When Fairwheel Bikes measured deflection of various cranks under a load of 200lb 91kg a square-taper crankset 2006 Campagnolo Record.
Claimed reach particularly can vary dramatically in this test alone the bars range by almost 3 cm in Reach. It was 03 back from the Specialized. It shaved 14 grams moving the total weight to 8th.
The stems were similar enough in length that we did not normalize any stems in this test but in the future we may test some stems that need to be normalized for a fair comparison. This change is purely structural as it. Fairwheel suggests that crank stiffness doesnt matter much in terms of power efficiency at least not given the relatively small measured differences in rigidity Fairwheel has more testing.
The yet-to-be-released Canyon Ultimate CF Evo 100 SL tips the scales at just 485kg Pic. The crank arm sections are quite similar and while they probably have different layups crank arm section is the primary driver of stiffness for this design. Stiffness to weight ratio.
Stiffness to Weight Ratio. Steel cranks are common on older bikes and BMXs with aluminium found on most low- to mid-range road and MTB cranksets and the lightweight but expensive carbon fibre generally reserved for high-end cranksets intended for racing on-road or off-road. This places less stress on the chainring bolt increases stiffness and allows less material to be used.
575 faster than the second-fastest bike and 34 faster on the technical climb. It is a very good value crankset. But key to the build is that none of the parts.
Notes about reach drop and flare. The results are an impressive increase in rigidity in the frame and crankset better durability lighter weight and more ergonomic design for the crankset. Crank options are also the most plentiful of all tested cranks.
Finally we added the FSA Powerbox Alloy This innovative crankset is as you would expect extremely lightweight at only 751 grams and also has built-in power meters that collect data during the ride which can be sent via Bluetooth to a range of biking computers for analyzing your training sessions. Generous crankset versatility Cons. Every gram counts.
Not bad for a disc brake bike. Likewise you could send Fair Wheel Bikes a set for them to test on their crank test apparatus. Not by a large margin.
Actual weight on the frame came out to be 8532g. This was calculated using 1avg. Stiffness also improved over the already stiff previous version moving this one to the 3rd stiffest crank in the test.
The crank is quite light though which gives it the 5th best stiffness to weight ratio of all tested cranks though two that finished ahead of it are BB30 only. Notes on reach drop and flare. One thing that has always bothered us is that there is no standard system for measuring reach and drop.
This was calculated using 1avg. Defl weight 1000. BB options are as wide as a 24mm crank.
That puts it stiffness to weight at 7th out of 20. So yes theres some difference but the difference between the Lightning and S-Works cranks will be much smaller than say the difference between the Lightning and Campagnolo Record cranks. The latest version of the K-Force Light improved on the previous version we tested.
Initially EE plans to produce the crankset in the standard 34T50T and 39T53T however they are open to the possibility of expanding chainring sizes.
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Comparative Crankset Stiffness Data Released By Fairwheel Bikes
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