Paling Inspiratif Shimano Q Factor
Shimano q factor Last year i switched to 7900 and the knee pain returned. Mountain and fat bike.
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Shimano q factor. On the same bike with the same 7900 bottom bracket cups my calipers show. Sebelum membahas lebih jauh pertama kita harus mengerti dulu definisi q factor dan lainnya itu. Q factor has to take into account more than just biomechanics there are limitations due to bottom bracket size chainstay length and minimum chain line guidelines from people like shimano.
Q factor adalah jarak dari sisi terluar crankarm lengan crank kiri dan kanan. Shimano deore xt hollowtech ii mtb crankset 172 mm q factor 1x12 speed the shimano deore xt fc m8100 1 crank features an entirely new construction using direct mount chainrings special gear tooth profile for improved chain retention and a 172mm q factor. 78001475 mm 7900149 mm 6700.
With that said its important to notice the q factor of the road bike vs. Q factor is one of those metrics on the bike that people arent sure what to do with. So stance width is a combination of q factor and spindle length.
It is available with 53 39 52 36 50 34 and 46 36t chainrings and 165 170 1725 and 175mm crank arm lengths. The all new shimano ultegra r8000 series crank features lightweight crankarms a hollow outer chainring and a wider gear pitch for increased clearance on modern road frames. Stance width is the distance from pedal center to pedal center.
The dura ace wide pedals have 55mm spindle and the regular ones are 51. I think but wouldnt argue too strongly that q factor is the distance between crank arm faces. I spent a couple of years on shimano 7800 with little to no knee issues.
Then i switched to 6700 and the knee pain left. Sram xo1 and shimano xtr both width in at 168mm. Ultegra105 i find it hard to measure to the mm on pedals as there isnt a firm reference point however a while back i was trying to track down a knee problem i was having on one bike but not the other so i measured everything from the r540 to the 9000 pedals and they were all the same.
Istilah q factor sudah dikenal secara umum tetapi ada juga istilah lain yang mempunyai nilai dan tujuan yang mirip dengan q factor yaitu stance width lebar kuda kuda. For me im happy with a double at 4229 even on 9 spd with a 34 rear sprocket the bike is light. But the q factor of the double could be too low to clear the chain stays if i got the triple that.
Currently many shimano cranks boast a 146mm q factor and the masterminds at campagnolo prefer 1455mm just to mention a few. Shimano claims all of these cranks as having a 1475 q factor. But the spindle length of ultegra is 53.
Its poorly understood can be difficult to change and is dependent on what type of frame crankset and.
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