What Is The Difference Between 172.5 And 175 Cranks

This is why in the future I think manufacturers will start making crank lengths in 5 to 10mm increments. I have 175mm cranks on my road bike and 1725 on my tri-bike I notice no difference.

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Because the crank length is a part of your bike fit the best length depends on your height body proportions and joints.

What is the difference between 172.5 and 175 cranks. Common Crank Lengths. Cant really tell much difference if Im honest - went 175 on my last chainset as it was the only one left in stock at the heavily reduced price I paid. So try them out if you dont like them swap em back.

Whereas now 170 is short 1725mm is normal and 175 mm cranks are very common. Based on tradition I think the 170 1725 and 175mm will stick around but we are splitting hairs moving in 25mm. Whereas now 170 is short 1725mm is normal and 175 mm cranks are very common.

Ive settled on 175 for mtb and 170 for road and. The difference in length is 25 millimeters or about 15 percent you probably wont notice a thing. Its enabled me to do rides I couldnt do then.

I had to change to put less stress on my knees. My advise to people with even remotely dodgy knees is dont ride singlespeed Mountain Monkey and keep to cranks on the shorter side of safe. I just changed from 1725 to 165 cranks on my road bike 3 wks ago.

Ive got from 165-175mm cranks on various bikes. Although Q Factor has become a universally recognised measurement other people in. I dont notice much of any real difference between these though usually I am only switching between 175 and 1725 these days.

Q Factor is the distance between the outside of one crank arm to the outside of the opposite crank arm. Personally I have had bikes with 165 170 1725 and 175. 3 maydog Aug 10 2011 531Aussie Well-Known Member.

Though 1675mm 1725 mm 1775mm and 180mm lengths are also available for certain cranksets. While spinning I could almost convince myself I could tell I was on 175s but while in the middle of hard efforts crank length never entered my mind. Same here using or have used 170 1725 and 175mm crank arms.

I use 1725s and had the opportunity to ride a set of 175s for a week while my cranks were being worked on. Most cranksets are available in 160 mm 165 mm 170 mm and 175 mm options. Still though the difference between 170 mm and 175mm is less than 3 and leg lengths of bike riders vary by far more than that.

An athlete should pick the length that allows them to most comfortably apply force to the pedals without restriction. Maybe a sensitive rider could but I think some riders tend to overstate how much 5mm or even 25mm makes a difference. Later got a bike with 175 never bothered to change it.

Barring adjusting the difference in saddle height by a cm it makes zero difference to me. Still though the difference between 170 mm and 175mm is less than 3 and leg lengths of bike riders vary by far more than that. Started on 170 tried 165 didnt notice.

There is a school of thought particularly in the United States which suggests that crank length should be proportionate to. However it has made a big difference in how much extra power I have to generate to make up for the loss of leverage by switching to the shorter cranks.

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