Should you use a Shorter Crank? 🤔 | RobbArmstrong

Shorter Cranks.... 🗣 LETS TALK ABOUT IT! I've recently swapped cranks from a 170mm to 165mm but... I am in the process of going to 162.5mm. You may be asking yourself: "Why in the world would you want a crank that small?" That's where the *StoryTime comes in, 🙂
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[@brianawd]

I just switched from 172.5 on my TT bike to 165. It was a huge difference for me. I’m now going to switch my road bike from the 172.5 to 165.

[@robbarmstrong8702]

That’s what’s up! I been running a 165 on the TT Bike for forever. It’s been working out on the RoadBike and now I’m considering going 160 on the TT Bike, 😆 #RobbArmstrong

[@PatrickLino]

Did I miss in the video where you mention the company selling the crank arms?

[@robbarmstrong8702]

I didn’t mention it. Waiting to receive them first. Hopefully they’ll be here soon but with the Hurricane situation we need power & water WAY before Mail. #RobbArmstrong

[@MichaelRobibaro]

North shore billets Canfield Praxis Zane Prowheel DMJ Heir And many others

[@robbarmstrong8702]

NICE!!! Whole lotta options out there I see, 🙂 #RobbArmstrong

[@tonyg3091]

Normally on 172.5, tried 165 did not quite like it, lack of torque is palpable. Moving to 167.5.

[@robbarmstrong8702]

@@tonyg3091 the indomitable crank spirit we need, 🥹 #RobbArmstrong

[@irondistance4313]

I run a 160 on my Tri bike and a 165 on my road bikes. My bikefitter recommended those lengths, going from the 165 on TT to 160 felt wierd and took some getting used to but i have come to like it. I also like the 165 on my road bike

[@robbarmstrong8702]

Mmmmm, 🤔 160 on the TT Bike sounds interesting. #RobbArmstrong

[@JSSBBB]

After 40 years on a 170mm, I switched to 167.5 this year. I'm loving it. I have a fast spin anyway, so it suits me. I've thought about 165mm, but I'm just not sure. I will look forward to your review of this 162.5.

[@robbarmstrong8702]

When you say “fast spin” what RPM are we talking? 👀 #RobbArmstrong

[@cornelhughes]

Running 165's for a few years. Don't see myself going lower since I have long legs. Recently purchased some carbon cranks (ROCKBROS ) for about $200. Waiting for my sl8 frameset to install them

[@robbarmstrong8702]

NICE!! 165mm for the Win!! 🙌🏾 🏆 #RobbArmstrong

[@myNamezMe]

As a short rider, 150/155mm cranks seem to be more optimal for me, even if the bike frame isn't optimized for them. My next bike build will probably have custom geometry to optimize that last piece, adjusting the BB drop and making some other minor tweaks.

[@robbarmstrong8702]

Who would you have build a custom geo frame? #RobbArmstrong

[@myNamezMe]

@@robbarmstrong8702 Not sure yet, as my current carbon frame still works fine, but I’ve got my eye on titanium frames.

[@robbarmstrong8702]

Titanium would be dope! I’d be very interested in a custom geometry build. Get that perfect stack height with a slammed stem, 🔥 #RobbArmstrong

[@MichaelRobibaro]

Heir has 152mm 24mm spindle Praxis Zane has 150 mm 30mm spindle 160mm via ProWheel DMJ 24mm spindle As for custom geo, of steel go Marino If titanium go Titan cycles I did a custom geo Soft-tail for 1250 shipped Hard tail would be less, full suspension will be more

[@LOGICAL-JAY]

I normally use my aero helmets around the early spring or fall(60degree) weather

[@robbarmstrong8702]

That cool weather aero helmet is life! #RobbArmstrong

[@MichaelRobibaro]

Yes you should , you really cant go to short, but need to make sure they dont have a kids Q-factor. Like the goldix I had(145mm Qfactor) you want a Qfactor on the 168-172mm range Praxis Zane is a good one for 30mm spindle for like 170 HEIR is good for 24mm for 150 Best budget for 24mm is prowheel DMJ Think thats the right letters for like 44

[@robbarmstrong8702]

This is some REALLY GOOD INFO! I need to check some of these Brands out. Very much appreciated! 🙏🏾 #RobbArmstrong

[@MichaelRobibaro]

@@robbarmstrong8702 there's a few others too You even got CF options if you don't mind paying 300

[@LOGICAL-JAY]

I'm 6 foot 2 and I used to use 175mm crank arms..I would get slight pain in my hip..as soon as I went to 170mm the pain went away...

[@robbarmstrong8702]

170mm sounds about right for you. Team Short Cranks! 🙌🏾 #RobbArmstrong

[@LOGICAL-JAY]

@robbarmstrong8702 yes indeed..i love the arm length and the smooth cadence on the peloton which is 170mm so I mimicked the same on the road bike..

[@tonyg3091]

Absolutely! I found 5 mm down from optimum works perfect. 7.5 mm down is overkill.

[@robbarmstrong8702]

@@tonyg3091 ✅ #RobbArmstrong

[@sandydennylives1392]

Any views on the new wheels? Kinda the elephant in the room

[@robbarmstrong8702]

Which wheels? I’ve purchased 3 sets in the last few months, 👀 #RobbArmstrong

[@sandydennylives1392]

@@robbarmstrong8702 From the University of Princeton . No probs if you didn't want to do a ride review after the unboxing.

[@robbarmstrong8702]

Been riding other Bikes & the Factor is awaiting its new *BarSystem so it’s currently out of rotation. #RobbArmstrong

[@sandydennylives1392]

@@robbarmstrong8702 That's an excellent reason, like the University itself, it's hard to get a guided tour.

[@robbarmstrong8702]

#RobbArmstrong

[@Chris._P._Bacon]

I'd say no. The difference in mm is so minimal, there won't be a noticeable difference, I thought about getting 160 or even 165, but from 170 I highly doubt I'd notice it.

[@robbarmstrong8702]

Only one way to find out. #RobbArmstrong

[@CyclespeedTours]

I noticed 170 to 167.5mm Big improvement.

[@robbarmstrong8702]

NICE!!! Anything that makes being on the Bike more enjoyable I’m all about, 🙂 #RobbArmstrong

[@romanpramuka2703]

What's the brand of those cranks?

[@robbarmstrong8702]

*Soon, waiting on them to arrive. #RobbArmstrong