[6foot4]

How much of a difference will I notice. I use this bike as a gravel-grinder/road hero and I'm wondering how much downhill performance will suffer?

 

[Harold]

How much of a difference will I notice. I use this bike as a gravel-grinder/road hero and I'm wondering how much downhill performance will suffer?

How fast are you usually going before you start coasting? Or, phrased another way, what's the top speed at which you will usually pedal? How fast do you want to be able to sprint on the flats?

For me, gearing is never really a question for downhills, since I'm coasting. Gearing IS a question on the flats, though.

 

[chazpat]

You can use this site:

Bicycle Gear Calculator

to compare the two.

Are you running in your current highest gear a lot? Spinning it out?

 

[Lone Rager]

10%, 6% and 0%, respectively.

I had to be careful there that my spell checker didn't auto correct to "respectfully" by mistake.

 

[6foot4]

How fast are you usually going before you start coasting? Or, phrased another way, what's the top speed at which you will usually pedal? How fast do you want to be able to sprint on the flats?

For me, gearing is never really a question for downhills, since I'm coasting. Gearing IS a question on the flats, though.

Usually about 25-30mph.

 

[6foot4]

10%, 6% and 0%, respectively.

I had to be careful there that my spell checker didn't auto correct to "respectfully" by mistake.

That's not super noticeable. Thanks

 

[6foot4]

You can use this site:

Bicycle Gear Calculator

to compare the two.

Are you running in your current highest gear a lot? Spinning it out?

Not often, but sometimes on the downhill.

 

[J.B. Weld]

How much of a difference will I notice. I use this bike as a gravel-grinder/road hero and I'm wondering how much downhill performance will suffer?

What size are your wheels and tires? I use 29 x 2.3" and don't spin out till about 40mph with a 34t chainring, I also use my mtb as a road/gravel grinder frequently. Unless you have skinny tires and 26" wheels I think you'd be more than fine with a 40t ring.

 

[6foot4]

What size are your wheels and tires? I use 29 x 2.3" and don't spin out till about 40mph with a 34t chainring, I also use my mtb as a road/gravel grinder frequently. Unless you have skinny tires and 26" wheels I think you'd be more than fine with a 40t ring.

It's a 29er. 11-34 9-Speed Cassette

 

[frdfandc]

Why do you want to change gearing in the first place?

Sent from my SM-G930V using Tapatalk

 

[6foot4]

Why do you want to change gearing in the first place?

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Shimano doesn't make a compatible chainring of that size anymore.