Most common gearing on a road bike

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rogerzilla

Legendary Member
If this was 1990, I'd say 52/42 and 13-21 ^_^

Some more entry-level bikes had 13-23 for weaklings and girls.

A 13-21 cassette is a really beautiful thing to behold and to use, as long as you live in the flatlands.
 

StuAff

Silencing his legs regularly
Location
Portsmouth
If this was 1990, I'd say 52/42 and 13-21 ^_^

Some more entry-level bikes had 13-23 for weaklings and girls.

A 13-21 cassette is a really beautiful thing to behold and to use, as long as you live in the flatlands.

Mr Legg used to run 53/39 and 12-21 (9 speed Dura Ace), despite the knee issues. Remember tailing him up Ditchling in 2010, and he was all over the road to make his way up, as I spun relatively- only relatively, being Ditchling- easy on 50/34 & 12-25.
 

ColinJ

Puzzle game procrastinator!
If this was 1990, I'd say 52/42 and 13-21 ^_^

Some more entry-level bikes had 13-23 for weaklings and girls.
Hmmm! :whistle:

My experience...

When I bought my first (adult) road bike back in 1989, the salesman in the bike shop laughed at me when I told him that I was taking it home on the train because I couldn't face 25 miles in Greater Manchester's rush-hour traffic for my first ride.

Even more annoying - I weighed 16.5 stone at the time, hadn't ridden a bike for 20 years and live in a very hilly part of Yorkshire so I asked for the cassette to be changed to an easier one (the bike had 52/42 chainrings and a 12-25 cassette). He started laughing again and told me that a decent cyclist could get up anything in a 42/25 gear! He then related the story of how he'd once powered up a wet 25% cobbled climb in a Belgian road race using a 42/21 bottom gear. I nearly chucked the bike back at him, the arrogant, stupid tosser :smile:!
He put a 13-28 on for me, and I soon changed the inner ring to a 39. :okay:
 

Jameshow

Veteran
I was on a 50/34 x 32-11 today didn't need the 34 on the three climbs today which was a good thing as the chains too long. Set up for 36 and a long cage RD.
 

CXRAndy

Guru
Location
Lincs
I'm slowly heading towards getting a road bike after years of using an MTB. What's the most common set up I should be looking for if riding in a hilly area. Lots of rolling countryside near me with the occasional flat bit, so likely need lower gearing than top speed.

Prefer disc brakes but is that a disadvantage with road bikes?

How much do you weigh?

What type of gradients are you climbing typically?

Are you a spinner or grinder pedal cadence?
 

CXRAndy

Guru
Location
Lincs
Have you seen my avatar?

Looking for something like this. Discs would be nice. Lighter the better.

https://www.ebay.com/itm/186914260149

Didn't want to presume. My suggestion is, you go for mountain bike gearing or a triple crank-set, with a cassette up to 40t.

You may never venture onto the lowest gearing but will be glad to be able to spin away when the gradient really gets steep
 

Bristolian

Senior Member
Location
Bristol, UK
When I bought my (used) Specialized Allez Sport two years ago yesterday (how time flies) I was 266lbs (120kg / 19st 0lbs) and pretty unfit. The bike came with 3x9 Shimano Sora with 50/39/30 chainrings and a 12-25 cassette. I rapidly found that I needed lower gearing for the hills that surround Bristol and replaced the cassette with an 11-32-tooth one, which helped no end although the 11-tooth cog rarely gets used. Even with the reduced chainring I was still finding turning the 50-tooth chainring over was difficult on even the slightest hill so last year I replaced it with a 48-tooth one instead and that has made a big difference.

My point here is that I think this is one of the big benefits of the derailleur gear-train system - if what you've got doesn't work for you it's relatively easy and cheap to change it. Don't stress about getting the gearing right straight off; get used to riding the bike and then decide what you need to do to make your rides what you want them to be.

PS: Four years ago my weight was 301lbs (136.5kg / 21st 7lb) and today it is down to 240lbs (108.8kg / 17st 2lbs) and my general fitness is much improved. My target for 2025 is to get down to 223lbs (101.6kg /16st 0lb). In my racing-snake days I was 133lbs (60.3kg / 9st 7lb) soaking wet - I have no delusions about getting back to that weight :okay:
 

robjh

Legendary Member
As most have indicated on here, fairly standard set-ups these days on road* bikes tend to be 50/34 front with anything from 11/28 to 11/34 rear. However, there's a lot of room for personal preference and I'm now running 48/31 front with 11/34 rear - I never regret using a lower gear on a climb but rarely miss the extra bit of top-end speed.

*gravel bikes are an offshoot of road bikes and overlap a lot, but tend towards lower bottom gears, and increasingly you see single front rings with a large rear cassette, eg. 40 front to 11-46, especially if 12-speed.
 
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