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-   -   Compact vs semi-compact (https://www.bikeforums.net/road-cycling/1151521-compact-vs-semi-compact.html)

merlinextraligh 08-07-18 06:39 PM


Originally Posted by kbarch (Post 20494043)
Well, quicker than the other guys at the time, and only 'cause they were trying to spin out sooner on even easier gears, I betcha.

Pretty certain, Tour de France Riders in the 1970's were riding at speeds, the average BF poster only dreams about.

The broader point to all of this is that people often want to point to an equipment limit that's holding them back, and correspondingly a technical magic talisman.

Where in most cases, the answer lies with fitness, technique and savvy, much more than equipment.

jitteringjr 08-07-18 10:45 PM


Originally Posted by redlude97 (Post 20491239)
Oh, you know casually sitting in at 30mph@80rpm in a 52x11, so much extra work to "spin" 83rpm instead in a 50x11

The same logic applies at the other end, spinning a 34/28 at 79 rpm will save your legs while mashing a 36/28 at 75 rpm will send you to an early grave. Or so the compact fans would have us believe.

CliffordK 08-08-18 12:14 AM


Originally Posted by Dean V (Post 20492548)
A lot of people seem to forget that 50/11 is still a big gear. 10 or 15 yrs ago everyone "got by" with a 12t top and prior to that a 13t. 53/12 is smaller than a 50/11.

Nope... not at all forgotten.

54/42 front, 13/21 rear. Hills, mountains, valleys, whatever. I think I did have a 12T freewheel somewhere, but they were hard to find, and I had too many problems with skipping so I had to take it off.

I did a LOT of riding pegged in my top gear. Ok, never one for high cadence.

So, yes, it isn't bad to get a little lower gearing, especially as I've gained a bunch of years, and a few pounds. But, it is also nice to get that top end gearing that I was missing all those years.

CliffordK 08-08-18 12:21 AM


Originally Posted by merlinextraligh (Post 20494108)
Pretty certain, Tour de France Riders in the 1970's were riding at speeds, the average BF poster only dreams about.

The broader point to all of this is that people often want to point to an equipment limit that's holding them back, and correspondingly a technical magic talisman.

Where in most cases, the answer lies with fitness, technique and savvy, much more than equipment.

I do find my cadence naturally creeping up the more I ride. :mad: :giver:

And, I don't drop into my highest gears all the time. But, I do some of the time.

Likewise, I don't hit the lowest gears very often either.

Do I need the high gears? Well, I'm not sure. But, if I'm going to upgrade my bike from 5x2 to 11x2 (or 12x2), then I might as well put some of those extra gears at the top end.

colnago62 08-08-18 10:37 AM

I have known a few riders who have ridden big gears and were competitive at the National level. They are few and far between. Ulrich rode big gears. Never beat Lance in The Tour, but won Olympic gold and some Rainbow stripes. It is not life or death. Ride big gears or small and have fun out there.

redlude97 08-08-18 12:47 PM


Originally Posted by jitteringjr (Post 20494446)


The same logic applies at the other end, spinning a 34/28 at 79 rpm will save your legs while mashing a 36/28 at 75 rpm will send you to an early grave. Or so the compact fans would have us believe.

Which is why I ride 50/36. Super fast shifting and not as much of a difference on either end. But I haven't seen that argument made in this thread at all, and there are differences on the low end where you are more likely to be at your threshold power or anaerobic where the RPM differences there matter more than at the top end where sitting in is usually below threshold power.

seypat 08-08-18 09:11 PM

I ride a road triple. You get the old school 52/42 which is great for most riding. You also get a 3rd granny just in case. With the triple you can also skew your gearing high or low. One ride each year the front combo is a 50/36/28 compact/mid compact triple. I am only the 50 for about 20 miles out of a 100 on that ride.


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