low gearing for hills
#1
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low gearing for hills
So recently I have taken by casual bike riding to a different level, longer more challenging rides as well as using my bike for transport. It is a hardtail mountain bike. In Coming months I will purchase a mid level road bike. It has standard gearing, compact with a 32 cassette.
The lowest gearing on my mountain bike is 22 chainring with a 32 cassette, there is a 10% gradient hill that I always ride up, and the only way I can is by using the low gear.
To put in perspective
My mountain bike gearing is 0.69
The road bike gearing is 1.06
That is a significant difference, now before anyone suggests, I have put my mountain bike into a 34 chain ring and a 32 cassete, to simulate the road bikes gearing, this makes the climb extremely difficult.
So my question is how do people climb these big hills with the standard gearing on a road bike, am I just really weak or will a road bike be that much easier on a climb.
The lowest gearing on my mountain bike is 22 chainring with a 32 cassette, there is a 10% gradient hill that I always ride up, and the only way I can is by using the low gear.
To put in perspective
My mountain bike gearing is 0.69
The road bike gearing is 1.06
That is a significant difference, now before anyone suggests, I have put my mountain bike into a 34 chain ring and a 32 cassete, to simulate the road bikes gearing, this makes the climb extremely difficult.
So my question is how do people climb these big hills with the standard gearing on a road bike, am I just really weak or will a road bike be that much easier on a climb.
#2
I have exact same setup as you said on my mtb (22/32) and my road bike (34/32). Yes it's a little harder with road bike but the weight difference and riding position sorting out that difference.
There is a local climb that i ride very often (%7 avg. 6.5km) and i'm 8 minutes faster with my road bike than my mtb.
My MTB is 13.5kg and my road bike is 8kg.
I even climbed it yesterday with mtb and sh*t was so cold my hands almost froze during descent.
There is a local climb that i ride very often (%7 avg. 6.5km) and i'm 8 minutes faster with my road bike than my mtb.
My MTB is 13.5kg and my road bike is 8kg.
I even climbed it yesterday with mtb and sh*t was so cold my hands almost froze during descent.
Last edited by Robius; 12-04-15 at 02:59 AM.
#4
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[QUOTE=Robius;18364954
There is a local climb that i ride very often (%7 avg. 6.5km) and i'm 8 minutes faster with my road bike than my mtb.
My MTB is 13.5kg and my road bike is 8kg.
[/QUOTE]
This sounds promising as the weight difference of my bike now and my soon to be new road bike are about the same.
Thanks for your response.
There is a local climb that i ride very often (%7 avg. 6.5km) and i'm 8 minutes faster with my road bike than my mtb.
My MTB is 13.5kg and my road bike is 8kg.
[/QUOTE]
This sounds promising as the weight difference of my bike now and my soon to be new road bike are about the same.
Thanks for your response.
#5
There will be discussions about spinning vs standing.
I tend to stand up and gain power with cleats attached to the pedals and pulling up on hill climbs. My power drops off a lot with simple "flats". I'll hit short segments with up to about 15% using 2:1 gearing.
I tend to stand up and gain power with cleats attached to the pedals and pulling up on hill climbs. My power drops off a lot with simple "flats". I'll hit short segments with up to about 15% using 2:1 gearing.
#6
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Road bike has a bit greater wheel diameter than a 26" wheel MTB. So 34/32 on the road bike and MTB will not be the same gear ratio (in gear inches). The road bike gearing will be "harder", or "faster" with the same chainring combination.
Gearing explained:
Bicycle gear ratios - speeds, gear inches
If your MTB has a shock absorber fork that isn't locked out, then climbing with a road bike that has a stiff fork will be probably manageable - because bouncing of the shock absorber drains a lot of effort put into pedalling, making climbing harder.
If your MTB has a fork with a lockout, or a stiff fork, then climbing with a lot faster road gearing will be harder - in spite of a few kg lighter bicycle. You are climbing with rider+bicycle+luggage weight. Even a 4 kg lighter bicycle is just about 5% decrease in overall weight.
Gearing explained:
Bicycle gear ratios - speeds, gear inches
If your MTB has a shock absorber fork that isn't locked out, then climbing with a road bike that has a stiff fork will be probably manageable - because bouncing of the shock absorber drains a lot of effort put into pedalling, making climbing harder.
If your MTB has a fork with a lockout, or a stiff fork, then climbing with a lot faster road gearing will be harder - in spite of a few kg lighter bicycle. You are climbing with rider+bicycle+luggage weight. Even a 4 kg lighter bicycle is just about 5% decrease in overall weight.
#7
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[QUOTE=Slaninar;18364996 The road bike gearing will be "harder", or "faster" with the same chainring combination.
.[/QUOTE]
Really, I thought with the 9.42 inches more in one wheel revolution (from the 29 inch Road bike wheel compared to the 26 inch MTB wheel), you would gain this distance for "free".
.[/QUOTE]
Really, I thought with the 9.42 inches more in one wheel revolution (from the 29 inch Road bike wheel compared to the 26 inch MTB wheel), you would gain this distance for "free".
#9
Yes, because rolling resistance. Given the same gear-inches and the same slope, a smooth paved road is significantly easier to climb with slick tires than a lumpy dirt trail with knobbies.
#10
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To the OP, if you know you need easier gearing try to find a road bike with a triple (plenty still out there) and the same cassette (32T large cog). You can swap the 30T small ring on the triple for a 28, 26, or even 24T chainring to get all the help you need. Yes, climbing is easier on a road bike than a MTB but you are still fighting gravity and most of that fight is against your own body weight. Walking sucks and long distance riding is fun. When you are spent at the end of a long ride, you'll be happy you have a few extra low gears, even if you rarely ever need them.
#11
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Hardly. How can anyone use a 22-32 on a MTB then? I've done just that climbing steep hills on the road (in the snow) and that was definitely faster than walking.
To the OP, if you know you need easier gearing try to find a road bike with a triple (plenty still out there) and the same cassette (32T large cog). You can swap the 30T small ring on the triple for a 28, 26, or even 24T chainring to get all the help you need. Yes, climbing is easier on a road bike than a MTB but you are still fighting gravity and most of that fight is against your own body weight. Walking sucks and long distance riding is fun. When you are spent at the end of a long ride, you'll be happy you have a few extra low gears, even if you rarely ever need them.
To the OP, if you know you need easier gearing try to find a road bike with a triple (plenty still out there) and the same cassette (32T large cog). You can swap the 30T small ring on the triple for a 28, 26, or even 24T chainring to get all the help you need. Yes, climbing is easier on a road bike than a MTB but you are still fighting gravity and most of that fight is against your own body weight. Walking sucks and long distance riding is fun. When you are spent at the end of a long ride, you'll be happy you have a few extra low gears, even if you rarely ever need them.
#12
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You might think about buying a frame and building up a bike with the gearing you want. There are nice "touring" triples with a 26 small ring. Combine with a 32 or 34 mtb rear setup and you would probably have plenty of gear, both directions. Would require a little more thought than a off the shelf bike.
#13
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That's great. I'll continue to enjoy it when I get the opportunity.
#14
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There are some real limitations regarding triples that should be kept in mind. None of the "top" Shimano groups (DA, Ultegra, 105) are currently sold in a triple configuration. That means that in order to shift a triple with any of these groups will require an entirely different shifting option (dual action levers are not available in "recent" groups* for triples). That's a practical consideration to keep in mind for anyone in the market for a new bike and desiring a triple in the front.
* Tiagra and Sora continue to be available as a triple.
* Tiagra and Sora continue to be available as a triple.
Last edited by cale; 12-04-15 at 07:03 AM. Reason: add clarity, grammar
#15
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* I just don't want you to get hurt. How's the braking in the snow? I always thought, as a boy, that the braking sucked. Haha
#16
I think you will be fine. I had the same fear when I first got started with road cycling, I even got a triple chainring. Ended up not even using the small ring and now I'm just carrying the extra weight. -.-
#17
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There are some real limitations regarding triples that should be kept in mind. None of the "top" Shimano groups (DA, Ultegra, 105) is currently sold in a triple configuration. That means that in order to shift a triple with any of these groups will require an entirely different shifting option (dual action levers are not available in "recent" groups for triples). That's a practical consideration to keep in mind for anyone in the market for a new bike and desiring a triple in the front.
#18
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On a road bike anyway.. a 34/32 combo at a 60rpm cadence would be the same as walking a 12minute/mile pace. The 22/32 would be equivalent at same RPM as a 19-minute/mile pace. I think the gist of the argument is that on a paved road, it's not too difficult to walk an eg. 12-minute mile, while walking up singletrack at a 19-minute/mile pace might be about the same difficulty level.
#19
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I don't mean to suggest that compact gearing is equivalent to a triple road setup but I am surprised to hear suggestions that a triple be combined with a cassette having a 32 low or being dropped below 30T in the front. These gearing combinations, the ones that surprise me, will create a spread of large jumps. Compact doubles get away with the 11-32 cassette range by accessing a greater than average number of cogs in the back.
When I assembled my Kuota, I used Ultegra 6700 with a triple (52/42/30) and 12-25 10-speed cassette (12,13,14,15,16,17,19,21,23,25). The cogs are fairly evenly spaced with 23 and 25 as climbing gears. With a low gear of 31.5 gear inches (30X25), it is just slightly higher that the 27.9 gear inches available on the compact (34X32). On both bikes the intent is the same, to provide a group of closely spaced gears from which to choose a spinning gear. Touring gears typically offer a big range of gears but at the cost of 1 or more of the spinning gears.
When I assembled my Kuota, I used Ultegra 6700 with a triple (52/42/30) and 12-25 10-speed cassette (12,13,14,15,16,17,19,21,23,25). The cogs are fairly evenly spaced with 23 and 25 as climbing gears. With a low gear of 31.5 gear inches (30X25), it is just slightly higher that the 27.9 gear inches available on the compact (34X32). On both bikes the intent is the same, to provide a group of closely spaced gears from which to choose a spinning gear. Touring gears typically offer a big range of gears but at the cost of 1 or more of the spinning gears.
Last edited by cale; 12-04-15 at 07:37 AM. Reason: grammar
#20
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* I'm not sure I agree with this. There's a point of no return on gearing. When spinning is actually more work than walking. I'd keep the set up light and just grind over those steep grades. Frankly, grinding over grades is about what "racing" (OP's mid-level road bike) bikes were designed to do. Agreed, touring gears offer the ability to haul considerable weight up steep grades but wasn't intended as a road bike alternative. (Not that it couldn't be used that way.)
Perhaps you may prefer to push a bike up a steep grade, but I'd rather keep pedaling. Easier on the ego if nothing else.
#21
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1. I have a triple chain-set on my Sora-equipped road bike. It's lowest gear is 30-28. (I don't do math, but i'd guess that a 34-32 is similar to 30-28). I ride in group rides with people who mostly have compact, or even full-sized chain-sets...on down-hills & flats a lot of them are faster than me. On climbs it evens out a bit, and they are envying my low gearing. (of course, these climbs are not bad...6-7% over 1-2 miles each.
2. I have another short training hill that I use on my own: 10-12% average over .4 miles. I definitely use my lowest gear here, and am glad to have it. I would have to get significantly more fit to be convinced to move to a double compact (34 small ring with 28 cassette). It is a bit of work, but I don't feel any need for, say another 20 tooth difference so I can spin like crazy. If I ease off a bit and just accept that I'm going slow, I'm fine.
3. I moved to this bike from a hybrid that was 5lbs heavier, but had a 28 small chain-ring with a 28 big gear in the back. So not a huge difference...but the road bike is way faster and easier up the hills.
4. Braking on the snow is the BEST PART about winter riding, if I remember my childhood and teen years correctly! Great fun to get up to full speed and slam on the brakes!
2. I have another short training hill that I use on my own: 10-12% average over .4 miles. I definitely use my lowest gear here, and am glad to have it. I would have to get significantly more fit to be convinced to move to a double compact (34 small ring with 28 cassette). It is a bit of work, but I don't feel any need for, say another 20 tooth difference so I can spin like crazy. If I ease off a bit and just accept that I'm going slow, I'm fine.
3. I moved to this bike from a hybrid that was 5lbs heavier, but had a 28 small chain-ring with a 28 big gear in the back. So not a huge difference...but the road bike is way faster and easier up the hills.
4. Braking on the snow is the BEST PART about winter riding, if I remember my childhood and teen years correctly! Great fun to get up to full speed and slam on the brakes!
#22
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From: Wilmington, DE
Bikes: 2016 Hong Fu FM-079-F, 1984 Trek 660, 2005 Iron Horse Warrior Expert, 2009 Pedal Force CX1, 2016 Islabikes Beinn 20 (son's)
There are some real limitations regarding triples that should be kept in mind. None of the "top" Shimano groups (DA, Ultegra, 105) are currently sold in a triple configuration. That means that in order to shift a triple with any of these groups will require an entirely different shifting option (dual action levers are not available in "recent" groups* for triples). That's a practical consideration to keep in mind for anyone in the market for a new bike and desiring a triple in the front.
* Tiagra and Sora continue to be available as a triple.
* Tiagra and Sora continue to be available as a triple.
Campy Athena is also available as a triple group: Campagnolo 2015 Athena Black 11 Spd Triple Groupset at Ribble Cycles
#23
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#24
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There's walking and then there's walking.
On a road bike anyway.. a 34/32 combo at a 60rpm cadence would be the same as walking a 12minute/mile pace. The 22/32 would be equivalent at same RPM as a 19-minute/mile pace. I think the gist of the argument is that on a paved road, it's not too difficult to walk an eg. 12-minute mile, while walking up singletrack at a 19-minute/mile pace might be about the same difficulty level.
On a road bike anyway.. a 34/32 combo at a 60rpm cadence would be the same as walking a 12minute/mile pace. The 22/32 would be equivalent at same RPM as a 19-minute/mile pace. I think the gist of the argument is that on a paved road, it's not too difficult to walk an eg. 12-minute mile, while walking up singletrack at a 19-minute/mile pace might be about the same difficulty level.
#25
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Claris, Sora, and Tiagra all offer triples and all use the same dual shift the same way as 105, Ultegra, and Dura Ace. Nothing wrong with any of those groups, unless you 'need' to spend at the top.
Campy Athena is also available as a triple group: Campagnolo 2015 Athena Black 11 Spd Triple Groupset at Ribble Cycles
Campy Athena is also available as a triple group: Campagnolo 2015 Athena Black 11 Spd Triple Groupset at Ribble Cycles
The other side of the equation is marketing, where new road bikes are almost exclusively sold with compact doubles. The trend severely limits one's "out of the box" choices of either gearing and/or frame.







