Questions tagged [gears]

Gears in the drivetrain of a bike.

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1answer
183 views

Scott S30 road bike 11speed with 10 speed compatibility

I have a Scott S30 bike currently running a shimano 105 2x10 speed 50-34 crankset, shimano 105 10 speed front shifter and 10 speed cassete and chain. I have a new crank that i want to install, the ...
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1answer
81 views

The spring in my front dérailleur is jammed

My front derailleur is jammed by dirt (grease + fine dust), because of this the gear doesn't shift perfectly and chain is thrown off the cog. The spring is a bit unreachable because the derailleur arm ...
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0answers
99 views

How can I prevent “chain suck”? [duplicate]

I know what the above is: when your chain bunches when you change gears & the bunch runs through the front derailleur and wrenches it. This damage is pretty much irreparable, and has cost me far ...
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2answers
3k views

Is it possible to upgrade a 6 speed mountain bike to 7 or 8 speed?

I ride a Hero Sprint, MTB, with 6 gears in rear and 3 in the front. I am thinking about upgrading my 6 gears to something like 7 or 8. Is it possible, if yes, how much does it cost, and what are the ...
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1answer
149 views

Making my dream bike come true [closed]

my name is Benjamin and for quite some time now i have been riding my bicycle to college and other places. The bike i have now is only very simple but has saved as a great alternative for transport ...
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4answers
792 views

Hypothetical 1x10 simplification to 1x3 or 1x5

This is a hypothetical question that will help viewers (including myself) better understand gears and their limitations. Suppose someone sees a bike they like at a local bikeshop and it just happens ...
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4answers
252 views

Is not changing/shifting gears much bad when riding around?

I usually would set the gear to one level and leave it at that if I felt comfortable -- however, I just heard of someone changing gears on stops and whatnot to help with the initial inertia from full ...
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1answer
53 views

Can the gears on an electric towne 8 be changed to higher [closed]

Wife bought a Towne 8 Electric bike. Can the gears be exchanged for higher ratio
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2answers
62 views

How much to get a new derailleur and gear shifters and hooked up at a shop? [closed]

I have no derailleur and cheap grip shifters on my schwinn pathway want to get new ones
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2answers
129 views

The rear gears(Shifter) are stuck on 7 [closed]

So while I was taking my bicycle out of the elevator, it closes its doors(The elevator does not have sensors rather it has the mechanism which keeps the door open if you push a flap between the inner ...
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2answers
149 views

Gear slipping in gear 24

I use my bike everyday to commute and recently I've noticed that when in gear 24 my bike seems to slip from time to time as though the chain has "lost the gear" and then finds it again. I haven't ...
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1answer
7k views

Specific 10 speed chain models that work well on 9 speed Shimano rear drivetrains

I maintain several 9-speed (rear cassette) road bikes (Giant OCR 1/2/3, Tiagra and 105 from 2000-ish era) and one 10-speed rear cassette 105 road bike, made in 2007. I'm trying to find out if I can ...
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2answers
804 views

Using only 7 speeds of an 8 speed freewheel is ok?

I currently have a 7 speed Shimano RD (rear derailleur) that is working perfectly with the stock 7 speed freewheel which is 14-28. Shimano has a MegaRange 7 speed freewheel that is 14-34 but the ...
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1answer
109 views

Intermitant noise

My merlin road bike makes an intermitant noise, like a high whirring, humming sound while I'm riding or coasting and than goes away. Sounds like its coming from the the drivetrain or geared hubs?
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4answers
223 views

Constant / maximum set load bike? Does it exist?

Does a bike exist such that you can program it with what load you desire and it will shift gears for you based on that load or maybe never exceed that load? For example, suppose an older person has ...
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2answers
335 views

How does a RD (rear derailleur) handle variable tooth gaps?

I am trying to better understand how a rear derailleur (RD) works. I can understand how the RD moves inward and outward but suppose someone changes several of their cogs on the cassette. Let's just ...
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1answer
93 views

How do I find gear info for my bike?

I'm wanting to calculate the gear ratios for a bike my dad gave me as a gift but I can't find it listed anywhere, nevermind being able to find a manual. Based on the stickers it's a Performance Cross ...
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1answer
246 views

Closely spaced nonoverlapping 36 (2x12x2) gears borrowing from music theory. Good idea?

I had an idea. Why not space gears on a bike the same as musical notes? For example, in music, if you start on a certain note (let's say C3), you need to go up 12 more half steps (notes) to get to ...
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1answer
214 views

Left side isolated granny gear, right side all other gears? Possible and practical? [closed]

To me, the left side on a bike that doesn't have a rear disc brake is being somewhat wasted. So how about this idea... on the right side have the normal gears but on the left side, have a ...
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1answer
213 views

Super close ratio high gears via double size sprockets… practical?

I am wondering why they use such small cogs on a bike. Problem with that is as you get down below about 15 teeth, you cannot get precise steps to the next gear. For example, you can go 15 to 14 or ...
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1answer
102 views

What is gear bicycle is it useful in countryside? [closed]

I want to know about multi gear cycle. My area is a flat surface. What's the major use of geared one vs. single speed bicycle?
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2answers
270 views

2 speed quad sprocket bike… do these exist? If not, why not? [closed]

I was wondering if they make a 2 speed bike with a design having 2 front sprockets (one on each side of the bottom bracket) and 2 rear sprockets such that there is some mechanism that can switch ...
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votes
1answer
511 views

Why don't we see this special progressive 3x5 gear setup being offered? [duplicate]

This question is not the same as the 36 gear post which used a combination of internal hub gears, cogs, and chainrings. This one is much simpler and much lower cost. Part of the problem of something ...

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