Gears in the drivetrain of a bike.

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5
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4answers
25k views

Heavier Thicker Chains and Gears for Winter due to Salt?

I have two bikes: one having gear-things outside and one with inner-hub. The gear-outside-bike has suffered a lot due to the salt during this winter, the other hilariously looks like a new one. I ...
5
votes
2answers
4k views

Is it practical to replace two sprockets on a cassette?

My bike has 53/39T chainrings and a cassette with 12,13,14,15,17,19,21,23,25 sprockets, but I like to ride up steep mountain roads. Is it possible (without great expense) to replace two sprockets to ...
5
votes
1answer
2k views

How can I tell if my bike has a freewheel or a cassette?

I bought a Frankenbike off Craigslist. It's a Specialized Rockhopper of unknown year, converted to a commuter, with shocks up front and V-brakes. I love this weird little bike and want to put a ...
5
votes
2answers
855 views

Do you need to lubricate gears after cleaning gears and chain?

I just cleaned my gears and chain with a biodegradable degreaser. I'm going to lubricate my chain. Do I also need to lubricate the gears or do I just pedal and make sure that I hit all gears? Will the ...
5
votes
2answers
1k views

Pros and cons of gears in bottom bracket vs. rear hub? [duplicate]

Since 6 years, I am the happy user of a bicycle with a Rohloff internal hub gear. German quality squeezing 14 gears and a 526% gear range into the rear hub. Less known is the newer and equally ...
5
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4answers
195 views

The shifter for the front derailleur is “soft” in my vintage bike

So I bought a used vintage bike. I just love the bike and it's awesome. However it came with one problem: gears problems. First of all I have very little experience with bike, especially gears ...
5
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4answers
2k views

Wrong bike gear

Recently I discovered that my bike's back gears are shifted two gears off constantly. So when it says I'm in 1st gear I'm actually in 3rd and when it says I'm in 2nd I'm actually in 4th. The shifter ...
5
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2answers
210 views

How do I change the granny gear on a cheap Walmart mountain bike?

I have a cheap ($100) 26" Walmart mountain bike (Hyper Summit) that has a triple chainring (24,34,42). It appears there is no easy way to remove the granny gear since it has what looks like some type ...
5
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2answers
267 views

What's the deal with the axle of my wheels? (or, why is one gear so much smaller than the other?)

I want to put a smaller set of gears on my bike, but looking at the wheel I see that I already have the smallest gear for my axle. Comparing it to another wheel, I found that the other wheel has a ...
5
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3answers
430 views

What happens when a bike has not had maintenance for a long time?

I recently traded my Kent BMX bike I got from Wal-Mart: for a Ross road bike ). My friend tells me the bike sat in his back yard collecting rust, I see it has rust on the chain, the gears, brake ...
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4answers
5k views

How fast can my bike go?

I have an old mountain bike and want to change to a Pashley style girlie bike. I use my bike to go to the shops, pop to places and go out and about with my dog running along side. I find the seating ...
5
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3answers
444 views

rear shifter lever gets stuck when shifting gears

All the shifting was working smoothly until my bike fell off to the ground (edit1: to my right side hitting the right side of the bike) with me couple days back. Now after about a week when I took my ...
5
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2answers
147 views

Problems with front derailleur shifting on an inexpensive bike

I bought a cheapish bike (Nakamura) couple of years ago, and it generally serves me well. Main problem that I have is that shifting gears, especially front gears often gets out of tune. After only a ...
5
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1answer
2k views

Can I add gears on a bmx?

Just asking if it is possible. My friend added gears, but won't it damage the look or my cycle?
5
votes
1answer
157 views

Back wheel started moving backwards when pedalling backwards

I have a 10 year old cheap 21 speed mountain bike that I have only ever done basic maintenance on (replacing inner tubes, tyres, brake pads, lubricating chain etc). I have just noticed that when I ...
5
votes
1answer
69 views

Can you have too many in line barrel adjusters?

Just replacing the shifters on my bike. It had STI shifters and I'm putting thumb shifters on, the shifters have built in barrel adjusters. The bike also came with barrel adjusters on the down tube, ...
5
votes
1answer
745 views

Number of gears for a racer

I am looking to upgrade my racer, I currently have a Bottecchia racer from the mid-80s and it has 14 gears. While looking around for newer racers I noticed that a number of them had 20 gears while ...
5
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2answers
1k views

(Automatic Bike Project) amount of torque required to change gears?

I am planning to build an electronically controlled automatic bike transmission for my senior design project. I'm personally more of an electrical guy, so dealing with the mechanics is somewhat new to ...
5
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2answers
127 views

Gears on a singlespeed frame

I'm building a new bike and have ridden a frame which feels (and looks) amazing. I'm dead set on buying it but it's a single speed frame. Ideally I would like gears at the rear. It has a dropout which ...
4
votes
4answers
3k views

Why can't the gear ratio be something like 100:1? Is it practically possible?

I am planning to develop a bicycle on my own for a competition. But the main requirement of it is that it must be able to develop a maximum speed. If I am able to cast the sprockets with gear ratio ...
4
votes
4answers
9k views

Why are there almost no bikes with a single chainring?

Bikes with two or three chainrings are the norm, and then there are singlespeeds, but except for kids' bikes, you see almost no stock bikes with a single chainring in front but a cassette and ...
4
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4answers
10k views

Type of cycle for losing weight and staying fit for a beginner [closed]

Over a year ago I was diagnosed with a collapsed arch in my left foot and despite trying many times I have not been able to get back on the treadmill. I have been thinking of getting a bicycle to ...
4
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3answers
85 views

Adding gears to a childs trike pickle pashley

I'd like to add gears to my disabled son's pickle pashley tricycle. I have made a start by adding a 5 speed casette, but I'm stuck trying to work out how to shift the gears as there is no where to ...
4
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3answers
10k views

Adivce on what to do next with crunching / slipping gears

About two weeks ago I took my bike to the local bike shop to get serviced. It was previously slipping gears under load and at the end I couldn't use the lowest gear going up hill it would just slip ...
4
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1answer
90 views

Gear cables replacement - inline barrel adjusters

I'm in the process of ordering replacement gear cables for my road bike which has 105-5800 groupset. My existing cables have inline barrel adjusters and I was wondering: Are the inline barrel ...
4
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3answers
275 views

Shifting can't keep up with my acceleration

I noticed that when I really give it hell after stopping or riding slow (I do that all the time on commute), I have to shift two gears at a time in the lower gears, to keep up with my acceleration. I ...
4
votes
2answers
311 views

When going up hills, my gears drop 2 to 3 slots. Is this my cable tension?

I own an old bike, with the old style gear shifters (levers). I have been trying to get the cable tension right. However, it seems to be getting worse. Whenever I am on a slight incline or just in a ...
4
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2answers
140 views

Poor shifting in dense fog?

I cleaned up my bike yesterday after a particularly wet and muddy week, wiped the oil off the chain, applied a fresh batch, took it for a spin and found no issues whatever with the shifting (I go ...
4
votes
1answer
2k views

Why doesnt my chain fit on my cog?

I ride a fixed gear bike and I wanted to change the rear wheel, I'm sort of new to all the bike knowledge but i couldn't find an answer to this. i ride 46 x 18, i don't know if its good or bad, i can ...
4
votes
2answers
471 views

Are there any tricks or pitfalls in timing gear changes?

I have noticed that my bike sometimes changes gears incredibly smoothly—quietly, quickly, very little 'jolt' through my pedals—while other times I get a rough, clunky change. I'm wondering if there's ...
4
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2answers
2k views

Mounting a 7-Speed Cassette on an 8/9 speed hub

I asked an earlier question regarding putting modern road wheels on my old steel frame. After clarifying a few things the main issue to me is the number of gears on the freehub. (The freehub I'm ...
4
votes
3answers
2k views

Efficient gear shifting

I've recent purchased a road bike bit of a classic with the downtube shifters, lugged steel frame etc etc. Before I mainly road my fixie, thou I do have another geared bike, but it left a bit to ...
4
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1answer
806 views

Is my front derailleur angled straight?

I am attempting to adjust my front gears and have also been following a video to adjust the high/low position of my front derailleur. The issue I am having is that the low adjustment is no where near ...
4
votes
1answer
414 views

Is it a good idea to switch to hub gear?

I have a Firefox Roadrunner Pro. I wanted to know if it was a good idea to install an internal hub gear on it. I want to install it to reduce dust accumulation and oiling and to simplify the ...
4
votes
4answers
6k views

What cassete do I need to run with a compact crankset (50/36), to equal the same gearing as running a standard crankset (53/39) with a 11-28 cassete?

Every new bike in my price range comes with a compact crankset, which I want for climbing, but I race and I need to keep the same top speed that I've had for sprinting and descending (I live in the ...
4
votes
1answer
178 views

Replaced tyre and tube, now the rear gears will not stop

Just put on a tyre and innertube, fits perfectly, but now when I stop pedalling the gears at the back keep moving so the chain just sags down so much that it hits the wheel etc. Any ideas on how to ...
4
votes
2answers
203 views

Switching from 3x9 Gears to Cheaper Ones?

Alert I am unsure of the right terminology for gear-wheel but I mean the round things near pedals such as 3x9 or typically with 3x7 (3 front, 7 back) mix in commuting bikes. My current gears are 3x9 ...
4
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1answer
5k views

What are the advantage of the different gear shifters

I have just buy for the first time a road bike (Boardman Team Carbon) after long years on hybrids bike and unfortunately due of a injury I didn't have much time to experience with it. The bike has a ...
4
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2answers
871 views

How should I select front and rear gears?

Just bought a Falcon Interceptor bike with Shimano gears - whatever that means. I've had bikes in the past but only those with one set of gears for the rear wheel. What's the need for front and rear ...
4
votes
3answers
21k views

Can I fit a cassette with a larger range with my Shimano Tiagra 10-speed ( GS-4600) derailleur?

I'm currently running a 2x10 shimano tiagra 10-speed drivetrain with a 50/34 compact crankset, a 12-30 rear cassette, and a Shimano Tiagra GS-4600 derailleur (that's medium cage aka road long cage) on ...
4
votes
1answer
45 views

Using 9 speed Deore front shifter with 10 speed Ultegra front Deraileur

I am trying to build a bike out of all the spare parts I have in my garage. I found a 3x9 Deore front shifter, 3x10 Ultegra front d and crankset. Would they work together? By the way, I am building a ...
4
votes
1answer
3k views

Why is 2nd largest rear cog making clicking noise?

I have constant clicking noise from the 2nd largest rear cog on my cycle. It starts as soon as I shift into the 2nd gear either from 1st or 3rd gear. I have checked the following things - 1. Cable ...
4
votes
2answers
1k views

Weed-eater bike conversion - Safe rpm?

I've recently started working on retrofitting an old bike with an even older weed-eater engine. The engine will sit atop a bicycle rack and directly drive the rear wheel tire (engine has a built-in ...
4
votes
1answer
594 views

Direct Mount with top and bottom swing?

I want to buy a new frame that supports Direct Mount. Now I read that Bottom Swing is preferable for hardtails. At the same time, it was also mentioned that Bottom Swing is mounted higher onto the ...
4
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3answers
99 views

cross chaining 18 speed (2 * 9) bike

I have a 18 speed bike. There are two chain rings in the front and 9 cogs at the back. I am new to cycling and I wish to know which gear combinations should I avoid to prolong the life of the chain ...
3
votes
4answers
415 views

Does never using the easy front gear give a better workout?

I have a road bike with a 52/36 crankset. I make it a point to never use the easy gear because I think that it gives me a better workout when climbing hills. Another reason I don't use it is because ...
3
votes
8answers
6k views

How to position a bike for work without a stand

I want to tweak my gears, from time to time: Adjust my front and rear derailleur limits, see if the shifts are smooth, make small adjustments on the cable tension, and so on. Is there any way to get ...
3
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2answers
3k views

What's the shortest / easiest “granny gear” available?

What's the range on granny gears - the innermost, smallest front chainring?
3
votes
4answers
474 views

2,600km on an 8 speed bike?

I am about to go off on a 2,600km tour from Austia through Italy, finish in Malta. I originally planned to do this solo trip on my Giant Trance x2 full suspension but decided not to since it is too ...
3
votes
2answers
681 views

Make a 3-gear bike go easy on uphill

I want to see how can I make this 3-gear bike go easier on uphill. It has an internal gear hub. I don't know much about bikes but I'm thinking if I can merely replace the hub for one with 14 gears ...