Am I suppose to change the speeds while pedaling? When do you know to change the speeds? It is a 20 speed bike, how do I know when to use speed 1 as opposed to speed 10...????
120037
how to change it depends on your bike. when changing speeds you MUST be pedaling. if you are not it messes up the gears (i learned that the hard way).  you want to use speed one when you are going uphill or the going is harder.  the high speeds are used when the land is flat and smooth or when you are going downhill. i hope this helps!
630316
Bicycles these days have things like index shifting, this develpment has made cycling much eazer for the beginer. Back in the old days, "the 70's", I had to learn to shift by feel. This led to a lot of looking down and back, while working the shifter levers," once rode head on into a parked car doing that, even the people who owned the car were laughing". So you have the advantage of this wonderful index shifting. When approaching a hill down shift as you feel your legs begin to bog down, with index shifting you can down shift 1 gear at a time untill you reach the top of the hill. As you become stronger you'll down shift less. What you want to do is keep a steady cadence," RPM of the cranks", and use the different gear ratios to fit the terrain.
386692
You can't tell what the top speed of the car will be. Not with that information anyways. You can take two of the same cars you just described, one with 200 hp and the other with 400, and the top speed could be the same. To find the top speed of the car you need more information with the main one being gearing. Change the gears in something, you can change the speed.
487622
it is indeed! I would encourage you to start slow and work your way up, best part is to compare your speed and distance to the last few days and keep going up, we have a stationary bike so can not compare but still find it enjoyable, good luck
39876
changing the final drive ratio won't hurt the car, if that is what you are asking. What you didn't specify ws, what engine/trans. you have, and the gear ratio now.\nGoing to a 3:73 from say a 2:91, or even a 3:08, 3:42 whatever will do 2 things. This will make your engine rpm rise quicker, and will result in a higher rpm at cruise speed while on the freeway. Will also decrease gas milage.\nIf you are looking for the quick take off at a light, gears will do it, but won't make your car any faster. Only top out sooner.\n\nEDIT: it does not take less work for a motor to turn the diff. with lower gears (yes lower. Higher numbers are lower) In fact, the motor is doing the same work, only faster. A set of higher numbered gears cause the engine to rev up quicker, that is it. Still uses the same power. The reason people go with a new gear is to increase performance off the line, by making the engine reach it's power band quicker. An engine does not develop peak power at ide or low rpm's.
97032
i too love that bike and want to buy ,well every mechanism has both advantages and dis advantages . well what matter is your taste if u like that bike ,in my oppinion dude just go for it
142791
Cycling is a fantastic sport. It keeps you fit without overstressing any part of your body, it gives you a cheap and effective form of transport and its a companionable way of seeing the World with your friends.\n\nSO: Don't be put off right at the beginning by making the wrong choice of bike!!!\n\nAlways buy the best bike you can afford. Go for a well known make - Cannondale, Trek, Specialised, Bianchi, Giant, Raleigh, Dawes etc.\n\nGo to a good bike shop and take their advice. They'll also fit the bike to you and give you the chance to try several different types until you find the one for you.\n\nAlso, go for good componentry (gears, pedals, saddle etc) - these make all the difference between a great riding experience and an irritating one that will put you off cycling forever.\n\nThink carefully about what you want - are you going to be cycling mainly on road or hurtling down forest tracks? Is it for town or for country, communting or long distance?\n\nYou should discuss your requirements with a good dealer.\n\nIn short: Don't buy online - find the best local dealer and buy from there.
385416
First of all, you need to disregard the person indicating that electrical or electrically assisted bikes are for lazy people.\n\nThen you would want to check out this site.\nhttp://www.bernsonev.com/wilderness-conversion-bl36-bike-conversion-kits-p-121.html\n\nI have converted my TREK R200 recumbent with 20 inch wheels with the BL36 kit with the 12AH sealed lead acid battery pack.  I was able to cut my 18 mile one way commute to work from 1:20 minutes to just under an hour.  I use this assisted ride to make it possible to commute more often.  You will work as hard or as little as you decide although 20 miles is the absolutely max range you will get with out significant pedaling.\nEssentially, it feels like riding on a tandem bicycle with a very strong stoker.
389036
Since you had a traumatic experience with riding bikes when you earlier tried it----Ride with a pro experienced rider with your OWN bike---better if its equipped with basics ( good brakes, platform pedals, use sneakers for quick dabs,a well fit helmet)----its best to ride where there is zero distractions ( pedestrians, joggers, baby kids on strollers)----make sure you learn with caution and when you accomplish your mission---RIDE THE WIND!
470900
I don't know exactly how fast it goes but, a YZ 85 is not for someone that doesn't have a lot of riding experience. Those bikes are race ready from the factory. Most people will do some tuning on them and try different things for racing. If your cousin is an experienced rider, I would say go for it. If not, I would be looking for something not quite so fast.
418385
Changing out your six speed cassette for an eight speed is doubtful without changing the hub-set. you may get away with adding one gear but two is doubtful, another thing too look at is the spacing of your chain-stays they too may not accept an eight speed hub-set without being stretched to the point of breaking. \n\nRemember every time you add a gear and a spacer for that gear you add approx. 1/8" in width to you cassette. Your six speed cassette should measure approx. 1-1/4" from inside to out an eight speed is approx 1-1/2" grab a tape measure and check.\n\nYour question states will I be able to transplant a 8 speed cassette straight onto the 6 speed freewheel?  That's also a no no as a freewheel is threaded onto the hub-set and a cassette uses a lock ring to secure it in place, again you would have to replace the hub-set to use a freewheel, they won't interchange.
398164
If a track bike had brakes it is no longer a track bike.\n\nThis type of bike is the barest of things... no gears, no brakes. It is very light and very strong. It is direct drive- that means when the rear wheel moves, the crank moves right with it- kind of like the smallest of toddler bikes.\n\nA professional rider can accelerate from 0 to more than 80km/h in less than 2 seconds which is among the fastest accelerating things on the face of the earth. It is quite a sight to see!\n\nRiders tend to be extremely powerful, and the stresses placed on the bikes are extreme. I am amazed that more of these bikes don't simply disintegrate under them.
368360
Not all mountain bikers do that.  Watch a pro sometime.  Some mountain bikers prefer to mash, but some prefer to spin.  I aim to spin.  I shift down, keep my cadence as steady as possible and keep my momentum up.  However, occasionally, due to a technical feature, a turn or a super steep hill, I end up mashing a bit more.  \n\nYou will be much more efficient if you spin, however, occasionally, being able to mash up a short steep hill can be beneficial.
522679
If I was to do an upgrade I'd start with Hub-sets and wheels first, that will give you your biggest gain. From there I'd change out my bottom bracket and go with a Shimano BB6500 and replace the Bontrager crank-set with an Ultegra. Then think about the derailleurs, chains and so on,\nIf you bought the bike this year I really don't know why you want the upgrade so soon.
116433
It's a coached workout on exercise bikes.  It sounds silly, but it's pretty tough and can be really helpful in improving your fitness and biking efficiency.\n\nBasically, classes tend to be about an hour and a half with a warm up of focusing on technique (making sure that you are using the entire circular motion to drive the bike instead of just pushing down)  and then you will go through timed drills for strength or endurance.
535774
Technically your bike has 21 gears--the number of rings on the front times the number of rings on your cassette in the back.  However, you don't really have 21 usable different gears.  This is because:\n\n1) Depending on how many teeth are on your chainrings (front rings, you have 3) and your cassette (7 rings on back), you may have some gears that repeat.  It is all about the ratio between the front ring and the back ring the chain is on.  For example, let's say your middle front ring has 38 teeth and one of the rings on your cassette in the back has 19 teeth, you have a ratio of 2 to 1 when your chain is on these two rings.  If your smallest ring in the front is 28 teeth and your smallest ring in the back is 14, you again have a ratio of 2 to 1, so these gears are actually the same.  \n\n2) There are also certain gears you should not use.  You should avoid cross-chaining--being in smallest ring in front (closest to the bike, on the inside) and the smallest ring in back (farthest away from the bike) or largest in front (farthest away from bike) and largest in back (closest to the bike).  Either of these gears, or close to them, puts a lot of stress on your chain because it torques it sideways.  This will cause additional wear on the chain and shorten the life of it.  Most bikes will allow you to do this because the chain is put at a length to allow for it, but it will also likely cause your chain to rub somewhere and also possibly make your bike not stay in gear very well.  \n\nHowever, these days, rather than multiplying the number of front and back rings to get speeds, bikes are now often referred to by the number of rings on the chain ring and cassette separately.  You ride a 3 by 7 (3x7).  A double road bike with a 10 speed cassette (typical of today's high end road bike) is a 2x10.  A more touring oriented road bike often has a triple chainring and is likely to be a 3x9 or 3x10.  A fairly typical mountain bike is a 3x9, but there are a lot of 2x9 or 3x8s out there too.
619751
dude, XTR is up to 9 speeds on the rear cassette. 7 speed was like 10 years ago, litterally.  \n\nsure, you can use 9 sp cranks with 6 speed cassette, just use the 6 speed chain (6,7,8 speed chains are the same width) it just when you go 9 and 10 speed, the chains get narrower.  there will be some side play on the front chain rings, but it shouldnt effect performance too much, especially since old 6 speed stuff is pretty choppy anyways.