Showing posts with label cycling. Show all posts
Showing posts with label cycling. Show all posts

Sunday, January 2, 2011

Q&A: Bicycle Seat Relief

While most cyclists do fine on normal, everyday bicycle seats, some people, like Nick here, suffer so badly they consider giving up biking, which is a shame. Fortunately, there are all kinds of seats to choose from, and even some very unique ones as I explain... 

Q: Hi Jim,
I'm coming to you almost as a last resort. My story is, I got into biking again because I liked it as a kid and my doctor said I needed to start exercising. (I can't walk or jog much cause my back's not so good.) So, I went out and got a basic mountain bike - nothing fancy - but something to ride around on that has a comfortable upright riding position. 

For a few months now, I've been getting out a couple of times a week and actually enjoying it except for one thing. My butt is killing me. And nothing I've tried seems to help. I go numb and get so sore I have to keep stopping and it's taking all the fun away. I tried switching to a wider, softer seat, but that didn't work. I think my seat is adjusted right too. I even bought some cycling shorts with the padding inside and even that didn't make the pain and numbness go away.

Is there any way to get a comfortable seat or do I have to find another type of exercise?
Nick

The Spongy Wonder (keep reading for details)
A: Sorry to hear about your saddle sores, Nick, but it's a common problem with many new or returning riders and something that can bother even pro riders sometimes. In fact of all the cycling inventions created since the first bike came along about 150 years ago, there have probably been more seats than anything else because yours is such a common complaint and always has been.

There's a lot to understand about seats and what causes saddle sores and how to prevent them and my extensive online bicycle seats guide should help you as it has many others in your shoes. For example, you said that you had tried a wider, softer, seat. But sometimes what's needed is a narrower, firmer saddle that provides more support and doesn't squish and get in the way so much. 

You also said you had tried cycling shorts but maybe no one told you that these special shorts are meant to be worn alone (without underwear) since the seams in underwear can press on nerves and cause numbness, and also chafe. And, even seat adjustment can be tricky. A little too high or low makes a big difference and if the seat is angled up or down that can cause problems too. Here's how to adjust a seat.

Any good bicycle shop will have an expert who can take a look at your bike's setup and your seat and tell you if they spot something wrong. And they should be happy to let you try different seats since there are so many types. Usually, as long as the seat is in new condition you can bring it back and trade it for another one until you find the one that feels right. Another way to test seats is to try the ones your riding friends like. Maybe they had problems and found one that works for them that you'll like too. And, the bike shop may be able to recommend a saddle based on what's not working for you now.

The Real Seat
But, let's say that all of these steps don't work, and you just can't find a seat that doesn't hurt you. What do you do then? I recommend trying non-standard seats, also called alternate or alternative seats. They're unique and can be a little hard to find so I provide a regularly updated list (I just added the Carbon Comfort Saddle this week) on my bicycle seats guide and I've provided a few examples here so you can see just how different they are.

Probably the most unconventional looking is the Real Seat. Kind of like putting the seat from a lawn chair on your bicycle, it provides a wide sling seat for comfort and support that feels a little like sitting on a playground swing.

Tip: If you switch to one of these alternate seats from a standard saddle, there's a learning curve. Riding on a regular seat you control the bike a good bit with your thighs holding and pushing on the front of the seat (the "nose"). 

But on alternate seats, you often sit more on top of the seat and there's usually no nose to use to control the bike, so you'll want to practice to get used to it.

The oldest alternate seat that I can remember is the Easy Seat (it also goes by the "Hobson seat.") I remember ads for this in the sixties (the name has changed over the years) and it's still selling strong all these years later.

It's a two-part seat, which is actually a very early design dating back to the 1890's. The idea is that if the seat is split in half, there won't be any pressure on your sensitive areas and each half can move with your pedaling motion unlike a standard seat that remains fixed in one place. 

The BiSaddle
The Easy Seat has two cupped and cushioned "pads" that can be adjusted sideways so that they're directly beneath your sit bones.

Tip: Since alternate seats can be expensive and you may have to order online, ask if they'll take the seat back if it doesn't work for you. If they won't do that, ask if there's a local bike shop that carries the seat so you can try it out. No? Maybe they sold one to someone in your town and that person will let you come check it out? You might make a new riding buddy that way and find a nice new seat.

Two other seats that use the two-part design are the BiSaddle that comes in men's and women's versions and can be fine-tuned to your exact sit-bone distance (photo), and the also adjustable-width Spongy Wonder (photo, top of page), which several readers have told me made their saddle woes go away.

See my list for more choices, and I hope my seat tips help you enjoy pain-free rides so you can continue cycling.

Jim

Friday, November 5, 2010

More Lights: Early Bicycle Lamps

To enlighten you a bit more, here are a few cool vintage bicycle light items from the early days. It's fun to think that even in the 1890's - years before automobiles were being mass produced, we wanted to ride at night and see and be seen. And, the vintage lights that illuminated the way via an elegant orange beam created by a burning wick, were as magnificent as the lovely bicycles that carried them.

Behold the 20th Century 1898 Model (note that they call it a "Driving Lamp," cyclists being the first drivers).
Next is the same model, but here they show an alluring nighttime riding scene depicting the powerful Model 1898, "splendid in its improvements," allowing the cyclist to make good use of the half of his cycling time that's dark.
These vintage lights were built to last and they're not that hard to find and quite collectible. Here's a Union Lamp Company William's Globe made around 1897 courtesy of Transport Collectors Auctions. The vents on the top let the heat escape, while the jewel-like glass reflectors provide some side visibility. For fast and easy on/off, the lights' sprung mounts slid over a simple bracket found on the front of most bicycles at the time. The lens is a heavy piece of glass and it's also the door opened to light the wick.

From the same auction site, here's a bedazzling Bridgeport Brass Search Light ornately decorated to be as delightful during daylight as it was brilliant in the moonlight.

And, to demonstrate that the genuine item is as splendid as the bicycle ad for it, here's the illustration for the light shown in the photo above:
Hope you enjoy these treasures from days gone by, and have fun on your nighttime rides!


Wednesday, November 3, 2010

It's Time: Lighten Up Your Bicycle!

1930's Colba light bicycle ad
Not that kind of lighten up your bicycle... I'm talking about lighten up, as in adding lights to your bike to be seen and stay safe now that the time's about to change and it's going to be dark earlier for a lot of us.

It's important because, unless you ride only on brightly lit city streets, you can be just about invisible to drivers if you're bicycling at night without lights. We're so narrow and small that they have a difficult time seeing us even when it's light out.

At night, if they're passing us from behind and we aren't using lights, they won't see us until the very last second - if we're lucky. And, they'll also pull out in front of us or turn across our path for the same reason. Both highly dangerous.

 If you ever get stuck biking home in the dark without lights remember that you can't be seen and do whatever you have to to stay safe. For example, riding on the sidewalk, if that's your only option and no one's using it. Cheap flashlights purchased at a convenience store and duct taped to your handlebars and seatpost will work in a pinch and be handy at home too.

Fortunately, with advances in bulb and battery technology, bike lights have improved in leaps and bounds since the cool Colba light in the ad here was state of the art. So there's no good reason not to equip your two-wheeler with lights. Any bicycle shop will have bright, easy-to-install headlight and taillight setups to keep you safe. In fact, most department stores carry them, too, though you won't get the guarantees, spare parts availability and installation help if you need it.

Planet Bike's Superflash taillight and Blaze headlight is a nice example I have on one of my bikes. Using bright and super long-lasting LEDs (light emitting diodes), standard batteries and easy mounting clips, these lights go on and off in a blink (so they won't get stolen if you lock your bike downtown) and are bright enough to be seen and see. (I especially like that the taillight comes with mounting clips for the seatpost and seatstay so you can always find a spot to install it.)

But there are loads of light makers and an endless variety of bicycle lighting systems at all price points, so shop around, ask friends you ride with what they use, but light your bike up soon so you can safely ride right through the season.

See you on the road,

Jim

Wednesday, October 27, 2010

Q&A: More noisy bicycles, checking cassette wear, too clean

Happy Halloween everyone! In this season of ghostly apparitions and things going bump in the night, here are a few Q and A's on chasing away bicycle gremlins. And, remember to save any Snickers bars you get while trick or treatin' - great ride food!

Q: Hi Jim,
Bike noises can be such puzzlers, so I was happy to find your webpage on them. I could relate to many of the noises. Here's one that had me stumped (still does, insofar as the exact mechanism goes).

I have a Gary Fisher HiFi-Plus mountain bike. I ride a lot and stay on top of general cleanup, as Boise's summer trails are dusty. After a couple of years, it developed a slight "click" or "tick" on most crank revolutions. Came from the bottom bracket/crank area. You could hear it but not feel it. I kept riding. With time, the single click grew to a couple of clicks - again, fairly regular with revolutions. With more time, these clicks merged into a close-spaced series that I would call a "c-r-r-r-reak". Almost the sound of something flexing. Usually took 10-15 minutes of riding to really develop. Of course, such stuff resonates through the whole frame and is annoying no end.

As this developed over a month's time, I suspected and tried everything - pedals, cranks, chainrings, chain, bearing bracket, frame cracks, etc. Check, tighten, clean, lube. Nothing helped. Other mechanic friends suggested everything I had already tried. Having admitted defeat, I dropped by the shop I bought the bike from, recounted the history, told them I wasn't going to give them the bike to puzzle over (I was going to fix this myself!), but had they ever run into this on this bike?

Almost without hesitation, the mechanic told me to to just disassemble the bottom bracket, clean it up, and put it back together. I protested, saying that I knew it was in/torqued to specs, etc. He said, "Trust me." I did.

Complete tear-down, wipe-down, lube and reassemble. Voila - no creak. Not for 2 years now. My explanation: somehow fine grit or something works its way into those fine threads, or the metal-to-metal/metal-to-plastic contact of bearing/bracket parts (or something) gets to where parts move against each other ever so slightly, generating the sound in the flexing or twisting.  What do you think?

Eric

Teflon tape can silence BB clicks and ticks
A: I’m glad your mechanic was able to give you such a sure fix, Eric. In a lot of cases I’ve seen, it is the BB – not always – but so frequently, that it never hurts to take out and reinstall the BB. On most cranksets these days it’s relatively simple to do this if you have a few basic tools, like Park Tool's BBT-9 cup tool for Shimano BBs. It used to be a much bigger job to do it right, but then BBs didn’t used to make noise so often either. Maybe it’s a trade off we all have to make to enjoy cartridge bearing, oversize, external cup BBs?

The bike I ride the most is a Litespeed Vortex road bike. It has an aluminum BB in a titanium frame. This combination tends to eventually creak, click, etc. A trick that works is wrapping plumber's Teflon tape around the BB cup threads during installation. This adds a layer of plastic in there and seems to give you several years before any noise returns. In fact, Jeff Pierce, the 3rd American to win a Tour de France stage (on his Litespeed Vortex), told me the mechanics used plumber's tape on the team bikes.

And, I think you’re right, that the parts in the BB are slightly loosening and that dirt/grit is getting in there and causing the noise. You might experiment with plumbers tape or a thicker lube, maybe an anti seize, or a Locktite even, to see if you could get a longer lasting seal that prevents the noise almost permanently.

It’s fun figuring this stuff out – if the noise doesn’t drive you crazy first!
Jim

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Q: Hi Jim,
I saw that you ride a Cervelo Soloist just like me, so I thought you'd be a good person to ask. This seems like it should be a simple question but... I've been asking around about how to tell if a 12-25 cassette should be replaced?

I need to replace my chain. If I don't replace the cassette at the same time, and it's bad, I run the risk of ruining the chain prematurely. If I replace the cassette and it's not bad, I'm just throwing out a good cassette (which happens to be a Shimano Ultegra model).

So, if I can know the signs of a bad cassette, I'm golden. Problem is, every bike shop I talk with tells me there is no way to really tell, and that I'm better off replacing the cassette. That's OK if you have deep pockets. I thought of comparing a new cassette directly with the old one, but is this really the only way?

Any suggestions you offer up will be greatly appreciated,

Bruce

A: What the shops are telling you is pretty accurate, Bruce, but there actually is a cassette-cog checking tool made by the German chain/hub company Rohloff, but I’ve never had a chance to try it – or even seen it anywhere. You can learn more about its use on their pdf instructions page and check out the illustration on the right. Here’s the page on it on their site.

It might be an interesting and helpful tool. I’m not sure having never used it, but I'll try to purchase one and give it a try.

Unfortunately, you can’t know if a cassette is worn out without checking it somehow. The changes to the cogs over time are so slight that you can't see the wear the way you can with the chainrings, which are made of aluminum and change shape more distinctly. But, it’s foolish to pay for a new cassette if your old one isn’t worn out. Also, unless it’s truly worn out, a cassette won’t hurt the new chain.

The standard way to check for cassette cog wear is to install the new chain (when the old one needs replacing), and then go for a test ride. While riding, you shift onto each cog, one at a time. On each cog, you stand up and push hard to feel if the chain runs smoothly and more importantly if it skips. Skipping makes a loud popping noise and you’ll almost crash if you’re not careful as the chain actually rides up and off the cog and skips forward. If you experience this, you know that the cog(s) that skip are worn out and the cassette needs to be replaced.

In the days of freewheels we could replace one cog at a time. Typically, you’d replace only the cogs that skipped and they’d usually be the smallest cogs. So, you’d put on a new 12 and 13 and the cassette would be good to go. Here's a photo of a classic Regina freewheel cog case that we used to use to build and repair Regina freewheels in the 70's and 80's.

With the advent of cassettes, though, you now have to buy the whole thing, which is a shame because you never wear out all the cogs at the same rate so you’re paying for everything when you only probably need one new cog.

You can keep a cassette lasting longer by changing the chain more frequently, but you end up paying for the chains, so you have to do the math for yourself and decide what makes the most sense. If you prefer expensive chains, you probably want to get your money's worth out of them.

Most of us just ride the chain until it’s showing signs of wear and then we replace it. Usually the cassette won’t be worn out yet. But, after you’ve replaced 2 chains, you may need a new cassette. It depends a lot of how and where you ride. So, if you’re in the rain and climbing hills all the time, you will wear things out faster than a flatlander in dry conditions.

If you decide to buy the Rohloff tool, I’d enjoy hearing how you like it and if it’s useful. I didn’t study the instructions sheet, but maybe you could even make your own version somehow as a do-it-yourself project? Though it may be easier to just test ride your bike with the new chain to see if the cassette is worn out yet.
Jim

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Q: Hello from Bucharest, Romania, Jim!

I found you by searching on Internet about bicycle noises, read it with great interest. Thank you for posting that info!

I just want to tell you about a strange noise which comes from my bike and drives me nuts. Maybe you met that before and I would be happy if sharing some info.

Shortly, while riding in sitting position with every pedal revolution I hear a noise coming from the upper tube of the frame. Sounds like metal crack. And the weird thing: when I loosened and then tightened the seat binder bolt the noise disappears for a while (let's say like 10-15 km of riding) and then reappears.

I already spray lubed it, installed it back, and it did nothing. The noise also appears if staying only in sitting position and moving back and forth without pedaling, but when I lean forward my upper body it starts to disappears. It seems to me like a sort of tension is creating over time between seat post and frame.

I'll let you know in case I found a solution and maybe you'll find it useful to put it on your website.
I'll be glad to help out other cyclists.

In case you have any suggestion please let me know, I would highly appreciate!

Regards,
Lucian

A: Nice to hear from you, Lucian, but sorry to hear about the noise on your Scott Scale 50 bicycle. Have you tried using a semi-permanent grease on the surface of the seatpost, inside the clamp around the frame and on the bolt too? There’s something called anti-seize. It’s a kind of lubricant designed to not evaporate or wear off. The kind I have is silver. If you get it on your hands, it’s hard to get off because it’s sticks so well.

If you can find this stuff, and apply it to those parts, it might make the noise go away forever. I would also take the time to disassemble the seat clamp at the top of the seatpost – the part that clamps the seat. Then lube those parts and put it back together. That’s an area where these noises come from too, and if the seatpost was not lubed already, they may have forgotten to lube the seatpost clamp/seat interface too.

These steps should quiet your bicycle!
Jim

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Q: Hello Jim,

Shimano Nexus Inter 7 Roller Brake Hub 36H 7 Speed SilverHere I am again with a problem facing to. I took apart my Shimano Nexus internal-gear hub, because it started to have some sandy noise from it (suspected that some dirt penetrated under the sealing). Took off the whole gear set from the hub as one, washed in petrol, put some grease on it and installed back.

Even though it seems everything in the right place, in gears 3-7 and when using the pedal brake, it has an awful cracking noise. Any hints what did I do wrong? I used white vaseline from the pharmacy as grease, can it be the mistake?

Thanks,
Béla

A: Hi Béla,
I suspect that when you washed it with petrol you removed all the lubrication. Petrol is too harsh for cleaning bicycle parts like hub gears. It's so powerful it cuts through and ruins any lubricants inside and you end up with a part that's dry and no longer lubricated. This puts metal parts that touch each other and need to mesh correctly in jeopardy because they are now running metal on metal with no film of lube between them.

Lubing it with Vaseline wouldn't likely solve the problem. The petrol gets inside the parts and washes out all the lube. The Vaseline - even if you spread it and push it - will have a hard time getting between parts and lubricating them adequately.

What I would try is taking it apart again and lubricating it with a thick oil, like automobile motor oil. You need to get this inside the parts. Be sure not to get it on any parts in the brake that are required to provide friction for stopping. But, get it inside the moving parts that mesh for shifting/gearing. One approach would be to soak the parts in an oil bath for a while so the oil really penetrates. Then, you'd want to let it drain out and wipe the outside of the part clean. Oil will leak out in use later, but you can use a rag to wipe it off. And, you know the part is lubed inside.

In the future for cleaning you can use a thin oil. This will wash out dirt while keeping the lube intact inside the parts. You never want to remove all the lube because it's hard to get it back in there. That's why it's a problem to clean parts with petrol or engine-cleaner solvents.

You should us a good bicycle grease on any hub bearings. Vaseline is too thin to last long enough.

I hope this helps get the hub running nicely again,
Jim

Friday, September 17, 2010

BIKE BOOKS: Around The World On A Bicycle

I heard a while ago that Google was scanning books and making them available online, but I never expected to be able to read Around The World On A Bicycle by Thomas Stevens on a computer. Stevens was the first cyclist to bike around the world, leaving the west coast in 1884 and returning to America 13,000 miles and two years later.

He did the entire trip on a highwheel bicycle, also known as an ordinary or penny farthing. It was quite an accomplishment when you consider that approximately 1,000 people died from falls off these bicycles in the 10 years they ruled the roads. It's cool also to think that highwheels were the first tall bicycles and among the first fixies too, so Stevens was way ahead of his time.

Stevens financed his adventure by filing reports from the road that were published by Harper's and Outing magazines. Perhaps this explains how his story became a 2-volume, roughly 1,000-page epic. The actual books are highly collectible and can fetch as much as $500 per volume. You can also find them in some libraries, though they typically won't let you bring them home to read.

It's nice that we can all now read it and enjoy the great illustrations whenever and however we want. To get you started I've embedded Volume 1 - From San Francisco to Teheran. Here's the link to the book on Google in case the embed doesn't offer full functionality. Incidentally, the furthest I've ridden in a day on my 1886 Victor Light Roadster highwheel is 100 miles in Scotland in 1990.