1
vote
2answers
768 views

Upgrade my Rear Cassette from 12/25t to 11/28t

I have a Specialized Secteur 8-speed road bike with a Shimano HG850 12/25t rear cassette running on a KMX Z type narrow chain my crankset is a 52/42/30, I have done about 2,000 miles so it's probably ...
1
vote
3answers
3k views

smaller wheels on big bike to reduce height

I have a SEKAI sprint 1000 bike which is a tiny bit big for me as I have problems reaching with my feet to the ground. The existing seat is already down to the lowest level so can't reduce the height ...
4
votes
1answer
2k views

How do I tell if jockey wheels need overhaul or replacement?

I am refurbishing a bike and am deciding how much to clean out the rear derailleur. It's in pretty good shape. But after I take off the chain, I tried spinning the jockey wheels with my fingers ...
2
votes
4answers
2k views

Edit gps recorded track

I'm using Garmin Fit for my phone. On a long ride my phone went out of power and didn't manage to record the last of the track. I've uploaded the first part of the ride to Garmin Connect and can ...
1
vote
1answer
4k views

What Are the Widths of Shimano 8, 9, and 10 Speed Cassettes?

I was hoping that someone could provide me with the precise Shimano road-bike 8, 9, and 10 speed sizes for the following: Cassette Spacer Width Cog/Tooth Width Maximum Chain Width
4
votes
2answers
1k views

Does ProPedal on FOX RP2 rear shock wear out when on during downhill?

Yesterday I forgot to turn off ProPadal before quite nasty downhill ride on my Fox RP2 rear shock (riding Giant Reign 2011) - I can imagine this makes no real harm to the shock but think there can be ...
1
vote
3answers
269 views

Compact gears and chains

Wanting to know if you can use a compact crank and also use a compact cassette , I have placed both on my bike but the chain seems to be at the extreme when placing the chain in the smallest gear and ...
5
votes
2answers
4k views

How does a chainstay length affect a mountain bike performance? (wrt: 26", 650B, 29r)

The trade offs for 26" through to 29" with respect to rolling resistance, contact patch, obstacle rollover, etc... have been well discussed. However, it occurs to me that as the rear wheel gets larger ...
10
votes
4answers
6k views

What are the disadvantages of more suspension travel?

Having some suspension travel is always nice, but what disadvantages are there for the bikes handling as the travel increases? This question applies to both to full and front suspension bikes.
1
vote
1answer
125 views

Difference between high and low pressure air springs?

I've just been adjusting the spring pressure on my Rock Shox SID XX fork and then adjusted my Manitou Minute Expert because I had the pump out. The SID has the solo air spring and needed 115psi and ...
1
vote
0answers
120 views

Smartphone racing bike mount [closed]

I have a Samsung S Advance smartphone, and I want to mount it on my racing bike. The only bike mounts I can find are either iphone mounts, or a few universal bike mounts, but these are all too small ...
4
votes
1answer
393 views

Is it OK to bunnyhop on a Kona/Fastrax AF2 while in Lockout Mode?

I recently got a Kona Tanuki 2012 bike that sports a Kona/Fastrax AF2 Rear Shock. Sometimes while on the road I miss bunnyhopping over things. Is it wise to lockout the Kona/Fastrax AF2 Rear Shock ...
4
votes
1answer
3k views

Upgrade/Replacement options for Cannondale Headshok DD50?

I have an older Cannondale that I love. It's an F600 comp (the special edition one in pumpkin orange), with a DD50 front shock. The problem is that the DD50 is WORN as all heck. Even when locked ...
6
votes
5answers
6k views

Tips to Alleviate Hand Soreness

I've recently switched from a hybrid with straight bars to a touring bike with conventional drop bars. My commute is just over 5km, and my palms have been getting very sore just below my thumb. My ...
2
votes
3answers
1k views

Crankset replacement

I have Exage 300 lx crank 48,38,28 Crankset. It is also Biopace. I would like to replace it since it is worn out. What current model from Shimano is a suitable replacement? regards
-1
votes
1answer
221 views

Replacing a road bike frame [closed]

I have a 2002 Calfee carbon fiber frame, with aobut 45,000 miles. If I replace it with a new one, what improvements can I expect? I have no complaints about the frame, other than a poor paint job.
1
vote
3answers
1k views

My stem keeps moving side to side even thought I tighten it

I just got a new Demolition Stem.I tight it with all my force And It keeps slipping side to side Like it doesnt match with the fork lined up And whenever I check it its fine but after a while it is ...
0
votes
3answers
691 views

Why did my tire just blow up?

I finished a 2 hour bike ride outside today, and I parked it next to the wall in my kitchen after I got home. 3-4 hours later... all the sudden the front tire just "blew up". What happened? Thanks!
3
votes
6answers
3k views

What is considered a good “safe biking distance” to bike to work?

I'm curious about what is the maximum distance you can live from work so that it's a reasonable biking distance. I am interested in biking about 30 minutes to work. It would be about 5 miles away. I ...
4
votes
3answers
326 views

What Supporting Muscle Groups Should Be Strengthened?

Various sites recommend a variety of exercises to strengthen a cyclist's core (back and upper body). bicycling.com recommends aerobic type exercises with an exercise ball. t-nation.com recommends ...
17
votes
5answers
1k views

Why the penny-farthing?

The penny-farthing was the standard until the diamond-frame "safety bike" was "invented" and revolutionalized the world of bikes. It seems to me strange to have to "invent" to put the same size of ...
5
votes
3answers
1k views

Why would a bike computer calculate distance accurately but average speed inaccurately?

My otherwise reliable non-GPS bike computer calculates an extremely inaccurate average speed for my morning commutes. After my ride this morning, I read the following values from the display (units ...
1
vote
1answer
624 views

Storing spare tube under saddle bag

The saddle bag I own has two elastic loops on the underside. From reading this question on long-term storage of tubes I can see tubes don't like changing temperatures (not really a problem in Ireland ...
1
vote
1answer
135 views

Is it okay to use mismatching tires? [duplicate]

I own a Vittoria Rubino Pro Slick 700x23 and a Conti GP4000S 700x25. What do you guys think about: mounting different tires on a bike? which tire should go where? The Vittoria has around 200 miles ...
7
votes
3answers
507 views

Do wider tires wear better?

I'm interested in road bike tires and how width affects how long they last. It seems common-sense that a wider tire would wear better, as there's simply more of it to "spread" the wear, but I'd like ...
4
votes
4answers
5k views

Will I notice the benefits of changing wheels?

I've got a 2010 Specialized Tarmac Comp. The wheels are Mavic Aksiums and are pretty well known to be dam heavy (but sturdy) I'm seriously considering swapping them for something like Fulcrum Racing ...
0
votes
1answer
346 views

Can I install an 8 speed sturmey archer hub on a dahon folding bike

Can I install an 8 speed sturmey archer hub on a 6 speed dahon folding bike ?
3
votes
4answers
3k views

Tri-bars/Aerobars on Mountain Bikes

I am trying to work on endurance in the hopes of one day touring the GDMBR in a reasonable amount of time and after watching Ride the Divide, I noticed a lot of the riders are using aerobars. When I ...
0
votes
1answer
233 views

Bought slightly too big outer tube - options?

I've had good experience in the past with riding a racing bike with cross-bike outer tube (grip, protection against flats) in the city. So I bought similiar outer tubes again for my new racing bike. ...
3
votes
1answer
427 views

Disc brake pad and rotor compatibility

The SM-RT53 rotor should be used together with resin pads. If it is used with metal pads, the pads will wear out very rapidly. from Shimano BR M-416 disc brake manual How do I know if a rotor ...
5
votes
4answers
1k views

Disc brake rotor size and forks strength

I have been told that every fork has a maximum rotor size characteristic. For example, for my $75 Suntour this is listed as 185mm. The explaination that I have been given for this limitation is that ...
2
votes
3answers
272 views

Safe saddles for men's health

As a continuation to Why is it important to have good saddles? I would like to know: Are there non-expensive saddles that are safe for men's health that you can advise. A slightly different question, ...
1
vote
1answer
2k views

loose brake calipers

I have some dia compa ac 500 brakes on an old road bike. While the calipers are installed on the bike, with everything tightened, I can move (rotate) the calipers side to side with my hand. I've ...
3
votes
1answer
706 views

Can't change into the largest sprocket on rear derailleur

I bought my first road bike recently, and I've noticed I can't change into the largest cog/sprocket on the rear derailleur because when I pull the shifter the chain is pushed into the side of the ...
8
votes
5answers
686 views

Fix / clean or throw away tire with 30+ thorn punctures?

I recently rode through a horrible thorn patch. I came out with 2 flat tires. Upon examination, I found that the tube was punctured in 10+ places. Throw away. The tire has 30+ small thorns in it. ...
0
votes
1answer
286 views

Are New York pedestrians allowed to use bike lanes? [duplicate]

In NYC, some street bike lanes (specifically, one on 8th avenue in midtown) are typically full of walking pedestrians. Is this legal? (e.g. are the pedestrians doing it actually jaywalking or ...
9
votes
2answers
243 views

Is there an (un)official rule about twisting back a seat on broken bike for CitiBike or other shared bike programs?

"don't pick a bike if its seat is twisted around backwards. That's a sign that a previous rider found the bike busted." -(from SamtheBrand's answer to How to choose the right Citi Bike? ) Can ...
-1
votes
2answers
681 views

What is the right (best) bike for me? [closed]

RE: Disabled Vet, out of condition and trying to buy a bike I started biking back in 1985 and have been out of biking almost 20 years. I was fairly savvy on the equipment of the day. It's changed ...
1
vote
1answer
647 views

Could I have damaged the bearings/cone when replacing a tire? Front wheel wobbles side to side

Last evening I installed new tires on my bicycle. The front wheel now wobbles side to side. I notice a small movement about 1-2 mm near the hub/axle cone. I checked to see if the skewer is all the ...
0
votes
2answers
3k views

Shimano 105 5600 derailleur compatability with 105 5700 11-28 casette

My current cassette is a 105 5600 12-27 the front is a 105 5600 53/39. I want to go compact so will the Shimano 105 5600 rear derailleur support the 105 5700 11-28 cassette?
1
vote
2answers
128 views

Bike Shorts and Metal Eyelets

I'm looking into buying some bike shorts and wanted to know what was economical and yet still better than normal gym shorts (which I'm using now for about 17 or 34 miles per day). Walmart has bike ...
0
votes
1answer
568 views

Can't get the drive side bottom bracket cup out

I have an older Raleigh frame that I converted to a fixed gear and the bottom bracket cup on the drive side has been painted over a few times and I can't get it out. This is the type of cup (the one ...
5
votes
1answer
743 views

What is the significance of rear travel of a frame?

Every suspension frame has the the following two parameters: shock travel and rear axle travel at maximum shock compression. I have a lot of questions, regarding those two: What are they properly ...
1
vote
1answer
499 views

What tool do I need to disassemble this 5 speed freewheel

I have a 5 speed freewheel that I need to take of from hub, but the standard freewheel tool that I do have does not fit. On the freewheel following text is engraved: UC SHIMANO SIS MF Z015 China It ...
4
votes
2answers
396 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 ...
2
votes
1answer
399 views

Best Cassette Cog Material

I am replacing my smallest cassette cog for the 3rd time. I have been using Harris Cyclery's Aluminum Cog Crupi's Chromoly Cog is about 3 times as expensive. Is that still worth it? Can anyone ...
10
votes
2answers
2k views

Why are some bikes sold without pedals?

At the risk of sounding like a bumpkin, why do I see some bikes sold without pedals or at least pictured without pedals? Is there some kind of benefit to buying pedals separately? Do some people take ...
1
vote
2answers
243 views

chainrings matching up to crank arm?

I have a 9 speed specialized sport comp road bike. my chainrings are 50 x 34t and i wanted to possibly change them to a 53 x 39t to increase my speed. it has shimano cassette/components and a ...
4
votes
4answers
981 views

Are tubular tires still used today?

I bought an older second-hand racing bike, which has tubular tires mounted. I went to a bike shop and wanted to buy a spare tubular tire, but they told me: Wow, such an old bike! No, we don't have ...
0
votes
1answer
222 views

Why are master links so expensive?

2.51 euro for a quick-link (the cheapest)? But this is not so different from just single chain link. Why such prices and not for a dime?

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