0
votes
1answer
70 views

Flat tires every morning [duplicate]

I just bought a new bike. I ride about 3 times a week. The last 2 times I've taken my bike out the front tire has been completely flat. I put air in it the first time it happened and went for a 10mi ...
4
votes
1answer
537 views

Why don't women have Cat. 5?

For road racing in the US, USA Cycling has women divided into four categories (4,3,2,1) and men divided into five categories (5,4,3,2,1). The procedures for category upgrades for 4-3, 3-2 and 2-1 are ...
0
votes
0answers
20 views

Need new 27x1 1/4 (32x630) tires, would the ones stated ONLY as 27x1 1/4 (without the 32x630 specification) fit?

Bought an old raleigh bike that needs new tires. Already made the mistake with the 700c (with horrible frustrating results), so need a bit of help. I saw some Kenda ones that ONLY state 27x1 1/4 ...
0
votes
1answer
62 views

My chain snapped ,need help [duplicate]

My chain broke today and I want to get a new replacement for it I just don't know what size I need my bike has 3 gears in front and 6 in the back which I'm guessing is an 18 speed and if you can leave ...
0
votes
1answer
45 views

How to clean a grimy old bike frame?

It's a 1950s eatons glider , used to be my great uncles. Sat in the garage since the 80s and now it's mine. Finally. Haha , but the paint just won't clean up. I've tried soap and water with a ...
5
votes
1answer
165 views

How many spokes can break before I need a new wheel?

3 of the spokes on my wheel are broken. How can I tell if the wheel is still good to use? Can I just replace the spokes or do I need to buy a brand new wheel?
3
votes
3answers
259 views

My rear wheel isn't properly spinning. How can I tell whats wrong?

I'm just getting back into cycling after a long hiatus. My bike is a little old and worn and its got some issues. The biggest one is the rear wheel. My rear wheel spins, but it seems to be off ...
2
votes
1answer
52 views

Shimano Rear Derailleur Max Capacity

I need to get a new rear derailleur. My chain rings are 53/39 and my cogs are 28/11 so if I am not mistaken I need a total capacity of (53-39) + (28-11) = 31. I need a 11 speed compatible rear ...
1
vote
1answer
29 views

cranks for a JIS bottom bracket

My bike is a 2016 Brompton, I am thinking to swap current cranks. Current BB possibly is this one (a JIS square taper), model: stronglight jp400 119 mm. ...
2
votes
1answer
53 views

Trouble removing bottom bracket

I've got an FSA MegaExo bottom bottom bracket that seems to have gone bad. I've head that FSA doesn't have the greatest bottom brackets, so I was going to try to replace it with this Shimano bottom ...
3
votes
0answers
61 views

one side of cantilever brake pads does not spring back

Same as this question one side of brake pad retention problem (i.e. attached to rim) but mine is a cantilever brake. The answer there doesn't work as mine doesn't have those screws and the brake ...
1
vote
1answer
25 views

Can one upgrade cable fork remote to a hydraulic fork remote? (Rockshox Pushloc to XLoc Sprint?)

I have a hard tail with a cable based remote lock: RockShox Pushloc: However, it's not that reliable. 90% of the time it works, but sometimes it get's stuck and won't unlock the first time ...
0
votes
1answer
33 views

How does this work? “Rotor BB30 to 24mm Steel Road Bottom Bracket”

I'm looking at ways to make a Claris/Tourney crankset fit a BB30 frame. I've seen that a "Rotor BB30 to 24mm Steel Road Bottom Bracket" is one of the options to make the two sizes work together. ...
0
votes
0answers
32 views

mountain bike URT modify

how do you make a URT mountain bike a hardtail bike? since URT has a 2nd suspension,how do I make that 2nd suspension feel like its not there?,just like a hardtail. also,are there any pro mountain ...
1
vote
1answer
49 views

E-bike battery doesn't work anymore, where do I get this specific one? [closed]

Can somebody tell me exactly what battery this is or where I can buy it? I appreciate any help a lot! If you need more information, please let me know. Edit: This is the e-bike the battery used to. ...
1
vote
1answer
40 views

Trouble with spiral folding bike lock - jammed

I use a spiral folding bike lock similiar to the one here: http://www.amazon.co.uk/RockBros-Theft-Folding-Hamburg-Colors/dp/B00MB7NUB6 It was a fairly decent lock, but now it's jammed; I've tried all ...
1
vote
1answer
29 views

Old bike compatibility with direct train bike trainer?

I'd like to get a direct train bike trainer (wahoo kickr) to exercise on. My current road bike is a Schwinn le Tour circa 1980, and does not have the 10 or 11 speed required to run on most direct ...
1
vote
1answer
70 views

Can I upgrade cassette without replacing rear derailleur?

On my road bike, I have an old 8 speed Shimano 600 Cassette like this: I'm not 100% sure about tooth count on each cog, but I think it's something like: 23, 21, 19,17,15, 14, 13,12 (probably?) I'm ...
2
votes
3answers
526 views

Shoulder pain caused by messenger bag?

I have a professional messenger bag (chrome mini metro messenger) I have been carrying for about 2 months. The bag weighs around 3 lbs and I generally carry about 4 lbs of stuff in it. Biketools, ...
4
votes
7answers
261 views

why would my chain slip on the road, but not when the bike is on a stand?

The chain on my bike has started to slip a lot -- every couple of seconds when riding. It happens, as far as I can tell, in every gear, and is unrelated to shifting. The precise nature of the problem ...
0
votes
0answers
32 views

New front fork on old Cannondale XR800

I have an old 2000 Cannondale XR800 (CAAD3?) that I want to upgrade with a non-suspension, disk-brake compatible front fork. Something like this. But what fork to buy? Anything I should know about ...
0
votes
0answers
32 views

How to carry professional clothing while riding a bike? [duplicate]

In the coming months I plan on moving significantly closer to my place of work. Since the commute by bicycle would then be about 30 minutes I plan to take my bike when possible. The only issue I have ...
4
votes
2answers
62 views

Is there a “conventional” configuration for mounted accessories?

Many different types of bike accessories as designed to be mounted via somewhat-conventionalized braze-ons: These braze-ons most often are on the down tube and occasionally on the seat tube and nearly ...
4
votes
2answers
243 views

Would a hard tail 29er be a good starter bike for road and light trails?

I can't really figure out what kind of bike I should be getting as a "loaner" bike. I have plenty of friends who want to go for a ride but have no bike, and ever since my last loaner got "borrowed" 2 ...
6
votes
2answers
204 views

Smooth tires on wet road?

In this answer : link (With regard to tires, there seems to be a widespread belief that the mountain bike tires will grip all kinds of surfaces better, including asphalt: in other words, that they ...
3
votes
1answer
28 views

Bottom Bracket size issues

I need to replace my bottom bracket on my giant rapid 3, the BB is a FSA BB-7420ST - 116mm (68x116mm), but it's hard to found or not available. My Question is: can I use a BB in 68x115 or 117mm ...
4
votes
2answers
233 views

Can I use a road bike stem on my mountain bike?

I've got a XC mtb which 1. I'm trying to cut the weight off , 2. I want a bit extra reach. I've got a longer road bike stem made by 'Deda' (I think Planet X)? and I was wondering if it will be strong ...
0
votes
1answer
51 views

How to tell the size of a bike chain? [duplicate]

My bike's chain broke, so I have to replace it now. The question is - how can I tell what size chain do I need to buy so it fits the bike? It's a 5 gear internal-hub bike.
1
vote
2answers
65 views

Is this brake cable alignment correct or problematic?

I have a BB7 disc brake to fit to a CAAD10. Am I fitting this wrong or have I bought the wrong thing? It doesn't look like the brake cable lines up with the rubber bit - like this: I have not ...
4
votes
3answers
98 views

I have a hybrid bike which the frame is too big, is there any modifications I can make to make it more comfortable?

I bought a hybrid bike from halfords around 6 months ago, however i have only recently had chance to ride it. I have found that the frame is too big, they wont exchange or give me a refund. I was ...
3
votes
1answer
18 views

Replacement for Shimano Nexus 7 outer casing holder

I swapped my Nexus 7 sprocket with a new and the bracket apparently has a much larger diameter, so my cable is not stopped. The drawings that came along showed that I need an "outer casing holder" ...
6
votes
1answer
110 views

Where does the energy loss in cycling go proportionally? [duplicate]

If you are biking on level ground with no wind, I understand that there are losses inherent in your activity which you provide effort to overcome (if you want to maintain a steady speed): Air/wind ...
3
votes
3answers
84 views

What is the minimum repair kit/parts I should bring on a 150 mile bikepacking trip?

Planning a 150 mile rails-to-trail ride (GAP trail from Pittsburg) with my family of 5. We'd potentially be 10 to 15 miles max from "civilization", probably further from a bike shop. But expect to see ...
14
votes
6answers
2k views

Why are most BSOs mountain bikes?

All department store bikes, that I have witnessed, are mountain bikes. Many of them are even full suspension and some feature dual-crown forks. Why the lack of BSO (Bicycle Shaped Object) road bikes? ...
1
vote
0answers
34 views

RevoShift doesn't move cable between 6 and 7

I have a Shimano RevoShift 7 speed (indexed), that has trouble shifting between 6 and 7th gear. I disconnected the cable for a test, and I see that for the other gears, each click moves the cable ...
3
votes
3answers
123 views

What are my options for correcting a bent aluminum fork?

I have a Cannondale ST700. A few weeks ago, I had a head-on collision. At first glance, the bike was fine. But the next time I went to ride it, it pulled to the side when I turned. Turns out my fork ...
1
vote
1answer
69 views

Can the Garmin 520 be charged while riding?

I am looking to buy the Garmin 520 for some brevets but it only makes sense to do so if I can charge the device while riding. Does anyone know if this is possible? I know that the usb port is in a ...
3
votes
1answer
55 views

How do I revive my front shock?

I left my mountain bike hanging from the front tire for a long time. Now my front shock is seized. What should I do to fix the shock? I'm considering spraying it with WD-40, but I'm not sure if that ...
4
votes
2answers
126 views

I bought a used 20 inch bmx bike from bike shop but no one has any idea of the brand

Could someone help me narrow this down? I bought a new-used bike from local bike shop in Sacramento, California, USA. I do not know what brand it is and so were the bike shop. There are no stickers ...
4
votes
1answer
192 views

Vintage 1979 Peugeot roadbike rear derailleur change

Hello guys, The rear derailleur (6 speed) on my bike (picture attached) shattered all of a sudden while biking uphill after a few months of problems with the chain not fitting immediately on the ...
4
votes
2answers
44 views

Shifter with stuck barrel adjuster

I've been looking for a solution on this but couldn't find anything online. I have an Alfine 8 speed internal gear hub and it started skipping recently. I tried to use the barrel adjuster on the ...
8
votes
1answer
320 views

Road Bikes: Aero vs. Traditional

On any given race within the pro peloton, the teams whose sponsors offer both aero and traditional frames (BMC, Trek, Canyon, etc) typically have a mix of riders on each style of frame, but the GC ...
2
votes
2answers
95 views

Is the real world experience of riding a light bike understated by physics-based calculators?

Take the case where you have two identical riders, Joe Slo and Billy Whizz. They both weigh 75kg and have identical aerobic threshold power output. Joe has a 11kg steel audax bike, but Billy likes ...
3
votes
3answers
91 views

9 speed Shimano shifter with 7 speed drivetrain

Can I use a 9 speed shifter with a 7 speed drivetrain, with good shifting and without needing complex adaptations? I am considering that as an alternative for this need: Using only the brake lever, ...
-4
votes
1answer
78 views

Where can I sell Shop Rags? [closed]

I have 2 boxes of Shop rags sitting in my living room. Each box contains 1000 cotton automotive Shop rags. The rags are brand new still in the box. Shop towels is the product that everyone working ...
0
votes
0answers
35 views

Time Crunched Cyclist Training Programs Relative Difficulty

There are 4 plans in this Time Crunched Cyclist book: New Century Experienced Century New Competitor Experienced Competitor I'm wondering what the relatively level of difficulties are of these ...
3
votes
2answers
68 views

Diagnose grinding sound from single rear cog

I've got a '70s-era ten-speed road bike with (what I think is) a Huret Eco rear derailleur which shifts well, but for some reason a loud grinding sound emits from the rear of the bike when using the ...
1
vote
2answers
65 views

Wobbly wheel/hub even when I tightened the cones

The wheel has a sideways wobble eminating from the hub. I tried adjusting the cones to the point its too tight but the wobble continues. Upon closer inspection there is play in the point where the ...
3
votes
1answer
79 views

How to re-shape a bent steel fender

I've got an old road bike with polished steel fenders, the rear one of which unfortunately got bent during transport: As you can see in the lower half of the photo, the two sides of the fender were ...
4
votes
2answers
75 views

Using only the brake lever, separated from an integrated shifter/brake

I have an old Shimano STX integrated shifter/brake. The shifter part is broken. Can I separate the shifter part, with reasonable effort, so I use only the brake and get a new shifter? From what I ...

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