0
votes
1answer
207 views

Did i buy the wrong derailleur? (mech hanger/direct to frame)

I'm a total newbie with bike repair and I can't figure out this hanger/direct to frame business. Googling doesn't help much. Here is a picture of the current derailleur and the new one I bought. The ...
0
votes
2answers
183 views

Do single speed/fixed bicycles come with machined rims?

I recently purchased a Masi Fixie Riser with a flip/flop hub (gearing on both sides) and brakes, but the rims aren't machined. Is this common on $700+ single speeds?
3
votes
1answer
3k views

What are the advantages/disadvantages of press fit bottom brackets compared with threaded?

Many standards for bottom brackets have been gaining popularity recently such as BB30 and PF30. What are the benefits of these press fit systems over the threaded system that has prevailed for ...
1
vote
2answers
454 views

Singlespeed chainline adjustment

I have replaced the freewheel on my bicycle with a singlespeed. However, the chain line appears to move inwards from the rear to the front. picture I have measured the rear frame spacing as approx. ...
4
votes
3answers
1k views

I keep breaking the tips off my presta tube stems

I can't pinpoint what I'm doing wrong while inflating my tubes. I use presta valves and have a "Joe Blow" Topeak pump. I put the tube stem at 12 o'clock, I unscrew the tip of the tube stem (but not ...
1
vote
3answers
232 views

Why some companies stop supplying frames to pro teams?

Nowadays TIME hardly sponsors professional cycling teams at least with their frames, and I feel others like LOOK, De Rosa or Cervélo are also leaning away from it. Why it happens? Do they think their ...
2
votes
1answer
560 views

What's the logic behind this chain length estimation method?

I know of several methods of sizing a chain for a bike: As many links as the previous chain. Small-small. The RD should be barely expanded, the chain nearly rubbing against itself roller-cogs. The ...
1
vote
2answers
157 views

Puddle of oil when left up side down

The other day I left my mountain bike upside down overnight as I was changing a tyre. The next morning i had a puddle of what seem to be oil next to the handle bar. Does anyone have an idea where is ...
0
votes
1answer
135 views

Will slightly slimmer seatpost make a difference?

I have an old Peugout bike that needs a 23.8 (to the best of my measuring abilities) seat post. I can't find such a seatpost in all the obvious shopping places, but I did find a 23.4mm one. I'm just ...
2
votes
0answers
154 views

Is there a 3rd party tool to create a heat map of all activities in a specific area? [closed]

I'm familiar with Jonathan O'Keeffe's Strava Multiple Ride Mapper (tied to the Strava API) but I'm interested in mapping all activities in a certain geopgraphy, not just those I've done. My goal is ...
2
votes
1answer
146 views

Bike chain too long?

Recently, my road bike's chain got cut, so i took it for replacement. A new chain was inserted and the shifting had a good transition. However, when i shift on the harder gears, i hear "crack crack ...
0
votes
2answers
388 views

Difference between 3 campy 80mm deep section wheels

Currently, three 80mm wheels are listed in Campagnolo's websites, but I can't fully see what's exactly the difference between them. BORA ULTRA 80 BULLET ULTRA 80MM BULLET 80MM I guess BULLET 80MM ...
1
vote
2answers
378 views

Tire upgrade from 22“ to 26”

I am looking at purchasing a used Specialized Rockhopper with an XL frame. Everything is exactly what I'm looking for on this bike with one exception...the tire size. It currently has 22" tires/rims ...
3
votes
3answers
455 views

Should I replace both wheels/rims if I convert the front to a dynamo hub?

The title mostly says it all. Is there a reason to or a reason not to replace the back wheel or rim if I replace the front wheel to get a dynamo hub? The only reason would be aesthetics, to keep the ...
6
votes
6answers
1k views

Bicycling 36 km per day in city traffic is feasible?

I am planning (still in planning phase since last 1 month :( ) to use bicycle as my commute to and from office. My office is around 18 km away from my home. Almost half the road will be full of ...
1
vote
2answers
6k views

Giant Overdrive 2 fork replacement

I have a 2014 Giant Trance with an Overdrive 2 tapered steerer (1-1/2 - 1-1/4). As we know, the standard tapered steerer is 1-1/2 - 1-1/8 inch. I want to replace my OEM fork (Fox 32 Float Evolution ...
1
vote
1answer
390 views

Alternatives to ordinary fenders

I ride a fixie and fenders just don't look good on it. Rear fender is ok, but there is no way I'm installing such a monstrosity on the front wheel. Are there any alternative out there that don't make ...
2
votes
4answers
123 views

Chain link jams after reassembling the rivet [duplicate]

I bought a chain riveting tool. Here is how it looks like: It works fine, I was able to push the rivet out of a test chain. But faced an unexpected difficulty: after I restore the rivet to it's ...
1
vote
3answers
595 views

Is there a cheap touring bike that is as light as a road bike

I want a touring bike that is as light as a road bike - basically I want a road bike with a touring bike geometry - ie around 10 or 11Kg, excluding pannier racks, and other add-ons. My price range ...
6
votes
6answers
559 views

How to avoid running over animals whilst cycling on a canal at night?

I commute on a towpath in Hertfordshire, England and there is ample amount of wildlife about. During the day it's fine, I can see ducks, squirrels and rabbits in time and slow down if I need to. ...
2
votes
1answer
116 views

Does riding bicycles reduce sperm count? [duplicate]

I have heard this many times before. Is there scientific evidence for this fact? Or have any of you come across this in your lives?
1
vote
3answers
5k views

Replaced chain, bike makes grinding noise?

Recently, I started going to a community bike shop to learn how to maintain and service my own bike. Ever since I changed the old, worn-out chain to a new chain with a master link, I've been ...
1
vote
2answers
3k views

Problems with Edge 510 Cadence/Speed Sensor

I have been looking online for a while on how to fix a bug with my Garmin Edge 510 Cadence/Speed sensor but no luck, and now I'm indoors training it's more important that it works (so I can get ...
1
vote
1answer
199 views

Cygolite Expilion Battery Replacement

Did anyone take apart the replaceable battery of the Expilion headlight? I assume it contains a 18650 like battery, but some have a protection circuit built in and some not. Any knowledge about the ...
43
votes
17answers
7k views

How to get over anger at inconsiderate drivers

Fortunately, I have very few strongly negative interactions with cars (most people generally seem to respect the way I ride), but those that do stick with me for a while. The scenario is almost ...
5
votes
3answers
2k views

Should I grease press fit attachements?

When two parts are press fit together (e.g. headset cup & head tube, crank arm & bottom bracket, etc) is it proper to grease the surfaces that will fit together, or not?
1
vote
6answers
416 views

Key Stuck in bike lock!

My key has snapped off in my bike lock and I'm wondering if bolt cutters are going to do the job and if not what else will? Its this lock that I have:
6
votes
4answers
7k views

Why is my fixie so very hard to pedal?

I recently got a fixed gear bike and I rode it about 5 times. I live in an urban part of the city. I've never rode a fixie before or know much about bikes in general and I knew it would be difficult ...
1
vote
1answer
87 views

How do i fix my v-brake with some part twisted?

Here's the pictures I did a lot of searching on the youtube about the fix but couldn't find as i don't know what that part of the bike is called.Its seems to me as if i need to buy new ones ...
0
votes
1answer
176 views

what make and model is this bike please?

Please help me identify this bike, I have looked in a multitude of places and come up with nothing. It looks to be a beach cruiser.
9
votes
4answers
725 views

How to transport bulky things on a bike

I am a hobby musician and would like to transport my instruments on my bike because there are just a few parking lots and it is too far to walk. Is there a good and safe way to carry a trombone, ...
1
vote
2answers
56 views

Changing '75 international to clip in pedals and shoes

I have developed foot issues because my stiff insoles don't do me much good on the bike, especially if I stand to go up hills. So I think I need to switch to clip ins with good stiff shoes (Bont ...
2
votes
2answers
346 views

Should I restore my old mt-bike for winter commuting (and for wife to ride with me) or throw it away?

One year ago I moved to Boston and my father-in-law gave me his old Specialized mountain bike. He is a road bike guy so this bike was left aside for the longest time. It was in a decent shape. The ...
2
votes
3answers
463 views

Is there any use to motor pacing for people in the cat 4 to cat 2 range actually useful?

In the local cycling club some people are keen on racing but are no higher than cat 3 in the events that they can enter and the power that they produce. The general consensus is that motor pacing ...
1
vote
4answers
610 views

What are the practical limitations of a road bike compared to a mountain bike?

I grew up on a big box store mountain bike. I want to get a road bike for my commute, but I'm curious about the limitations I'll experience. I know the benefits of a road bike: lighter weight, less ...
0
votes
1answer
93 views

what should I do when single track gets narrow

There are some trails I ride on regularly and I've seen many people go each way. A few times the single track gets very narrow and I was wondering what should I do when I see a biker coming towards ...
3
votes
3answers
370 views

Does anyone know what kind of bike this is?

I found this bicycle a while back and have been planning on either fixing it up (if it's worth it) or selling it. All I have, really, is the frame. I haven't been able to find out exactly what it is ...
3
votes
1answer
525 views

How big can I drop safely on a mountain bike

I have an 80 mm front shock (fork) and the back shock says it's 3 inches. What size jumps can I do without ruining the bike or shocks?
0
votes
1answer
104 views

Front Derailleur Tuning Question

I've installed new front derailleur (Shimano Tiagra) on my bike and I spent embarrassingly lots of time trying to adjust it. Yet still I think I have a problem with it. For me it seems too tense. You ...
0
votes
2answers
203 views

cars and scooters in a road bike race

I see this a lot in videos from road bike races. A lot of rider team cars mixed with the road bikes doing the actual race. What is the matter with that? What do they do? Also, don't the riders inhale ...
0
votes
1answer
102 views

Is anyone really convinced of ANT + technology/benefits? [closed]

I want to replace a computer with a new one (triple wireless) cadence, HR and speed but am in two minds as to if I should get a comp with ANT+. They seem more expensive and for what I will use it for, ...
2
votes
1answer
399 views

How much can a 700x23 inner tube stretch?

I recycled my dad's road bike (about 20 years left in storage) so I bought a complete set of new wheels. "Good" hubs and rims, not quality brand though but I've been told they're good and that's what ...
4
votes
1answer
743 views

How do I fit this pair of chain tensioners on my single speed bike?

I have these chain tensioners: How do I install them correctly on my single speed bike? Do they go on the inside or outside of the frame? My dropouts look something like this: Apologies if the ...
2
votes
2answers
7k views

Can I use Edge 510 as an indoor trainer computer

I'm setting up for the winter (yes it's only October, this is Sweden). I need to set up a speedometer for my rear wheel while I use the turbo trainer, I have a Garmin Edge 510 with cadence sensor, and ...
0
votes
1answer
111 views

dual pivot side pull brake shoe touches wheel rim. How do I fix it?

Based on http://sheldonbrown.com/calipers.html what I have on my front tire is the "Dual Pivot Sidepull" type brake. The right brake shoe touches the wheel without having to actually apply the brakes. ...
3
votes
2answers
1k views

Cyclocross Tire Pressure

I have never raced before but there is a cycloycross race a mile from my house this weekend. Course has a fast bumpy downhill. On my mountain bike with fixed carbon fork and tubeless at 40 PSI ...
13
votes
3answers
947 views

Gear to protect against hand injury in a crash

I commute to work a few miles on my bike in the city. Today someone walked out in front of me and I squeezed the brakes too hard and went over the handlebars. I suffered a mild elbow fracture ...
4
votes
1answer
275 views

First Cyclocross Race - Riding a Mountain Bike

I'm participating in my first ever bike race this weekend. It's a cyclocross race, and I'm riding a full suspension mountain bike, because I started looking into races late this season and a fully is ...
1
vote
2answers
190 views

Catastrophic failure

My rear wheel suddenly became loose in traffic today. It is completely off axis. The axle looks fine from the outside. I remember being told something about loose cones. Should I bother to repair ...
1
vote
1answer
258 views

why do left shifters switch chainrings and right shifters cogs?

Can that be changed? Is it just convention? Is there any commercial bike that comes with a left-shifter that switches cogs?

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