7
votes
2answers
461 views

What is the purpose of the plastic disk between the cassette and the rear wheel?

There's a plastic disc between the cassette and rear wheel on my bicycle. It doesn't seem to have any effect on the actual drivetrain; but I've seen it on a number of bicycles. What is it for?
-3
votes
1answer
75 views

Guidance on Specialized bike models [closed]

is the specialized Tricross or Crosstrail bike preferable for a combination of light trail riding and road riding
5
votes
3answers
152 views

Urban rides map projects

Some time ago I read about a project in which bike commuters tracked their paths in order to map then on-line and have a place to see the most frequent routes in their city. Do you know this or other ...
0
votes
0answers
145 views

Help me identify my bike please

i found a bike in my grandpa garage wich is called Staiger Trento, a pliable bike, white color and is completed, nothing missing from bike. Looks nice, shiny and perfect. I want to know how much money ...
0
votes
2answers
61 views

Truvativ Crank housing

Im repairing a friends bike and changing the crank. I have removed it and want to find a replacement The removed item is Model: BB-06-PSPL - 113/68 Im wondering if there is a replacement Shimano ...
0
votes
1answer
85 views

Trek 3700 XC Hardtail - looking to convert to temp road bike [duplicate]

Bike Description Front suspension, knobby tires Frame: Aluminum w/semi-integrated head tube, bi-oval down tube w/integrated gusset, rack & fender mounts, disc compatible dropouts, replaceable ...
7
votes
4answers
200 views

How to relate wind chill, temperature, and cycling

I'm interested in how wind chill and temperature come into play while cycling. If I rode on one day with the temperature at 15°F (-9°C), but the wind chill was 1F (-17°C), how would that relate to a ...
4
votes
2answers
119 views

How to setup rebound?

I have fancy new full-suspension bike and both shocks have this strange setting, called Rebound. It's a red dial, beside the blue CTD lever. Increasing it makes the shock less responsive to small ...
1
vote
1answer
99 views

Aerodynamic effect of drafter to the draftee [duplicate]

I thought I read somewhere something like having someone drafting behind also has effect to the rider in front. I wonder if it's true and would like to understand how does it work because it's quite ...
1
vote
1answer
97 views

Did the Giant Trinity A1 come with a derailleur hanger?

I am putting a bike together and have it all apart but don't see the derailleur hanger anywhere. Did I lose it or did the bike not come with it? If it didn't come with it, why not? Thanks.
-1
votes
2answers
96 views

What components are required to upgrade from a 14 speed to 24 speed?

I made the mistake of buying a 14 speed bike... I live in WA so it's hills everywhere you turn, took it for a spin yesterday and while on flat surfaces it felt great, but taking hills or going down a ...
2
votes
1answer
177 views

Will using a pannier rack mounting kit damage a carbon frame Axiom vs Tubus

I am hoping to buy one of these in the next few weeks: Specialized Roubaix SL4 Expert Disc Di2 2014 Road Bike But I will be using it for commuting and need some luggage so I need to fit a pannier ...
-1
votes
2answers
93 views

Advantages and Disadvantages of Bar light vs headlight. [duplicate]

What are the advantages of each setup. Obviously more is better :) but if you had to choose one, which would it be and why? The scene would be in a tight wooded single track.
0
votes
2answers
143 views

Lower vs. Taller Bottom Bracket Height

The bottom bracket height on some bikes can be adjusted 7.0mm by flipping a "chip" in the shock mount linkage. This also effects head tube angle by 0.5 degrees. Theoretically speaking, What are the ...
2
votes
2answers
76 views

Rear mech cage stuck, how can I take it apart?

This is a shimano ultegra 6700 rear mech. The swing arm/cage is incredibly stiff where it connects to the derailleur. I can just about rotate (red arrows) it a small amount but requires a lot of ...
0
votes
3answers
159 views

What are the advantages of a custom frame for a touring bike?

I'm building a new bike for touring while traveling, so I want a break-apart frame with S&S couplers, like the Salsa Vaya Travel, or another steel touring frame retro fit with couplers. I want a ...
1
vote
1answer
63 views

Caliper drop for bike conversion

I'm trying to work out if my current brakes are long enough to work with 700C wheels (ie 622mm rim), rather than 630 (27"). The question I have is, will the wheel sit at the same point in the ...
1
vote
1answer
58 views

Trying to identify some very old Magura rim brakes

I'm looking to identify some very old rim brakes. I bought this bike used, and have now ridden it for enough miles that I strongly feel the need to replace at least the brake pads. No evidence that ...
2
votes
1answer
92 views

How do I identify the manufacturing year of a Surly pacer frame?

I am looking at purchasing a used Surly Pacer. However, the owner is unsure of the year (he also bought it used). Are there any visual cues that I can use to identify the year of the frame?
2
votes
3answers
118 views

Wheel bust after 10 months, is this normal / usually covered by warranty?

Not sure if this is the right place to ask... I bought new bike about 10 months ago. The past few weeks I've had no end of trouble with the rear wheel (Mavic Aksium) in regards to spokes. About 4-5 ...
3
votes
2answers
160 views

Shimano Ultegra vs Shimano Sora

I currently own a 2013 steel cyclocross bike that I use for daily commuting (approximately 1 hour per day). The model I have is equipped with a Shimano Sora groupset. I am considering moving to a ...
3
votes
2answers
112 views

MTB Manufactures and Upgrade-ability

I'm looking to purchase a new bike in the intermediate level and I'd like the option to upgrade all if not most of the parts over time. That said, I've read some concerning articles [sic] and I want ...
2
votes
1answer
50 views

Dawes Super Galaxy - Tubes

I picked up a near new Dawes Galaxy that had been in storage for 8 years. I'm super excited to get on a tour. I have both Lands End to John O'Groats and London to Paris locked in:) The tires are ...
1
vote
2answers
99 views

What is needed to change a set of wheels? + advice RE the cassette size

I've found a set of wheels I would like to put on my bike and have a couple of questions about how easy it is to DIY the job & compatibility. I have a 2010 Allez Sport Triple and want to swap the ...
1
vote
1answer
91 views

How can I stop my shifters slipping when climbing?

I'm having trouble with my rear mech and/or shifters. Under heavy load (say, when climbing) the rear mech is slipping. The two photos below show my shifters before and after a climb. I've not touched ...
3
votes
2answers
131 views

Are Shimano components compatible with each other? Do I have to get a specific chain?

My cycling maintenance experience goes as far as changing tyres, but winter has been cruel and I need to replace some components. Setup: Cassette is a Shimano 105 CS-5700 Front chainring : Shimano ...
1
vote
1answer
99 views

Can anyone identify this Tandem bike I restored from a junk yard?

This is a bike that I rescued from an abandoned junk yard in central California. It was terribly rusted, and I think I am crazy for spending the amount of time and money I did to restore it. I often ...
5
votes
4answers
145 views

How to use a vapor barrier with cycling shoes for cold weather riding?

I've heard many people like to use plastic newspaper bags or grocery bags as a vapor barrier when cold weather cycling. I'm already wearing winter cycling boots which prevent outside water ...
0
votes
1answer
52 views

How much value do groupsets gain/loose per year?

What is the difference in value of a last-year component, and the equivalent one from this year? For example an SLX rear derailleur, an X0 crankset, a Fox Float fork. How substantial is technology ...
2
votes
1answer
153 views

How to jump curbs?

Putting aside the question should one ever ride on the sidewalk, I would like to jump curbs safely and seamlessly. Assume a hardtail mountain bike with high saddle (we are in the city), at speed 30 ...
-1
votes
3answers
193 views

New commuting road bike. Wishlist: discs & electronic gears [closed]

After reading Evans Cycles' blog post the other day about disc brakes on road bikes: ...
4
votes
3answers
106 views

How to buy replacement disc brakes

In looking at replacing my disc brake rotors, and looking online I see there are different sizes available (between 180 and 203 mm). My question is, what dimension do I measure on my existing rotor? ...
5
votes
3answers
277 views

What happens when a bike has not had maintenance for a long time?

I recently traded my Kent BMX bike I got from Wal-Mart: for a Ross road bike ). My friend tells me the bike sat in his back yard collecting rust, I see it has rust on the chain, the gears, brake ...
3
votes
1answer
150 views

Can I use a Center Lock hub and disc brake rotor in place of an ISO hub?

I currently have a regular ISO disc brake hub and rotor on my front wheel. I'd like to replace it with a Shimano generator hub, but all Shimano hubs use Center Lock rotors instead of ISO. The Center ...
1
vote
4answers
258 views

What should I look for when buying chain lube / lubricant?

In the past, I personally have only used WD-40. However, I have occasionally had my bicycle looked over at the locally run, free service sessions and most of the mechanics there use a hand applied ...
2
votes
2answers
68 views

Using a series of hub gears

I have an idea and I'm wondering if it's feasible. For an upcoming recumbent cargo touring build, I wonder if I could say use an 8-speed hub gear connected directly to an identical 8-speed hub gear, ...
1
vote
1answer
64 views

Can I change the rear cassette on a folding bike?

I currently have a folding bike (think Dahon like) with 20" wheels and a front chainring of 52T and a rear cassette of 14-24T. Although 14 provides me with good speed I'd love to get faster speed for ...
-1
votes
1answer
61 views

Shimano ST-3300 brake lever doesn't return fully [closed]

My Shimano ST-3300 brake lever doesn't return completely, leaving a one inch gap instead of being completely closed. It is off of the bike and there are no cables attached. Any ideas? Thanks.
2
votes
1answer
113 views

How do you download OSM maps to Garmin Edge?

How do you download free Open Street Maps (OSM) data on to an SD card for garmin edge 800 / 810 for use in navigation and turn by turn directions?
2
votes
3answers
256 views

Garmin Edge Touring - Quality of the maps [closed]

I currently have a Garmin Edge 200, which I like quite a bit. But I would like a GPS that has mapping capabilities. I don't need the training features. I'm curious about the quality of the maps in the ...
3
votes
2answers
183 views

What is the difference in procedures for bleeding different disc brakes?

I want to learn to bleed my new disc brakes. While there is a wealth of knowledge on the topic, it is difficult to tell the difference between pedantic explanations and sloppy work. In the official ...
2
votes
2answers
80 views

Can I swap a shimano free hub body for a campag one and be able to attach it to the existing Deore hub?

I want to convert my Surly Cross Check into a Campagnolo set up. The problem I am having is i have Shimano Deore Hubs on Mavic rims at present. I would rather not buy new wheels, so I am looking at ...
3
votes
2answers
236 views

Physical limits for a fixie rider

As fixie-biking is really trendy at the moment, i often see fixie riders 'skidding' and stopping their bike by blocking their backwheel. As this only works by shifting the riders weight to the ...
2
votes
1answer
83 views

building a cargo trike (bakfiets): steel thickness

I'd like to build a "bakfiets"; a cargo-trike with the box in front. I've found several resources, but none of them talk about the framebuilding material. What is are my material options; steel? what ...
-1
votes
1answer
92 views

What is minimum period by which my cycles should be service? [duplicate]

I am using a Hercules MTB thriller,I drive a maximum of 75 km per week. When should I schedule periodic, quarterly full service for the bike?
3
votes
1answer
116 views

Shimano 9 speed shifters

I have bought myself a Shimano Deore M592 set without shifters. I am now in the process of getting them as well but am not sure if I can put any 3/9 speed shifter on it. Do I only need to take care ...
6
votes
1answer
93 views

brakes for carbon rims

I'm considering switching from alloy to carbon wheels - just a question regarding that & brakes. Would I need different pad materials from the standard sort of pad material (or even a whole ...
1
vote
2answers
134 views

What causes a wheel to seize?

My rear fixed-gear wheel seized up yesterday on my commute home. I suspect it's the result of my bone-headed adjustment after replacing a broken locknut on the axle (I may not have put the new ...
1
vote
2answers
93 views

Screw cap stuck in adjustable stem connection, how to remove or reattach?

I was trying to detach my handlebar, because lowering was insufficient to make my bicycle fit in my box. I detached the long screw going connecting two lids thereby fastening the stem-handlebar ...
9
votes
4answers
218 views

How can I prevent or mitigate the front wheel coming off the ground when climbing steep hills?

On one of my bicycles (a 2012 Trek Madone 4.7), when climbing very steep hills, I have had problems with the front wheel coming off the ground. This creates an extremely dangerous situation because ...

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