2
votes
1answer
54 views

Can't setup shifting on Shimano Nexus 7 after unscrewing wheel

I had to unscrew rear wheel to replace inner tube. I haven't fully detached it, just to the moment I was able to replace tube. After reattaching wheel I can't setup gears shifting (that's my first ...
0
votes
2answers
61 views

Bent front-derailleur

I biked to school today with my bike in perfect condition. Locked it up and went to class. When I went to my bike a couple hours later, the derailleur was bent out of position. My bike's front gear ...
-1
votes
1answer
46 views

Shimano Gears won't shift

Basically when pushing the button to shift gear I can only get one speed up and one speed down. I tried adjusting derailer and the tightness on cables but it makes no difference. Figured I'd make a ...
0
votes
1answer
44 views

Maillard Freewheel refurbishing

I have a Maillard freewheel, big cog stamped 10 - 84, which i have taken apart, cleaned, lubed, and reassembled following the excellent youtube by RJ the bike guy ...
0
votes
3answers
87 views

Is it typical for the front and rear gear levers to be reversed?

I recently purchased my first bicycle since I was a kid. The bike I bought has individual gear levers for shifting up and down for both the front and rear gears. I thought it was odd that these levers ...
2
votes
1answer
30 views

Shimano sora 9 Speed rear derailleur capacity

It's 37T here http://bike.shimano.com/content/sac-bike/en/home/components11/road/sora1.html But 31T here http://www.wiggle.co.uk/shimano-sora-9-speed-rear-derailleur-1/#prodbullets Why is the ...
0
votes
1answer
61 views

What symptoms can I expect from two broken teeth on a chainring?

Dealing with chain skipping (but mostly on the smaller chainrings, truth be told) I've wondered how these affect the riding and how many problems and what kind should i expect from these two broken ...
1
vote
2answers
87 views

Why is my big chainring is so scratched form the inside?

I have noticed a lot of scraping on the inside of my Trushift 44T plate. Is it just a function of distance, time and color or is it a clue that something is not working properly? The bike was bought ...
2
votes
2answers
62 views

How to re-tension front derailleur cable

Bike is a mid 80s Miyata with early Shimano 105 components. It's a 10 speed, 5 speed cog and 2 chain rings. I recently had my front derailleur set up again by a good mechanic after it stopped ...
1
vote
3answers
49 views

What are the securing rings on the disc brake pads pin called?

I've misplaced mine, and noticed the other caliper doesn't have the other one. How important are these? I mean, do pads fail or come loose at times, without these safety feature present? Is it ...
0
votes
1answer
67 views

Can I tell if the brake pads are contaminated?

My rear brake never locks the rear wheel even with full pull on the lever, especially going down hill or fast. I can even paddle a bit with the brake depressed. This is a recent issue and sometime in ...
8
votes
1answer
86 views

How easy (or hard) is to move a Rohloff speedhub from one bicycle to another?

I have two 26" bicycles and I am considering investing in a super expensive Rohloff speedhub. I would like to know if it would be possible to easily move the wheel with the rohloff hub from one bike ...
0
votes
2answers
70 views

Can I swap a 29er fork inplace of a 27.5 if I maintain close to the same axle to crown length?

I am looking for some verification of thought process. I have come across a nearly new lower level Diamonmdback 27.5" hardtail MTB. The issue is the front 100mm fork is broken. Doing some online ...
1
vote
0answers
79 views

Help identifying MTB frame

Apologies making ANOTHER one of these threads...Anyhows: Bought a bike third hand, frame has been stripped and painted. Trying to find make & model so I can get some offset bushings for the shock. ...
1
vote
0answers
72 views

What is the name of the manufacturer of this Chinese made bicycle?

I have a Trac (no 'k') Forever 200 bicycle from China (complete with Chinese writing on it). Any idea who the manufacturer is? Is this bike common in China? I can't find anything online about them. ...
1
vote
0answers
51 views

Is it worth completely replacing my track wheelset?

I own and commute on a 2009 KHS Flite100, bought used. Since purchasing it, I have spent around $250 getting it up to scratch, with new tires, pedals, saddle, and other small but worthwhile upgrades. ...
0
votes
2answers
73 views

Frame manufacturer?

I'd like to know the manufacturer of this aluminium MTB frame. It's serial number starts with the letters "AF". Any ideas?
5
votes
6answers
2k views

Unable to pedal when in high gears

I'm a complete novice with bicycle maintenance and have a slight problem. I just picked up a 2nd hand bike as taking part in a charity event this weekend and an unfortunate accident meant my mine was ...
1
vote
2answers
65 views

Using a wider inner tube

I am switching from 700cx40 to 700cx32. I have a bunch of inner tubes that I bought for the old tires and are in the 40mm range, but I don't know anymore what the range is for each (I didn't keep the ...
4
votes
2answers
438 views

Replace rear deraileur without breaking the chain

I currently have a Shimano Dura Ace 10 speed rear derailleur with a 12-25 cassette. For some hilly rides I'd like to change to a 12-30 cassette. The maximum the rear derailleur can handle is 28, so ...
1
vote
2answers
73 views

120 mm fork with a frame designed for 100 mm fork?

I have a Cube Reaction Team 2011. It came with a Fox Alps 32 fork, 100 mm travel (26"). The fork is now ruined and I need a replacement (on a rather tight budget) and I found a good price for a ...
0
votes
0answers
21 views

Crank-set issue

I am having a crankset issue, I have tested by holding both brakes and moving the crank and pedals parallel and pushing down, with each 180 rotation, the crank moves and thuds a little each side. ...
2
votes
2answers
83 views

Relationship between chain tension and chain wear

On a 10 speed road bike, what is the ideal chain tension? I was recently told (by a bike shop) that my rear derailleur should be fully extended (pointing forward) when the chain is between the 2 ...
1
vote
1answer
76 views

Do road bike shoes offer an increase in power transfer over mtb shoes if the sole is a similar stiffness?

Is there an argument against the use of road shoes if your were planning on time trialling and criterium races?
-2
votes
3answers
59 views

Why are there BMX off road races

I was always curious about this, but I never found the answer. Originally I only knew freestyle BMX bikes, but then found there are official races offroad. What is the idea behind this? Sounds like ...
3
votes
1answer
34 views

Pistons are aligned only without pads in

I've reset the pistons (after taking the pads out) of my XT hydraulic brakes, and made sure they do extract evenly when operating the lever. After putting the pads and the wheel back in (and adjusting ...
4
votes
1answer
229 views

Should brake fluid come out of a misaligned disc caliper piston?

I have a shimano XT hydraulic disc brake system. While servicing it I took out the pads an checked the pistons in the caliper and noticed that only one is extracting. After a few pulls on the lever ...
10
votes
4answers
1k views

How much of a difference does giving blood make to recreational cycling?

I intend to give blood at some point this week at my local community centre. How much of a difference is this going to make to the effort required to keep up my usual pace? Or will the difference be ...
0
votes
0answers
41 views

COSMOS ROAD BIKE ? Lets Identify my frame

Vintage Cosmos World Champion road bike Frame height = 57 cm \ 22.44 inches ( measured from the center of the crankshaft to the seatpost ) Frame of Columbus Tubing. Selle Italia Turbo 1985 WC ...
1
vote
0answers
35 views

Front derailleur never alligned

So I'm working with the park tool tutorial but I've done it a couple of times in the past. When adjusting my Shimano Deore Front derailleur (height and rotation) it lines up great but when I tighten ...
2
votes
2answers
109 views

Same tube for 23mm and 28mm tires?

I like to change my tires with the Continental 4000S II 28mm width tires. Do I need new tubes for the wider tires or can I use my old ones from my 23mm tires?
1
vote
1answer
45 views

Why is part of this Derailleur loose? (Sun Tour Cyclone II)

As you can see from this picture, part of my Derailleur is loose. Notice how the gear is not in flush with the cylinder. It has a no other parts (that I can find!) than a threaded screw to go in ...
1
vote
3answers
92 views

Finding the right length of chain lock for my road bike

I am trying to buy a chain lock as I would be leaving my cycle in quite a busy area. I am not sure what length of chain lock I will need if I wanted to secure my bike using a chain that runs through ...
1
vote
1answer
48 views

SON 28 Hub Dynamo “Rotation Lock”?

Good morning/evening/night. I have bought and succesfully installed a SON 28 Dynamo Hub and a Supernova The Plug III on my bycicle. However, when the wheel spins, the Hub Dynamo connectors will spin ...
1
vote
0answers
28 views

Motobecane Sprint Retro Fixie

Question for rebicycling a Motobecane Sprint Blue. I have a desire to rebicycle this Motobecane Sprint into a semi retro style with the orginal theme. In short i would like to purchase the same ...
5
votes
2answers
89 views

3 Speed Front Derailleur can't reach small gear

I bought a new frame and put my old Campagnolo Racing T components on it. The seat tube has a diameter of 35mm and I use the Campagnolo 35mm clamp for the Racing T derailleur. The problem is the ...
1
vote
2answers
58 views

Replacing rubber connection in a bicycle trailer coupling

I salvaged an old bicycle trailer. I have one concern though. The bar that goes from the trailer to the bike, I believe it's called the tow hitch, ends with a small rubber coupling, to allow for ...
2
votes
2answers
40 views

Rounding spoke length calculator results

The spoke calculator gave me the following results left 292.34 and right 290.98. I am going to buy DT Swiss Competition spokes which are sold by 2mm increments from here. So which spoke length is ...
3
votes
1answer
106 views

What is this tool for?

I recently found this in my cycling shirt. I don't know where it came from, and what it is used for. It reads "Simson" on the other side, but I have no clue what I could use it for. Does it have ...
0
votes
3answers
126 views

Why does my Rear bike tire slow down when Pedaling?

I just replaced a flat on my rear road-bike tire. I had also tried to replace the rear axle, By removing the axle completely, to a quick release lock but realized the axle that had been installed with ...
2
votes
0answers
98 views

BB92 (Shimano bottom bracket) with SRAM 30mm crankshaft (X01 or XX1 BB30)?

The frame that I want to build has BB92 bottom bracket hole. The drivetrain I want to use is 1x11 SRAM XX1 or X01 with 30mm crankshaft (BB30)(edit: also available GXP). There are ways to fit it - ...
0
votes
1answer
73 views

Any small bags that mount to seat post?

I am looking for something similar to a saddle bag but that mounts to the seat post and not the saddle. I have a rear mounted camera that attaches to the saddle so want a bag that I can mount lower ...
0
votes
1answer
43 views

Need help choosing rims for fixed gear

I have a Specialized Langster (really old model i think), and it got ran over, well the rims did, and I don't know which ones to get. I wanted to buy the rims and the spokes separate. I would like ...
2
votes
1answer
131 views

Do 16g CO2 cartridges have a shelf life?

I mainly use my road bike during the triathlon season and now that the season is coming back around again, I am finding some old, unused CO2 cartridges from last season (fall). I typically use 16 ...
2
votes
1answer
57 views

Removing and reseating front wheel makes disc brakes rub

I have a brand new bike with Hayes CX Expert disc brakes. When I picked it up at the shop, they had dialed the front brake in nicely so it grabbed pretty quick (i.e. without having to pull it right to ...
0
votes
1answer
64 views

What bottom bracket do I need for a decathlon rockrider 5.0

The bottom bracket on my Rockrider 5.0 has a little too much play in it so I figured it best to change it before I get a failure whilst I'm commuting. Does anyone know which bottom bracket I would ...
6
votes
6answers
1k views

Help for a 169 mile bike ride

I am not a pro and I have never taken a long bike trip before, but I think I am up to it. The trip is not going to be one-go. I'll stop for rest. I am thinking that if I do 10 miles a day, I should be ...
0
votes
1answer
26 views

1996 Mongoose size 19" Crossway 650 replacement size inner tube [duplicate]

My bicycle has a label saying size 19" . What is the tire size for my bicycle and the what is the inner tube size?
5
votes
1answer
116 views

How do internal hubs work

This question is just one of curiosity. I have a hard time visualizing this. How do internal hubs work? Does anyone have a cross cut image that is easy to understand?
2
votes
1answer
85 views

Inner elbow/bicep tendon pain from drop bars?

I've just recently bought a new bike with drop bars for my daily commute. It's great fun and actual feels quite comfortable after following a few fitment videos and guides online. The bike is a ...

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