1
vote
1answer
17 views

a carbon rim cost only $169 is real carbon?

Wanna upgrade my bike to carbon,and find this rim http://www.carbonbikeoem.com/bike-rims/mtb cost only $169,so is this a real carbon?and what is the general price of carbon rims?
0
votes
1answer
11 views

Merida Matts TFS 600 original chain lube

What lubricant does the chain of a Merida TFS 600 bring from its factory? Thanks.
2
votes
1answer
25 views

What would be the best gearing for mountain climbing?

I'm 59, 5'11", 210,and have had a triple bypass. I moved from the flats to the hills, and I want to ride again, but I can't with the gearing I have now. 50/34 chain ring and an 11 speed 10-25 ...
0
votes
0answers
19 views

What kind of bottom bracket fixing is this?

Dismantled my bike to try and take a look at the crank bearing, as I fear it may be getting dry. Unfortunately at the stage pictured I could go no further. The outer and inner rings appear to be ...
2
votes
2answers
23 views

Getting local businesses to install bicycle parking

I live in the far southern community of Nashville, Tn. If any of you know Nashville, it is very late to the bicycling movement. They have some good efforts currently but they are focused in the high ...
0
votes
1answer
22 views

Can i fit a 6 speed wheel onto a 5 speed bike

I have a 5-speed bike with a buckled back wheel and i have found one on the internet cheap but it is 6-speed.will it fit my bike ??
0
votes
4answers
32 views

Shifter Options for 105 3x9 upgrade

I am in the process of upgrading my road bike from 3x9 Sora FD/Tiagra RD with Sora shifters to 3x9 105 FD/RD. Any suggestions on shifter upgrades? Derailleurs have been replaced, have new SRAM 9spd ...
0
votes
2answers
39 views

Replacing Sora crankarm

so I accidentally screwed the wrong side pedal into my left hand crankarm on my Giant Defy 3 2014, and I have been looking to buy a replacement part myself and get a mechanic to install it. I am ...
0
votes
0answers
13 views

Rebound doesn't work on a Rock Shox Recon Air

On my Trek Fuel Ex6 I have a Rock Shox Recon Air fork with rebound valve. The valve has a 2,5mm allen key for adjustment, but it seems broken. The Trek Suspension Setup Guide tells me to set the ...
0
votes
1answer
26 views

Creaky crank problem: Campag 11sp Athena crankset (Ultra torque)

I have an awesome Ridley Noah carbon frame, fitted with Athena Campag 11sp groupo. Recently it's been making a lot of creaky and "pop" noises as I ride up hills (putting more force on the crank ...
4
votes
1answer
338 views

Carbon Wheel Heat Bending

After riding about 800m downhill, I got this: BTW, this is TriAce Wheelset for Dahon Mu Ex 2014. Do you think this is safe to ride? Can I repair this?
0
votes
0answers
29 views

Size advice needed for Revolution Country Traveller touring bike

I'm about to by my first touring bike. I've got a very tight budget so I will probably order a Revolution Country Traveller from Edinburgh bicycle cooperation as it looks like it will suit my needs. ...
0
votes
2answers
42 views

Inner tube popped on back side of the valve - why?

One hour after my first 20-minute ride with new inner tube it exploded with "ps-BAH!" sound. Also, as you can see on the photo, two bulges appeared near the hole. The tire (25mm) allows up to 8 bar ...
3
votes
2answers
98 views

After fall bicycle feels really slippery

I fell pretty bad this winter, and after that (even now without a trace of snow where I live) I feel the bike really slippery, mostly the front wheel. Riding on slightly uneven surfaces makes me feel ...
0
votes
3answers
76 views

Steel rims responsible for slicing tubes?

I have an old Giant dutch bike and it has steel rims. Since I'm a big boy I felt that the 60PSI on the tyres is not enough and pumped my tyres to the maximum of 85PSI which is what my Schwalbe ...
1
vote
1answer
67 views

What to look for in a good entry-level CX bike?

I am in the market for a new bike. It is really my first bike, I am borrowing an old 1980's Cannondale road bike from a friend currently. I have an 8-mile daily commute (1-way, 16 total miles put on 4 ...
0
votes
2answers
54 views

Good bike model, size and condition for beginner? [on hold]

I want to buy new bike for riding both condition on road and off-road, but don't know which model, size or bike's condition to ride and fit my weight and height. Could anyone give me some advise ...
1
vote
1answer
84 views

Upgrading a heavy duty bike

I have been using my bike for about 10 years for daily commuting and occasional traveling. It is a "trekking cycle" with a flat handle bars. I use it mostly for road riding, i.e. on streets and paved ...
0
votes
0answers
38 views

What is the handlebar size for an old road bike?

I have a 1980 Fuji America 18 speed road bike that needs to have the handlebar replaced. How do I determine the handlebar size? It appears that 26mm is the common size for older road bikes - but I ...
0
votes
2answers
75 views

How to avoid getting swindled when buying used cranks?

I'm looking for a cheap, used set of cranks for a bike that was fished out of the garbage :) Because the cranks won't be on a bicycle when I go buy them, how can I tell if they're bent or not? I'm ...
1
vote
2answers
108 views

How much assembly is required when an LBS orders a bike?

I'm looking to order a Marin Lombard Elite from my LBS but I want to replace the FSA BB and crankset with Shimano or SRAM parts, and change to a 52/36. When my LBS orders it, does all of that come ...
1
vote
1answer
27 views

Can any MTB rear derailleur be mounted to a Scott type 1 MTB derailleur hanger?

Can any Shimano MTB rear derailleur be mounted to a type 1 (206375) Scott derailleur hanger. I have a type 1 derailleur hanger with a Shimano STX rear derailleur mounted and like to mount a Shimano ...
1
vote
0answers
38 views

Using PTFE spray on rear derailleur springs

Have noticed that the rear derailleur springs and pulleys are picking up lots of road gunk. I use a wax for the chain and as this breaks off I can see it getting stuck on the pulleys. So after ...
0
votes
1answer
32 views

Can't shift front gear, despite loosening, tightening, etc. What could be wrong?

Disclaimer: I'm clueless and am piecing together what little information I know from reading this site and from watching YouTube 'intro to repair' videos. I've been gifted a used mountain bike, my ...
1
vote
2answers
64 views

Lactate feeling

Something i noticed on my climbs is that i really struggle the first 4 5 km. I feel very uncomfortable and at some point its like my body gets used to the lactate. It's like a switch. I can ride ...
0
votes
1answer
56 views

Fixie chain stuck between cog and hub

I had my chain jump off on my fixed gear when I hit a pothole, and it's gotten completely wedged between the cog and the flange of the hub. I've removed the lockring but can't get a chain whip around ...
3
votes
6answers
238 views

Why bother changing a chain?

I have heard often that you should replace a worn chain, that a chain lasts somewhere between 800-1200 miles, and that if you don't replace the chain on time, you'll need to replace the cassette when ...
2
votes
1answer
37 views

How to increase range of disc brake pistons?

Recently swapped over my disc brake pads, but discovered that the pistons lightly scrape the rotor when not braking, and when I am braking it doesn't make much of a difference and it allows me to pull ...
0
votes
0answers
40 views

Ultegra 6800 VS 6870 Di2 [on hold]

I'm currently using Ultegra 6800 and I'm happy. However, due to the cable slack or weather change, etc., I need to adjust the derailleurs. Mostly, it's a minor adjustment, but sill it's annoying. ...
5
votes
1answer
124 views

What is the deal with the new weird gazelle chain case design?

I was about to buy this bike (a Gazelle Aroyo c7): http://www.gazelle-fietsen.be/assortiment/arroyo-c7 when I realized the chaincase is seemingly deliberately designed so that the chain constantly ...
2
votes
0answers
34 views

Why is my electric bike 'clanking' under load?

I have a Giant Esprit Twist Power electric bike, which apart from not having nearly enough words in its name also has a problem related to the crank. When I put a lot of load through the pedals there ...
6
votes
2answers
816 views

Why are chains sold in fixed lengths rather than by the meter?

Why can't we purchase chain by the meter, in any length, instead of in fixed lengths? Then the chain could be cut to the exact length required, unlike current situation of throwing away several links. ...
2
votes
2answers
76 views

Rear derailleur cable housing length

I've cut my first cable housing using this ParkTool page as a guide. The thing is, I think it's a bit too long. Can I safely shorten it or the length is good as it is now? Update: 7.5cm less, is it ...
0
votes
1answer
30 views

Front wheel Fork is having scratches and Oil is getting leaked from it?

I thought that it might be a fault of Oil seal but Mechanic was telling that I have to replace both the fork If I replace only the Oil & Oil seal then again It will leak oil. Is it a dangerous ...
0
votes
1answer
57 views

What is the cause of earlier rear wheel lock-ups in the wet?

I have faith in Sheldon and Jobst's arguments about hydroplaning. I do not understand the action of a wheel locking up (entering a skid), other than the intuitive level of braking ~> locks up / ...
1
vote
1answer
40 views

Tyre size and Turbo Trainers

Are there any advantages in having a 700x25 tyre over a 700x23 when using a cycle trainer? If you are "training", resistance is surely not a huge deal breaker. I assume cycle trainer tyres last a ...
3
votes
2answers
80 views

Converting from square spline to external bearings, what do I need to know?

I need to replace the entire drivetrain on my circa 2000 MTB commuter. Quality groupsets all seem to use external bearings these days. Replacing my current cartridge bottom bracket for a modern ...
0
votes
0answers
30 views

Is BMC PRO MACHINE SLC01 2009 compatible with Ultegra Di2?

Currently I have Ultegra 6800, but I want to upgrade it with Ultegra Di2. My frame (BMC PRO MACHINE SLC01 2009) compatible with Di2?
2
votes
0answers
43 views

Does a Sturmey Archer 2 speed kick shift hub let you backpedal?

Does a Sturmey Archer 2 speed kick shift hub let you backpedal? A backpedal / coaster brake changes riding technique so much it drives me nuts; I am wondering if you can backpedal at least enough to ...
0
votes
2answers
77 views

Will electric heaters degrade bicycle tires?

Is it safe to store bicycle tires near electric heaters? I'm wondering if the heat will degrade the rubber somehow. More specifically, I'd like to store my bike near the electric baseboard heaters ...
0
votes
1answer
47 views

Which bottom bracket do I need to replace crank on a Trek FX 7.1?

I have a Trek FX 7.1 that I've rode for several years now and replaced parts as they've worn out. Now I'd like to upgrade the whole drive train with Tiagra 2x10 flat bar shifters, derailleurs, crank, ...
0
votes
0answers
31 views

How does the seatpost binder bolt work on a Vanmoof?

Vanmoof bicycles have the seatpost binder bolt/mechanism that is hidden inside the top tube. Does anyone know how it works? Does it have a way of preventing water from getting into the frame from ...
0
votes
0answers
35 views

How durable are the lights on a Vanmoof?

Can anyone report on how durable the philips lights built into the frame of a Vanmoof city bike are? I can't tell if being (partially) inside the top tube will protect them, or make them more ...
0
votes
1answer
38 views

What kind of brake pads for Dia Compe centre pull brakes

I have some Dia Compe center pull brakes shown below. I was wondering what the best type of brake pads are to use for these brakes. Looking around at pictures on the internet, many people use ...
1
vote
1answer
29 views

Can I convert my velocity 9-speed rear road hub to bolt-on?

I have an older velocity wheelset with their standard 9-speed road hubs. Can I convert these hubs (particularly the rear hub) to bolt on?
2
votes
1answer
95 views

Lots of chain slack… Time for a new chain? Bad derailluer?

I got home from a short ride up the street today where there was a lot of clicking and skipping of chain links and when I got home I realized my chain had a ton of slack. After looking around on the ...
0
votes
2answers
76 views

Face gets extremely red when biking in the cold ~5c, and then going indoors, due to temperature change maybe

Face gets extremely red when biking in the cold ~5c, and then going indoors, due to temperature change maybe. What can you wear when biking to prevent this problem, and could you link to a site? ...
0
votes
0answers
54 views

Preventing red eyes after biking

When biking, your eyes get red. Guessing due to dryness. Usually, people wear sunglasses or glasses to block out the wind. Wearing them didn't help. Still red. Maybe more red if you weren't wearing ...
8
votes
3answers
656 views

How are these plastic rings used on my Shimano disk brake mount adapter?

I boughtt a Shimano SM-MA-R160 Disc Brake Mount Adaptor for my bike. It came with these black plastic things in the lower right corner of the photo below. I have a bunch and don't know what are they ...
0
votes
1answer
33 views

Upgrading From Shimano 8 Sp Alivio To Shimano 9 Sp Altus

I have an old giant warp D's 2 bike that's about 10 years old. I've maintained it and it still rides good and looks just as good. I wanted to upgrade from the old alivio 8 speed drivetrain to either a ...

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