0
votes
2answers
62 views

Can an imperfect hub make a disc rotor rub?

I had a 160mm disc rotor on a road bike that was rubbing a bit in one spot, not severely, but enough for me to notice. I've tried to true it a few times over the past couple months with little ...
2
votes
3answers
123 views

Mountain Biker wanting to change to cyclo or road? Which one? [closed]

I ride an inexpensive Trek modified mountain bike and I spend some of my ride on the road and some on the canal, which of course is rather flat. Sometimes at the mid point of my ride I will decide to ...
1
vote
1answer
92 views

How can I tell where the damage is in the hub?

I am pretty new to bicycle maintenance. I've replaced brake cables, and patched tubes, but not much else. This week my plan was to clean up my back hub, because the wheel hadn't been turning as ...
1
vote
0answers
53 views

Considering Cassette Upgrade [duplicate]

I'm considering upgrading from a 9-speed, 12-26 cassette on a 2006 Lemond Alpe D'Huez. I have a triple front chairing with a Shimano 105 groupset, with one exception - an Ultegra rear derailleur. ...
1
vote
1answer
64 views

Chain keeps slipping

I was pedaling my bike, the bike has never been used and sat in the garage through winter. While I was pedaling I switched gears and adjusted the pressure I needed to pedal (don't know what this is ...
6
votes
1answer
285 views

How does a quill stem without a front bolt work?

Looking at quill stems I noticed this rather curious one and I couldn't imagine how it secured the handlebars without an apparent bolt. Any ideas? more images
1
vote
0answers
30 views

Buying Brakes for custom kick scooter with 12" diameter bmx wheels

I need to buy brakes for a custom kick scooter. The steel tubing of the entire frame is 1" in diameter. How do I know what size brakes to buy?
3
votes
2answers
182 views

Presta valve won't let air in on a new tube

During a ride I had a flat tire and used a brand new Joe's tube with sealant. For the first time in many years of riding i was not able to pump air in. It appears that the pin inside the valve won't ...
1
vote
0answers
28 views

Fork leaking oil?

After finishing my last two rides on my second hand bought bike, I've noticed both stanchions appear as if they are leaking oil Could it be just WD residues or excess suspension oil?
2
votes
2answers
114 views

For 'classic' cantilever brakes, are cartridge brake shoes better than non-cartridge ones?

What are the advantages of cartridge brake pads compared to non-cartridge ones? Do they offer better braking characteristics? I'm about to replace brake pads on a 1994 MTB which has Shimano STX ...
1
vote
1answer
89 views

Can anyone tell me the year of this Kona road bike?

Or any details! I know it is an older Kona bike and would like to sell, but would like to provide buyers with details. Thank you
2
votes
0answers
66 views

Shimano 105 ST-5500 gear sensor mechanism

I have a special question. I have a pair of Shimano 105 levers and I would like to know what short of mechanism is inside the shifter in order to track what gear it's on? Is it a potentiometer? Or ...
0
votes
2answers
154 views

back tire keeps going down

I have just bought a new bike and had it about a month now. I don't really know much about bikes but I do know how to repair an inner tube. I have had one puncture and just bought a new inner tube. ...
3
votes
3answers
757 views

Replacing an 8-speed cassette with a 9-speed one to make my bike faster

I'd like to make my 8-speed tokyobike Classic Sport city bike go faster so I'm considering replacing the 8-speed cassette with a 9-speed one which can be found on the tokyobike Sport. The bike has ...
2
votes
2answers
92 views

Shimano short cage rear derailleur capacity

Can an Ultegra or 105 short cage RD handle a 30T ?
0
votes
1answer
48 views

determining make model and year of a BMX frame

is there a specific website where I can simply enter the bicycle serial number to determine the make model and year primarily BMX frames
0
votes
1answer
48 views

Need help picking the right rear derailleur and chain for Giant Escape 2

Product page for the bike i have: http://www.giant-bicycles.com/en-us/bikes/model/escape.2/14810/75679/#specifications I'm not able to make sense of the variations of shimano altus derailleurs, ...
0
votes
1answer
57 views

Freewheel sprocket locking up

I was just out riding my bike. Its nothing fancy, just a €300 single-speed with with a flip-flop hub. I usually ride the freewheel side. Today it made some weird noises and decided to lock up / be a ...
1
vote
1answer
105 views

Electric Bike (eBike): Freewheel or Regenerative braking?

Not asking for opinion which one is better, so please do not state without some reasons why one is better than another on eBike. Question is: Freewheel or Regenerative braking is more efficient in ...
1
vote
0answers
70 views

Sachs- Huret derailleur (re)installation

Sachs - Huret derailleur installation So the learning curve continues on the '85 Peugeot P-16. The main lessons are to take pictures and time getting each thing done. I have the rear derailleur ...
1
vote
0answers
58 views

which multi-speed hub should I upgrade my trek district to

So my rear freewheel hub broke on my single speed belt driven (no metal chain) trek district. Since I have to replace the rear hub, I'm thinking of replacing the rear hub with an internally geared ...
1
vote
1answer
63 views

Carbon-wrapped Aluminum seatpost?

I have the seatpost shown in the pictures below. It came on a 2010 Specialized Tricross. It looks like Carbon fibre on the outside, but when you look at the open end of the tubing, it actually looks ...
0
votes
1answer
54 views

Ambidextrous backup downtube shifter for touring?

I'm heading out on a long tour soon on a bike with Shimano STI shifters. That choice was intentional as I don't like bar-ends. However, I notice the gear cables run through stops at downtube shifters ...
0
votes
1answer
85 views

Should I stick with my Stolen (brand) BMX or should I build my own bike? [closed]

I live in Greece and I am 13 years old. Recently I found a Flatland frame and thought about building my own bike. Should I build my own bike or should I stick with the Stolen BMX I already have? I ...
1
vote
1answer
122 views

What year is this Specialized Stumpjumper FSR?

I'm interested in buying this, but was curious as to what year the frame is? Any help would be much appreciated.
2
votes
1answer
88 views

Should disc brake rotors be removed when packing bike for travel?

I've been looking at a few tutorials on packing a bike to take it on a plane, and most of them make no mention of disc brakes. One did specifically mention disc brakes, and recommended taking the ...
2
votes
0answers
38 views

Are there any Male to Female DI2 wires / exetensions?

I know you can use a junction port (ie: SM-JC41 Internal Junction Box B) for this, but are there any Male to Female extension cables? Root Cause: R600 to 5 port junction for a TT setup near the base ...
2
votes
2answers
102 views

Will two spacers between the cassette and the hub effect the chain line?

So I have a set of custom wheels (White Industries T11 hubs) and when the cassette is correctly fastened to the hub with the single spacer provided the cassette cogs can be moved in the direction ...
2
votes
2answers
73 views

How many spacers I can put on a Shimano hollowtec 2 BB for a 68 mm BB shell

My bottom bracket shell is 68 mm English thread. I put a 1 mm spacer on the drive side BB to move the chain rings further away from the frame, so to prevent the chain rub against the inside of the ...
2
votes
1answer
52 views

Missing lock nut part

Not sure what to call it, but a couple of my wheels are missing the grippy washer thing that sits on the lock nut. They seem to be attached to the lock nut to begin with, but they just fall off after ...
0
votes
0answers
30 views

What type of grease to use as general purpose bearing lubricant? [duplicate]

Lithium grease, white litium grease, graphite grease, carbon grease, SRAM`s Liquid O-ring. And those are only the types of greases I have heard about. What type of grease would be suitable for ...
1
vote
0answers
45 views

Specialized Brain problem

I have been searching for a while regarding a problem with my Specialized Brain. Here is the story.. I bought a 2008 Specialized Stumpjumper Expert 2nd hand and immediately noticed air in the shock. ...
1
vote
1answer
70 views

Alleviating pressure from coccyx with padded shorts

I recently started biking again after 5 years. However, I had endured unusual coccyx pain when I had a longer than usual ride (~11 miles). I even had my skin chafed/torn where the tailbone meets the ...
2
votes
2answers
88 views

22 to 11 speed conversion?

I have a bike equipped with a SRAM 22 speed groupset (hydraulic) and was thinking about converting it to a 1x11. I like the simplicity of the 1x11 system and the potential weight savings from removal ...
5
votes
3answers
310 views

Does cycling make one's knees stronger?

I'm wondering if riding hard strengthens the knee or causes degradation? I exercise regularly and am in solid physical condition. When strength training off of the bike, I do a lot of leg work ...
3
votes
2answers
202 views

Rear wheel rubs frame/cage while pedaling standing up

I've heard (and noticed) the rear wheel rub on the frame and front derailleur cage when pedaling standing up. The frame shows some paint wear at one spot. And, in the lowest gear, if I crank hard, I ...
1
vote
5answers
185 views

Period of adaptation between a mountain bike and a road bike

I am a casual rider and I am starting to consider switching from a mountain bike to a road bike. My main concern is that I don't ride enough to adapt to a road bike and thus is not worth the switch. ...
1
vote
0answers
24 views

Fork damper circuit reconditioning

I have a rockshox Dart II from 2007. I have recently rebuilt it for the first time in 9 years as it had basically locked up, and not so surprisingly given its neglectful treatment, its still not ...
11
votes
3answers
224 views

What is the best way to approach train tracks?

I commute on my bike through an industrial area and cross many train tracks. They very in degrees: most are perpendicular to the road, but some have a very low angle. This question is two part: ...
11
votes
4answers
956 views

Do certain makes/models/types of bikes get stolen more than others?

I was reading this article on the most commonly stolen cars, and having my bike stolen recently, I got to thinking: do certain makes/models/types of bikes get stolen more than others? My bike was a 15 ...
9
votes
4answers
804 views

Why aren't hub/drum/roller brakes suitable for touring?

I've got a Dutch town bike with Shimano IM80 roller brakes. They're brilliant. Maintenance free, clean, and effective. I've been looking at getting a long range touring bike for an initial 3 month ...
1
vote
1answer
53 views

Easiest way to remove a chain master link / masterlink

When I'm breaking a chain with a master link (to remove the chain from the bike), usually I can do it with my hands by pushing the links together until the master link comes apart. But sometimes it's ...
1
vote
1answer
100 views

Mud buildup at the chinstay near FD

General question: The rear tire of my mtb runs too close to the chainstays. If the trail is even remotely muddy, the mud buildup on the chainstay clogs the front derailleur and the chain begins to ...
0
votes
1answer
71 views

Converting 80s bike to indexed shifters

I've just bought an early 80s steel framed bike with unindexed stem mounted shifters. As I plan to use the bike for commuting, I'd like to change the rear mech to use trigger shifters. I'm not so ...
1
vote
2answers
64 views

Ksyrium Equipe wheels any good for Cyclocross?

Just got a pair of Ksyrium Equipe with a second hand Sworks Tarmac. Thinking of putting them on my Ridley for some Cyclocross action. Has any one used these wheels for this purpose before? I have use ...
3
votes
1answer
52 views

Campagnolo Record C9 / Shimano CS-HG200-9 incompatibility

I drive cheap Shimano cassettes together with Campagnolo Record C9 chains. Yesterday I installed a new C9 and a CS-HG200-9. But the chain sort of slips over the sprockets, not unlike really worn ...
2
votes
1answer
46 views

Bottom bracket length without knowing front chainline (fixed gear)

I'm wondering if I can find the right bottom bracket axle (or spindle, whatever it's called) with knowing my crank model (Gipiemme Dual Sprint, Velobase says BB should be 113mm) and rear chainline (I ...
3
votes
6answers
710 views

What is the easiest to upgrade my chainrings from a double to a triple?

I have a 2007 Specialized Tarmac Pro Double and I need some better gearing. I am doing more hill climbs and I feel that I need at least two lower gears than I already have. What would be the most ...
4
votes
3answers
165 views

Fundamental principles of tire friction for off-road biking

This is a two-part question. I've been watching various videos and getting various advice about mountain bike cornering. My impression is that all of the advice cannot be true, because the advice, ...
1
vote
2answers
84 views

One crank arm won't come off

First time taking the cranks off. The bolts, chinrings and drive side came out easy. Left is stuck. Should I open, pull or do something particular for it to come out?

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