8
votes
8answers
2k views

How can I safely go downhill on an antique penny-farthing bike?

I recently picked up a vintage penny-farthing (high wheeler) at the flea market and, after restoration, adopted it as my normal mode of transportation. It works well for the most part, but going ...
0
votes
2answers
51 views

Frame manufacturer not covering crack as saying it was crash damage

My Ti frame developed a huge crack in the frame a week or so ago. A pain I thought bit it'll be covered by warranty... The frame builder is now saying that it's crash damage. I really really doubt ...
0
votes
2answers
34 views

Does removing spacers require a refit?

As I get more and more used to my bike's aggressive geometry, I'd like to slowly remove the spacers. I have two right now and my LBS who did the fitting said you can remove them as you get more used ...
5
votes
4answers
3k views

'Best' Gear inch to start with on a fixed gear? Moderatley hilly area

For a starting fixie rider, what is there a 'best' Gear inch to start with? Moderatley hilly area.
1
vote
1answer
46 views

Modded folding bike and strange chain skipping on most gears

I've a folding Tern Link D8 that I've started customize by replacing some parts...what is driving me nuts is a strange chain skipping that happens on some gears and only when I apply some force (...
9
votes
9answers
15k views

Can Garmin Edge 500/510 and 800/810 be charged while riding?

Extended battery life is very neccesary for using the device on long brevets and multi-day endurance racing. Can Garmin Edge cycling GPS units 500/510 and 800/810 be charged while riding via external ...
5
votes
1answer
244 views

Are all folding pedals a bit… bendy?

I have recently acquired a folding bike. One of the most irritating things is the folding pedals, as pictured: Pedal in folded position Pedal in deployed position, ready to ride Close up of ...
0
votes
0answers
27 views

Changed shifters and chain isn't in same spot

My friend changed out the shifters on his bike and his rear derailleur isn't on the right sprocket based on what his shifter says. How can you fix this?
2
votes
2answers
62 views

Bottom bracket creak

I've recently bought a second hand carbon bicycle. The bottom bracket was making a creaking sound under pressure, so I took it to a shop and they put in new bearings. But after 1 or 2 cycles it was ...
2
votes
1answer
37 views

I slightly wrecked my bike - looking for parts - how do I start?

2003 or 2004 Specialized Sirrus DISC - my son ran into a parked car and now I need a new front wheel, rotor and fork. The whole thing is silver, Chromoly. I love this bike, it was a trusted commuter ...
0
votes
0answers
26 views

Shimano Alfine wheel build questions for Crawler fat bike

I have an Origin 8 Crawler fat bike that came with a Nuvinci 360 hub. The Nuvinci lasted about 1500 miles and is now leaking oil and wobbling. I'd like to build a wheel with an Alfine S7000 and stay ...
5
votes
3answers
11k views

Upgrade Shimano from 9- to 10- speed

I'm thinking of upgrading the 9-speed Tiagra rear mech on one of my (road) bikes to something, still Shimano, but 10-speed. The obvious replacements I'll need are cassette, right-shifter and chain. ...
18
votes
7answers
23k views

Does this chainring need to be replaced?

Here is a closeup of my triple: All three rings are Shimano Ultegra and have never been changed. They probably have at least 12000+ km on them. I've been pretty good about changing the chain ...
5
votes
2answers
403 views

How can I fix my rear derailleur's B-tension adjustment?

I've noticed that my rear derailleur (Ultegra 6700) will not return to where I've set the B-tension adjustment. Pulling it away from the hanger means it will just stick there, or maybe move back a ...
6
votes
3answers
146 views

What's the strongest way to bond a cable stop to an aluminum frame?

I recently picked up another well loved GT road bike frame- it's in great shape aside from a missing downtube cable stop. The model is a ZR 4000 probably from 1999, it's 7005 heat treated aluminum. My ...
2
votes
0answers
31 views

How strong is the remote lockout on rock shox?

I ask because I realized yesterday that I had left lockout on for hours of riding at a bmx style track hitting jumps and wallrides. I found the lockout helped a lot and I'll continue using it for ...
8
votes
39answers
6k views
+50

Community Wiki: Which public transport networks allow you to transport a bike?

In the UK I have never seen a public bus system that allows you to take a (non-folding) bike on the bus. (There are long distance coaches that do allow bikes, however I am asking about local busses.) ...
-4
votes
0answers
43 views

Do you know this brand?

Hey I'm trying to find the name of this brand. It is a BMX Bike, I am familiar with most brands and their logos, but not this one. Can anyone help?
5
votes
7answers
196 views

Electric bike rear wheel spokes breaking

I have an electric bike with a 500w rear hub. The spokes have broken twice in the last month on the hub end of the spokes.The spokes are bent at the hub end and threaded. This is where they break. ...
29
votes
5answers
13k views

Does the chain direction make a difference?

Recently, I helped a friend install a new chain on her road bike, and for the first time read the instructions for installing one. It seems to claim that there's a forward direction, and that it ...
1
vote
4answers
574 views

What is different about cycling in London?

Prologue I cycle in Toronto, Canada: which has wide straight roads, bike lanes, bike paths, no traffic on residential roads etc. My brother lives near Brixton: he doesn't cycle himself, and says ...
0
votes
3answers
168 views

Mongoose stamped vs. unstamped

What's the difference between a Mongoose that has logo stamped on frame and a Mongoose with no stamp on it?
0
votes
1answer
46 views

Choosing new tires: can't find my size on schwalbe site

My bycicle is Merida Crossway MD-40. I Measured the tires and got the following numbers: 701mm x 41mm. Or 27,42 In x 1,6 In. I wanted to buy one of Schwalbe tires for it. But to my surprise my size ...
0
votes
0answers
25 views

Semi-slick 29x2.4 (or larger) tires [on hold]

I have a set of Velocity Dually 29” wheels. The interior rim width is 39mm. I currently have Surly Knard tires but get a lot of buzz when riding on pavement. Ideally, I'd like a set of tires that run ...
4
votes
3answers
22k views

When do bearings need to be replaced?

How do I know when bearings need to be replaced? Should I go by time? Or is there a symptom to guide me?
1
vote
1answer
36 views

Do I need a different bottom bracket?

I have a road bike that has a triple chainwheel setup (48x38x28)in which the chainwheels are not replaceable. (Made by SunTour) The middle chainwheel has broken a tooth so the whole thing needs to ...
1
vote
2answers
96 views

Make rim braking efficient

I have rim brakes on my bike both rear and front, but have been lately decreasing in efficiency, making weird noise when I brake hard and the braking distance has increased too. Neither my brakes nor ...
3
votes
2answers
110 views

How can I check if my bike is safe for touring?

I have an old second-hand bike that I use daily for commute, and in a few weeks I want to take it on my first bike tour around Europe. I'm a bit worried, since the bike is quite old (has some rust ...
1
vote
1answer
49 views

Headset wobble after tightening

I own a Cannondale Super Six 105 (Ultegra now) Carbon 2012 bike and I can't stop the wobble in the headset. If I tighten down the top cap (with 6mm hex) I can get rid of the wobble (hands on the ...
4
votes
2answers
351 views

Why do my pedals shake and pop?

I just purchased a cruiser bike online that I had to assemble. When I rode it for the first time, I notice my pedals felt shaky, whether pedaling or coasting, and when I did pedal every few seconds ...
5
votes
1answer
257 views

Flashpoint FP80 / SRAM S80 - rear hub specifications?

I'm looking for the specs of a SRAM S80 rear wheel hub. I dearly wish to replace its 9/10-speed freehub body with one that can accomodate Shimano 11-cog casettes. SRAM S80 was a 80mm-profile aero ...
2
votes
0answers
47 views

What kind of German bike is this?

I want to buy this second-hand bike but the person selling it lives in a different city and I can't go there at the moment. However I can't explain it but I really like the bike even though I only ...
2
votes
1answer
397 views

Garmin 510 lost data

I rode the Georgia 3 gap bike ride yesterday. For me almost a lifetime accomplishment. I used a Garmin 510 and when it reached 22% I plugged in an external charger. The screen continued to indicate ...
1
vote
1answer
29 views

Can I convert a 1x9 speed Madsen kg271 cargo bike to a 2 or 3 x 9?

I know most these days seem to want to go the other direction, but my partner would like more gears on this heavy cargo bike that can be tough to pedal uphill. I think the frame has all of the ...
0
votes
0answers
40 views

rec: lightweight, breathable, waterproof bicycle commuter backpack [on hold]

I own a bike and I'm looking for something like this: Bicycle Backpack Travel Rucksacks Road Cycling Bag Knapsack Running Mountaineering Packsack 12L-in Backpacks from Luggage & Bags on ...
3
votes
2answers
53 views

What is the advantage of a “compact crankset” vs changing a chainring?

It seems that I'm old (my last good bike had a 5-speed freewheel and shifters mounted on down tube braze-ons - they were indexed, though!), and I've been out of cycling for quite some time. I've seen ...
4
votes
3answers
5k views

Can I drop-in a compact crank set with my current 105 groupset

I live near a lot of hills and am fairly new to biking. In my lowest gear I still can't keep up at an efficient pedal rate on the hills. I found out they sell "compact cranksets" which in addition ...
1
vote
1answer
56 views

Indexing 6 sprocket rear derailleur, having trouble reaching largest sprocket

I'm trying to index my rear gears after replacing my 6 sprocket freewheel. I've set the limit screws fine, but I didn't have enough play in the barrel adjusters to make much adjustment, so I undid the ...
1
vote
0answers
31 views

The sprocket wheel on my Shimano Nexus 7(SG-R46) no longer rotates freely when free-wheeling my bike

The hub has just been serviced at a bike shop. With the bike on a work-stand, the rear wheel rotates when I turn the pedals backwards. There is a lot of resistance if I hold the wheel and turn the ...
8
votes
4answers
387 views
+50

Bike pulses while applying the front brake. I'm unsure what the cause is

Once per rotation of the front wheel, when braking, the bike pulses under me. The brakes are calliper rim brakes. Swapping wheels out fixes the problem - so it is definitely wheel related The wheel ...
3
votes
3answers
4k 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 ...
17
votes
1answer
17k views

What is the difference between different types of disc brake pads

I've seen several different descriptors for disc brake pads: Metallic, Semi-Metallic, and Organic. What is the difference between these types of disc brake pads?
8
votes
1answer
1k views

Found at an Estate sale [on hold]

I have an opportunity to buy this bicycle. No idea what it is or what its worth. Any help would be appreciated
5
votes
1answer
33 views

Replace my stock crankset and cassette for a 22-32-42t crankset and a 11-40t cassette on recumbent trike?

I am leaving on a coast to coast tour starting in Florida and ending in California this November. I have a Catrike Expedition with a 30-39-52t Truvativ Elita and a 11-30t cassette with a 26" rear ...
4
votes
2answers
207 views

Need I mount my wheel flush to the top of my fork ends?

Using 28c tires with a recently purchased carbon fork, I found I had only ~1mm of tire clearance from the top of the brake caliper. However, if I mount my wheel slightly lower in my fork ends so that ...
1
vote
3answers
74 views

Stripped threads on left crank on the first ride

I just purchased a new road bike and had a friend assist me in the assembly. There must have been a problem because it fell off after only 2 miles of riding for the very first time. I used a pedal ...
2
votes
3answers
4k views

My bike after a new spray paint, gets scratched easily

I completely sandpapered my bike a few months back and repainted it with a coat of primer first, and then matt black. The paint was sprayed only after sandpapering the bike with the appopriate gritt ...
39
votes
5answers
7k views

Leaving lock on the parking rack - is this rude?

We have a bicycle parking rack near the office building. It's rather large: for about 30-35 bikes. Someone has left their lock (chain or whatever) locked around one part of the rack. So, I've got ...
5
votes
2answers
179 views

Inner tube blows up due to rim holes

I've decided to cycle to work and got myself a new bike. When the bike arrived I inflated the tyres to 80psi (20 below recommended) using a track pump. Instantly the inner tube blew up. I thought the ...
1
vote
1answer
72 views

When should a disc brake be replaced?

I've had my bicycle for about three and a half years. I use it just about every day, for a total of 30 kilometers of commute a day. The problem is that my disc brakes have started making weird noises ...

15 30 50 per page