All Questions
20,579
questions
4
votes
1
answer
392
views
Tire flat after 2nd trip on Brand New Ancheer 500W Ebike
Ok, so I am new to biking and don't know squat, as you will soon see. I bought a brand new E-bike, an Ancheer 500W. I borrowed an air pump, but had no pressure gauge when I first aired up the tires... ...
- 41
2
votes
1
answer
81
views
What is the best way to identify a bike part and how to get that information?
it seems the bike industry does not have a common standard or maybe I missed it.
If I want to get a list of all bike parts a manufacturer offers, how would I go about that? Is there EAN I could search ...
- 123
0
votes
0
answers
50
views
Adjust nuts on rear wheel on a mountain bike
How do I mount the rear wheel on my Huffy 26 inch Scout Mens Hardtail Mountain Bike?
I looked at this video, but it is lacking some critical information.
The nuts in the ...
- 1,234
0
votes
1
answer
152
views
Feasibility of upgrading a recent bike from a mechanical to an electronic groupset
A frequently asked question on this site is doing a significant component upgrade on a older bike. The answer is invariably that it is either infeasible, uneconomical, or both.
Now that the road bike ...
- 8,950
0
votes
1
answer
65
views
I put my bike on the bus and now the chain can't stay on
I've never had an issue with my chain falling off until today. I put my bike in the bike holder in front of the drivers window. Perhaps something got knocked or moved?
I could have a dirty cassette or ...
- 1
1
vote
3
answers
86
views
Shifter not working in cold weather
My commuter bike has a 7-speed Tourney groupset with thumb shifters. When commuting today, I arrived at the office and shifted down a few gears before parking the bike as usual. I noticed that the ...
- 3,262
5
votes
3
answers
542
views
SRAM quick link reuse
Sram says that their quick links should only be used once. I've installed new chains, had to shorten them and have broken the link more than once doing so. I've also continued to reuse them when ...
- 5,498
0
votes
0
answers
36
views
Shimano rear derailleur compatibility with 13-32 cassette
I have a Freewheel cassette, 9-speed, 13/32T. Currently, I'm using a MicroNew 9-speed RD and a 9-speed shifter, but both of them aren't great, and I want to replace them.
All I can find is the ...
5
votes
4
answers
1k
views
Is high-carbs consumption during Z2 rides efficient for weight-loss?
I am bit overweight (BMI: 30+, 89kg/170cm), riding regularly 3 times a week, 2hrs/50+km/flat road each time. Rides are mostly in Z2, with occasional Z4 ride (once every 2-3 rides). I enjoy the rides, ...
- 151
5
votes
5
answers
2k
views
For touring bicycles, how much stronger is a 26'' vs 27.5'' wheel
One reason to pick 26" over 27.5" is that 26" has shorter spokes which "require more external effort/stress to bend."
Is it possible to express in numbers (quantify) how much ...
- 301
3
votes
1
answer
150
views
Are all top of the line components always compromising on durability in order to save weight?
It often written that top of the line components are less durable (Dura-Ace and XTR for Shimano), with the explanation that they meant for competition and so they compromise on durability to save ...
- 17.6k
3
votes
3
answers
546
views
Is Mean Time To Retune a major distinguishing factor between Sora and Ultegra?
Having gained experience riding both Sora and Ultegra, I'm puzzled that 2x9 already provides such narrow gaps that I'm entirely comfortable riding Sora (it helps that the cassette is 12-25), and that, ...
- 8,950
1
vote
2
answers
246
views
Blindfolded, can you tell an Ultegra from a 105?
Suppose it were possible to ride your road bike blindfolded. You're experienced riding both Ultegra 8000 (2017) and 105 R7000 (2018) groupsets, and so you ride two bikes that are identical, other than ...
- 8,950
0
votes
0
answers
30
views
Bicycle identification
Years ago I purchased a police lot of bicycles at auction. A couple of BMX keepers. Recently I restored one of these bicycles but have failed at identifying it correctly. I know it is a Redline. I ...
3
votes
2
answers
113
views
Cruiser handlebar rotating because clamp not strong enough
My new cruiser handlebars rotate no matter how much I tighten the clamp on my electric bike.
The bike is a Lectric XPremium: https://lectricebikes.com/products/xpremium-black
Here is the handlebar: ...
- 31
4
votes
1
answer
104
views
What's the power supply for a Saris CycleOps PowerBeam Pro turbo trainer?
A friend is moving, and gave me his old turbo trainer. I've got the body assembly and a head unit, but he couldn't find the matching power supply.
It has a standard 5.5mm barrel connector, but there'...
- 639
-1
votes
0
answers
21
views
What type of Haro is this serial number [closed]
The serial number is x12p5j0948 and I was wanting to know what type and year this is?
- 1
2
votes
1
answer
97
views
Chain rubs on a bigger cog on the cassette. Wrong spacing?
my kids mtb on the smallest cassette cog the chain rubs on the next bigger cog creating a harshness while using this smallest cog. I was looking at it and the spacing between the two smallest gears ...
- 21
6
votes
2
answers
113
views
New Hydraulic hoses sealed
I have a new complete set of Shimano 105 hydraulic calipers and brake/shifters for drops. The hoses are fitted to the calipers the other end of the hoses have the barbs fitted but they appear to be ...
- 61
1
vote
1
answer
29
views
Shimino FC-C201 Replacement
I'm looking to replace the FC-C201 on a 2000 Diamondback Crestview, which uses an RD-C201, FH-RM40-8 rear hub (135mm), and CS-HG40-8I cassette. I've measured the bottom bracket at 68 x 122.5mm. The ...
- 11
6
votes
2
answers
563
views
Cassette for Kickr Core
I’m completely new to cycling, so I apologize in advance for the stupid questions I’ll ask.
I will buy a Kickr Core, to use with a Decathlon Triban RC120 bike (Microshift 2x8 cassette, 11-34T, quick ...
- 161
1
vote
0
answers
52
views
My Upgrade Plans [closed]
About that Nishiki Sport, here are my plans for it:
Phase 1:
Upgrade wheels to 700c from 27". I already have them.
Upgrade brakes to accommodate different size wheels.
Modify to 7-speed ...
- 47
2
votes
2
answers
130
views
Nishiki Sport - Year/Model Upgrade Restrictions?
How do I determine the year model of my Nishiki Sport road bike? I have had it since the 1990s when I bought it at a garage sale. I finally started riding it in 2008/9. I rode it in a 40-mile ...
- 47
4
votes
3
answers
263
views
Confused about the actual difference between flat-bar hybrid and endurance road geometries
I’ve been riding a Specialized Ruby (basically a Roubaix) for over a year, but just had major back surgery (lumbar fusion of 3 disks) and my surgeon suggested I change to a more upright hybrid frame. ...
- 169
2
votes
1
answer
142
views
Rear wheel deflating instantly after pumping
I have a mountain bike and recently the rear wheel has gone flat and every time i pump air into it up to 50 psi it deflates after a few minutes
I also hear air coming out a certain part of the wheel ...
- 21
3
votes
1
answer
119
views
When I press down on my presta valve cap when it is open why is no air coming out
I recently got my bike and it rides great. When I went to pump up the tubeless tires I realized that the presta valve cap isn’t letting air out when I press down on it when it is open. I looked on ...
3
votes
1
answer
134
views
Will this combination of crankset work?
My frame specification for bottom bracket is BSA 68mm.
Would the following bottom bracket and crankset fit together?
cane creek eeWings Mountain (link)
Chris king threadfit 30 bottom bracket (link)
...
- 113
2
votes
1
answer
55
views
Will this replacement derailleur hanger fit my bike?
I have a Bixs Sportivo 2 from more than 10 years ago. Derailleur hanger is broken and I lost the broken piece. I would like to buy a replacement. Can you please look at these images and tell me if it ...
- 151
2
votes
2
answers
101
views
Using Front Derailleur Over the Stated Max Capacity
Im planning to run a 54-36t/34t chainring setup and looking for compatible derailleurs. Looking at shimano claris FD-R2000. It's stated that the total capacity is 16t. Im wondering if it would still ...
- 21
3
votes
1
answer
66
views
How to disassemble rear wheel hub with no lock nut?
Please see pictures. My rear wheel has a Deda Elementi hub which has a Thru axle. I have removed my 11-speed cassette and disc rotor. There is no lock nut on the non-drive side. There only appears to ...
0
votes
0
answers
39
views
Replacement pulleys for Shimano Deore XT RD-M739 SGS derailleur (8sp)
Wondering what replacement pulleys I should get for this type of derailleur.
All details of the derailleur can be found here: https://velobase.com/ViewComponent.aspx?ID=4f90a749-6254-4a37-840d-...
- 183
8
votes
4
answers
3k
views
Are 26'' wheels and tubes a thing of the past?
I'm thinking of buy an expensive touring bicycle.
One of the bicycles has 26'' wheels. (https://www.patria.net/produkt/terra-legendaeres-reiserad/)
The other one has 27.5'' wheels. (https://www.patria....
- 301
0
votes
1
answer
70
views
Can anyone help me identify the model of this Viking mountain bike?
I've had a look online and couldn't find anything on it. I couldn't figure out what model of Viking bike this is, wondering if anyone could help.
- 3
1
vote
2
answers
121
views
Flatbar shifters for 11-speed GRX groupsets
I have a GRX RD-RX810 rear derailleur and I need a compatible (thumb) shift lever for flat bars.
Any suggestions which shifters are compatible for my setup?
0
votes
2
answers
50
views
Are there compatible longer cranks available for Gates CDX CenterTrack (5-bolt)?
I've just purchased a Cube Editor bike that uses the Gates CDX drivetrain. I was in between sizes and decided to go with the smaller one, but it looks like I may have made the wrong choice.
I'm using ...
- 101
0
votes
0
answers
41
views
Brompton Dynamo Light Stopped Working
My Brompton Dynamo light has been working perfectly since I got the bike about 8 months ago (the model is ‘Brompton spanninga dynamo tprbi06033’) however a few days ago when I changed the way it was ...
6
votes
3
answers
2k
views
Does a 3x to 1x conversion make sense for this bike?
My daughter was given a 26" hardtail with a slightly weird setup to use as a utility/commuting bike by a guy whose hobby was to build up bikes from old but unused parts... the crankset & ...
- 163
2
votes
1
answer
334
views
What tool do I need to adjust the brake cable here?
I need to loosen very tight bicycle brakes(pads). This is the only thing running over the cable, have no idea what it is and don't have many tools to begin with so assuming I don't have what is needed ...
- 21
1
vote
1
answer
88
views
How to eliminate flex in derailleur hanger plus Goat Link?
I have a Giant Trance. I have derailleur hanger with a Goat Link to accommodate a large cassette in the rear. Where can I get a custom made derailer hanger made to eliminate the flex with the goat ...
- 11
3
votes
1
answer
762
views
Freehub body fell off. Now it's back on, but big freewheel drag
Update: I managed to slide the freehub + cassette back onto the hub - took a bit of persuasion, but easy once I had the technique. But the freehub now has a significant drag - when I rotate the pedals ...
- 203
5
votes
4
answers
750
views
Front Fork Or Seat Post Suspension
I live in an area with brick roads. This means it's really bumpy and sometimes with small potholes that hurt when I dip into them. I'm looking to buy a new ebike but I can't afford anything expensive. ...
- 53
0
votes
0
answers
44
views
i need help finding a new chain ring (the gears that are in-between the pedals)
I am currently fixing my pacific vector bike and I need to know where to find new chainrings, I can't find any anywhere else.
5
votes
2
answers
1k
views
What's going on with the bonkers derailleur?
My friend changed her tyre with the bike upside-down, struggling to slot in the axle and the derailleur just fell off from pressure with her bare hands.
She is far away so I need to understand what ...
- 463
0
votes
0
answers
52
views
Two click sound when pedaling, chain delayed engagement
Hi All! New owner of Giant Explore E+ here.
Just into the first 100 miles. I noticed my bike is making a clicking sound when I start pedaling from static or freewheeling. This happens both when motor ...
- 1
6
votes
5
answers
785
views
Do increasing flexibility affect bike fit?
Lately I have been train to stretch, few weeks ago i even cant touch my toe.
Before my stretch training, my roadbike feels good NO PAIN at all even for long ride. My position i bit upright, because i ...
- 189
2
votes
1
answer
84
views
Any fixes for pinch bolt crimp refusing to lock in place?
My cable shifter couldn't be secured in place because the stub of the metal shifter clamp keeps sliding over the derailleur's metal surface when applying torque to the bolt.
The clamp, instead of ...
- 21
2
votes
1
answer
49
views
Shigura - Can i use a Shimano XT Lever on A Magura HS33 Hydraulic Rim Brakes
Good day to Everyone,
My Magura HS33 Lever on my ZHI Z3R trials bike broke, and i was wondering if i could replace it with a Shimano Deore XT BL-M775, as i have it stocked on my parts bin.
And if i ...
- 163
14
votes
2
answers
2k
views
I need help identifying this "Mystery Bike" (could possibly be a real ferrari?)
Good day to everyone,
So i have this really old bike.
I don't know its brand and model. The paint is still stock, and it has a Ferrari sticker with the name "Michael Schumacher" and ...
- 163
0
votes
1
answer
25
views
My Shimano EZ fire plus on the right side isn't shifting below 3 and the left one wont shift above 3
The shifters have been doing this since I got the bike a while ago, but the chain is also starting to fall of the gears when I'm riding it. I don't know how to fix this so can anyone help me?
8
votes
2
answers
809
views
Is it unsafe to put a stoker stem on the front?
This year my wife and I bought a used tandem and have been having fun. We like long rides on our singles, but the tandem cockpit is uncomfortable for me. I'd like to put an extra-long stem on the ...
- 183