眩晕症吃什么好
百度 要把深入学习贯彻全国两会精神与加强党的政治建设紧密结合起来，与贯彻落实习近平总书记对四川工作重要指示精神紧密结合起来，与全力配合做好中央巡视工作紧密结合起来，迅速掀起学习宣传贯彻热潮。
A cluster of sprockets, commonly 5 to 12 of them, attached to a freehub on the rear wheel.
21 questions from the last 365 days
4
votes
4
answers
633
views
Replacing an old racing bike transmission : same component or newer ones?
I need to replace the complete transmission of a racing bike from the late nineties (Trek 2100 ZX carbon series) and wonder if I should better buy the same components (either new or in fair condition),...
- 141
8
votes
3
answers
1k
views
How to prevent chain from falling when pedaling backwards?
When pedalling backwards chain falls from front single sprockets.
It happens only when on rear cassette chain is on the smallest cog.
Any suggestion ?
Image shows a moment before the chain completely ...
- 1,202
3
votes
1
answer
154
views
Matching crankset and chainring to boost cassette
I'm building my first non-child MTB with Chinese branded parts from AliExpress, because of the customizability (read price). I've already ordered the frame, fork, headset and hubs and I'm pretty ...
- 163
4
votes
1
answer
186
views
Lockring of the cassette rubbing on the derailleur hanger, what could be the cause?
I recently bought a new commuter, and some strange creaking noise appeared and I started to experience ghost shifting. After having checked the usually suspects I noticed that the cassette was in fact ...
- 26.3k
0
votes
1
answer
85
views
Cassette very wobbly
My cassette wobbles alot. Is it just cassette play or is there something more serious?
I did try taking the cassette off then checked if it's the hub but I couldn't feel any play. Not even a little.
I ...
- 1,201
0
votes
0
answers
60
views
is this cassette tool same as Park FR-5.2
I have this cassette tool. Is it the same as park fr5.2 ?
Authentic Park FR 5.2 tool for cassette lockring:
- 1,201
0
votes
1
answer
38
views
What cassette do I need for kick r v5
I brought a second hand wahoo kickr v5 smart trainer.
Sadly my existing bike is only a 10 speed so I need to change the cassette that's on it
I don't have a cassette removal tool. Judging by the marks ...
- 1,201
3
votes
4
answers
1k
views
Are these chainrings or cassette cooked? 3 year old road bike
No idea how many miles are total on this bike. It's been casually ridden over 3 years. Do either the chainrings or the cassette need replacing? Thanks a lot :)
- 245
1
vote
1
answer
50
views
Can I use an 11-25T cassette with a Tiagra 4700 GS (medium cage) and a 52-36 chainring?
Can I use an 11-25T cassette with a Tiagra 4700 GS (medium cage) and a 52-36 chainring?
According to Shimano’s website, the minimum low sprocket (largest cog) for the Tiagra RD-4700-GS medium cage ...
10
votes
6
answers
2k
views
How do you determine whether a new chain has been lubed or waxed?
No one seems to provide a specs sheet entry mentioning whether a new chain (on a new bike) has been lubed or waxed at the factory.
Absent such a specification, what is a test that you can perform on ...
- 11.4k
1
vote
1
answer
121
views
Weird amount of ball bearings in rear wheel?
I have two bikes, both are Treks. One is a 1.1 and the other a 1.2
I took apart the wheel hubs, and the rears have 3 rows of ball bearings, however the 'drive' side where the casette is has two rows ...
- 109
5
votes
2
answers
222
views
Can a 2x chainring be used as a 1x if the smaller inner chainring is removed?
I have a praxis 2x chainring that is 52/36. If I remove the 36T inner chainring and of course the front derailleur will the drivetrain work still? I am not sure if the chainring is too far out to be ...
- 51
2
votes
2
answers
365
views
Determine dropout spacing for vintage bike frame online
I've been trying to find a decent steel-frame mountain bike on Facebook marketplace, and there are many catalogs available with specs like this one. However, so far as I can tell they only give the ...
- 2,061
4
votes
4
answers
2k
views
Chain skipping when pedaling hard
I need some help understanding how to solve the issue of chain skipping in my bike. The bike is a KTM ultra Flite from 2010 with 9-speed cassette Shimano HG50, rear derailleur Shimano Deore XT Shadow ...
- 93
3
votes
0
answers
149
views
Is my derailleur pulley just out of positioned or bent/broken? Just purchased my first bike
I recently purchase my first bike Univega Weekend Escape 1.0 which arrived today. I am new to bicycle but i was able to guide myself using Youtube video and assembled it.
When i finished putting ...
- 31