All Questions
Tagged with derailleur sprocket
13 questions
5
votes
3
answers
729
views
Improving the Efficiency of a Derailleur: Enlarging the Cassette Sprockets to reduce Friction
For reasons that I have not yet understood, the smallest sprockets with only 11 teeth have prevailed in derailleur cassettes of road bikes, which leads to a very strong deflection of the individual ...
- 153
3
votes
1
answer
152
views
If my max cog is 50t and I got a 52t cog
Hello I just bought a ltwoo groupset on ebay because I want to go cheap for my first ride since I'm not sure if I will be riding a lot. I went on the ltwoo website later on and found on that their max ...
- 51
0
votes
1
answer
212
views
Is my bike safe to use if cogs and crank is not that aligned?
Hey guys is it fine if my freewheel bike which is single speed is not that straight with its chain line, because my cogs and crank arent that straight but it is also not that far, im thinking if it is ...
1
vote
2
answers
144
views
Can no longer shift to lowest gear
I recently worked on my derailleur a bit to fix some issues in high gears, however, now I can no longer shift down to my lowest in the cassette when in either crankset.
I have tried the L screw at ...
3
votes
1
answer
2k
views
Chain skipping on upper pulley of rear derailleur
Background: I have a full suspension mountain bike with SRAM GX Eagle components. I snapped my chain recently, and replaced it with a new one of the same model. Made sure to size it the same as the ...
- 31
2
votes
2
answers
347
views
Using a cassette and derailleur with different sprocket/cog specifications
I am trying to make a cheaper (500ish) bike work with a Tacx Flux (2018 version). According to their website, the Tacx Flux only supports 8-11 speed cassettes, but my bike has a 7 speed freewheel (14-...
- 23
2
votes
1
answer
3k
views
What is the top sprocket?
I am reading the Shimano specs and I cannot figure out what is the "top sprocket". An example: https://bike.shimano.com/en-EU/product/component/sora-r3000/RD-R3000-SS.html
"Low sprocket" (I couldn' ...
- 2,064
-1
votes
1
answer
559
views
It takes several clicks of the shifter to go from smallest cog to next biggest cog, and I get hit the four biggest cogs
When I try to shift from the smallest cog to the next biggest one, I have to shift three times before it moves. Click one and I see the cable tightening. Click two and nothing, and click three and ...
- 129
5
votes
1
answer
7k
views
Which jockey wheel on top?
I've just bought a new pulley set for my rear derailleur but do not know which one goes on the top (nearest derailleur) and which one goes on the bottom. The
wheels have arrows on them;vI suppose they ...
2
votes
2
answers
149
views
Bike broke, strange parts came out, and doesn't know where to find exact replacement
My friend's bike broke and this thing came out... From various sources I found that it's probably a cog from deraileur. He went to bike shops but none could find a replacement that's for this exact ...
0
votes
1
answer
106
views
The spring in my front dérailleur is jammed
My front derailleur is jammed by dirt (grease + fine dust), because of this the gear doesn't shift perfectly and chain is thrown off the cog. The spring is a bit unreachable because the derailleur arm ...
user14633
7
votes
1
answer
304
views
Why do some people leave the chain sitting on the smaller sprocket when the bike is not used for a while?
I guess it is something related to the springs in the derailleur. But is it that important?
- 357
3
votes
1
answer
4k
views
Can't change into the largest sprocket on rear derailleur
I bought my first road bike recently, and I've noticed I can't change into the largest cog/sprocket on the rear derailleur because when I pull the shifter the chain is pushed into the side of the ...
- 277