All Questions
15 questions
5
votes
1
answer
13k
views
My bike's gears won't shift properly or at all
Firstly, sorry if this has been asked before but I don't know much about bikes. I bought my bike from big w (fairly cheap beginners bike, but I am happy with it). It has two shifters, one on the left (...
- 51
0
votes
2
answers
764
views
Shifting derailleur without pedaling?
I know shifting gears without pedaling would potentially damage your bike, but would shifting front derailleur while stationary damage anything?
- 141
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 ...
1
vote
3
answers
192
views
My bike shifting won’t surpass 6
I own a Scott Aspect 740. On the shifter it says it is on gear 7, 8 or 9 however in reality on the rear derailleur the chain is only on 6 and won’t go past this.
I’m looking for a fix as it is very ...
- 11
2
votes
1
answer
101
views
Do simpler casettes have less issues with missing shifts?
On my new Trek Marlin with a 8 gear cassette, sometimes I try to downshift into the middle of the range of gears and it doesn't take (upshifting works fine). I can hear the gear clicking for a few ...
- 608
1
vote
2
answers
1k
views
Can't shift to highest front gear
I've been trying to propely adjust front gears in my bike, but failed to do so. I can't make the front gear to shift to highest gear. I can make it work when testing the bike while it's lifted, but ...
- 119
1
vote
2
answers
12k
views
Front derailleur cable suddenly very slack (no shifting), not sure what's caused it
I last rode the bike on Sunday. Throughout the ride I noticed the front shifter (grip friction shift, Shimano) was feeling "looser" than normal (hard to describe, it didn't feel "right" and seemed to ...
user38333
1
vote
3
answers
1k
views
Rear derailleur moves to much for each click - tried everything
Two years ago I build a bike (flat bar) with SRAM 1x11. Around a month ago the rear-derailleur broke (guide pulley broke).
I bought a new rear derailleur: Shimano 105 RD-5800-GS.
After installation ...
- 13
5
votes
5
answers
4k
views
Gears shift perfectly when suspended on rack, but not on the ground?
So I had recently solved some issues I was having thanks to the community. I re-tuned my bike on a suspended mount and everytning looks great. On the ground, all of the gears work smoothly except for ...
- 81
3
votes
3
answers
58k
views
All gears shift smoothly, but won’t shift into 1st gear/large cog. Help?
So I was tuning my newly acquired bike today and working with all 8 gears on the rear derailleur. I managed to properly set the high limit screw as well as cable tension so all gears shift smoothly ...
- 81
2
votes
3
answers
4k
views
Rear shifting - Unable to shift to toughest gear
I was adjusting my rear shifting following the advice in this video:
It was when I took off the wire tension and screwed the high limit all the way out that the chain ...
- 123
1
vote
2
answers
4k
views
Upgrading rear derailer and cassette
I recently got what most people would consider a cheap and toy road bike as a gift. It came with very primitive RD and cassette (shimano SIS? I think). I enjoy upgrading my stuff, my question is, ...
- 65
5
votes
2
answers
3k
views
(Automatic Bike Project) amount of torque required to change gears?
I am planning to build an electronically controlled automatic bike transmission for my senior design project. I'm personally more of an electrical guy, so dealing with the mechanics is somewhat new to ...
- 153
2
votes
3
answers
15k
views
Gear up-shift not smooth
When I am pedaling hard and shift to a larger sprocket, the shift is not smooth or sometimes doesn't happen at all. Sometimes even double up-shifts don't work. There is no problem shifting when I test ...
- 149
1
vote
2
answers
252
views
Unable to change from 14th to 7th
I've got a bike that I have had for about 8 weeks and it has already been back to be serviced twice. It's just returned from the second service and I've noticed that it is not shifting from 14th to ...
- 119