Oh man you literally saved me with this video. Was halfway through a coast to coast and in the middle of nowhere. For a moment it was looking like 100 miles as a single speed. Thank you so much!!!
Hey, thanks for this. I just unpacked my bike after a trip and it would only find the bottom 2 gears (smallest cogs). I watched this video and the part where you point out the cams and demonstrate by hand how it clicks back in was extremely useful. I checked on my bike, found the cams were out of place and so pushed the derailleur into a more extended position, it changed up to the biggest cog, made a click sound and now it seems to be fixed. I will try out on the road when it's daylight, but I'm pretty sure it's fixed. Genius!!!!
Very helpful. Lifting the chain up and moving it up a couple of chain rings and pushing the derailleur in at the same time fixed my problem. The derailleur started engaging again. The fact that it went into crash mode, however, without reason on a straight road is a bit disconcerting
Yes just pressing the button(s) a bunch worked for me. I was stuck in the smallest rear ring and I had to downshift even more. Unfortunately I found this after I pedaled home 😂 at least it was still shifting up front so it was smaller ring up front but smallest ring in back Thank you!
Wow, I think this happened to me yesterday, though I didn’t have a crash. Fortunately it was early in my ride and I got home ok. Took it to a bike shop, they didn’t know what it was, but having hooked it up to a laptop, it seemed to work again. Difficult to fix on your own out on a ride as you need to hold the bike up, spin the pedals and use the shifter, so need three hands. I suppose taking the chain off is going to be the only way to fix it on the road? With the chain off, can you just click it back into place without using the shifter?
Hi. Do you know any issue for taking an Ultegra 12v Di2 on a trainer? I have a Flux and I tried twice to put the bike on the trainer grabbing the derailleur with hand. The isuue is that it doesn't go up more than on the 21t cog. When I mount back the rear wheel the derailleur is in protection mode so I have to do the unprotection procedure.
How to fix when to parts are not linked at all: - RD is not in the overlap/crash mode - Outer part is completely off from the servo motor part, servo part no pushing slave part (but turning ok step by step from ST) This happened on the rails or bumps after them. I believe slave part snapped somehow completely and can not be put inside on servo part.
Hey derailleur devotees, buckle up for a pun-packed summary of a video that'll have you geared up and ready to ride! Our host dives into the wheel world of Di2 12-speed rear derailleurs and their crash mode conundrums. The video shifts into action with a look at the Ultegra R8150, but don't worry if you're on Team 105 or Dura-Ace, the process is chain-ging similar. It's all about finding that elusive function button hiding on the rear derailleur, so no need to stem your excitement. The crux of the matter? A misaligned cam that causes your derailleur to jump out and leave you shifting in the wind. But fear not, as our host demonstrates how to pedal through the problem by shifting up and down until everything clicks into place. It's a manual maneuver that'll get you back on track in no time! If your derailleur is still acting like a freewheeling rebel, our host offers a handy tip: remove the chain and manually align the cam. It's a surefire way to regain control and have your ride running as smooth as a well-oiled chain. So if you find yourself stuck in a gear jam, don't fret! Just give this video a thumbs up, subscribe for more cycle-centric content, and ride safe!
Oh man you literally saved me with this video. Was halfway through a coast to coast and in the middle of nowhere. For a moment it was looking like 100 miles as a single speed. Thank you so much!!!
Hey, thanks for this. I just unpacked my bike after a trip and it would only find the bottom 2 gears (smallest cogs). I watched this video and the part where you point out the cams and demonstrate by hand how it clicks back in was extremely useful. I checked on my bike, found the cams were out of place and so pushed the derailleur into a more extended position, it changed up to the biggest cog, made a click sound and now it seems to be fixed. I will try out on the road when it's daylight, but I'm pretty sure it's fixed. Genius!!!!
Super! Exactly the same issue for me after a trip. Found this and worked like a charm! Cheers!
Very helpful. Lifting the chain up and moving it up a couple of chain rings and pushing the derailleur in at the same time fixed my problem. The derailleur started engaging again. The fact that it went into crash mode, however, without reason on a straight road is a bit disconcerting
Saved me a trip to the bike shop, thanks!
Life saver of a video!
The gist was to just ride and shift up and down the cassette!
THx this just helped me fixing mine after it went into crash mode in the travel suit.
Thank You Thank You thank You, you saved me My Ultegra started acting funny and this is what happened your videos are great
Thank you very much. This was exactly was happened to my grx after the battery ran out during my today’s ride.
Thanks a lot for the tips, my new bike drive train went into crash mode. Fixed now
Yes just pressing the button(s) a bunch worked for me. I was stuck in the smallest rear ring and I had to downshift even more. Unfortunately I found this after I pedaled home 😂 at least it was still shifting up front so it was smaller ring up front but smallest ring in back
Thank you!
Thank you somuchhhh!! U help me in the middle of the ride alone in nowhereee
Saved my life right there buddy thanks
This happened to me last week to fix the problem I just pushed the derailleur inwards with my hand and it worked fine
Wow, I think this happened to me yesterday, though I didn’t have a crash. Fortunately it was early in my ride and I got home ok. Took it to a bike shop, they didn’t know what it was, but having hooked it up to a laptop, it seemed to work again.
Difficult to fix on your own out on a ride as you need to hold the bike up, spin the pedals and use the shifter, so need three hands. I suppose taking the chain off is going to be the only way to fix it on the road? With the chain off, can you just click it back into place without using the shifter?
This guy’s awesome.
Thanks for the super helpful video
Great info..
My front 12 sp Di2 mech seems to have done this after throwing a chain badly. any idea if you can fix it at home mate?
Hi. Do you know any issue for taking an Ultegra 12v Di2 on a trainer? I have a Flux and I tried twice to put the bike on the trainer grabbing the derailleur with hand. The isuue is that it doesn't go up more than on the 21t cog. When I mount back the rear wheel the derailleur is in protection mode so I have to do the unprotection procedure.
How to fix when to parts are not linked at all:
- RD is not in the overlap/crash mode
- Outer part is completely off from the servo motor part, servo part no pushing slave part (but turning ok step by step from ST)
This happened on the rails or bumps after them. I believe slave part snapped somehow completely and can not be put inside on servo part.
Thank you!!
Hey derailleur devotees, buckle up for a pun-packed summary of a video that'll have you geared up and ready to ride! Our host dives into the wheel world of Di2 12-speed rear derailleurs and their crash mode conundrums.
The video shifts into action with a look at the Ultegra R8150, but don't worry if you're on Team 105 or Dura-Ace, the process is chain-ging similar. It's all about finding that elusive function button hiding on the rear derailleur, so no need to stem your excitement.
The crux of the matter? A misaligned cam that causes your derailleur to jump out and leave you shifting in the wind. But fear not, as our host demonstrates how to pedal through the problem by shifting up and down until everything clicks into place. It's a manual maneuver that'll get you back on track in no time!
If your derailleur is still acting like a freewheeling rebel, our host offers a handy tip: remove the chain and manually align the cam. It's a surefire way to regain control and have your ride running as smooth as a well-oiled chain.
So if you find yourself stuck in a gear jam, don't fret! Just give this video a thumbs up, subscribe for more cycle-centric content, and ride safe!
Dafuq. 😂
This is the dumbest thing this (probable) bot could’ve posted
The most stupid feature. I have dura ace and hate this feature. Triggered twice on rough roads. Please Shimano..get rid of this feature.
you just saved my life thank you :)