Hi Guys, My bike is running 105 Brifters and derailers. Recently I've had to start multiple shift changes to get it to change up a gear. To explain it better. Sometimes when I want to shift up, I push the lever and nothing happens, no gear change occurs. If I press the lever again (Sometimes it will take 2-3 lever presses) it will change gear, when the gear change happens its a correct gear change, no skipping and correct cog selection. When the change doesn't occur the lever has no resistance, when the change occurs you can feel the resistance in the lever. It doesn't happen on any particular gear its just random, sometimes it changes sometimes it doesn't.
I was thinking of just replacing the shift cables, or do I have a bigger issue with my shifters ????
Thanks
Shifter Slipping
- Trev Campbell
- Posts: 162
- Joined: Wed Dec 10, 2008 10:12 pm
- Location: Strathalbyn, SA
Shifter Slipping
Postby Trev Campbell » Fri Jul 18, 2014 11:38 am
Great Jens Voigt Quotes:
"I get paid to hurt other people, how good is that?"
"Shut up legs"
"I get paid to hurt other people, how good is that?"
"Shut up legs"
- Dragster1
- Posts: 1540
- Joined: Mon Jul 08, 2013 9:46 pm
- Location: Eluding motorist
Re: Shifter Slipping
Postby Dragster1 » Fri Jul 18, 2014 1:06 pm
If your cables are old I would start there but its common that the brifters gum up and need to be pulled apart and cleaned. There are a lot of posts in the sticky section on how to clean them big job though if you haven't done them before.
- bychosis
- Posts: 7243
- Joined: Sat Jan 14, 2012 1:10 pm
- Location: Lake Macquarie
Re: Shifter Slipping
Postby bychosis » Fri Jul 18, 2014 1:40 pm
+1 for new cables, plus clean, lube and adjust the shifters where possible.
bychosis (bahy-koh-sis): A mental disorder of delusions indicating impaired contact with a reality of no bicycles.
- Trev Campbell
- Posts: 162
- Joined: Wed Dec 10, 2008 10:12 pm
- Location: Strathalbyn, SA
Re: Shifter Slipping
Postby Trev Campbell » Fri Jul 18, 2014 2:14 pm
Thanks Guys, I'll give it a go.
Cheers
Cheers
Great Jens Voigt Quotes:
"I get paid to hurt other people, how good is that?"
"Shut up legs"
"I get paid to hurt other people, how good is that?"
"Shut up legs"
- Tim
- Posts: 2944
- Joined: Wed Jul 07, 2010 5:02 pm
- Location: Gippsland Lakes
Re: Shifter Slipping
Postby Tim » Fri Jul 18, 2014 3:58 pm
I wouldn't fiddle with the brifter internals unless you are especially mechanically talented.
The best fix I've read of is to just squirt large volumes of WD40 into the workings.
Hopefully this will flush out any gunk and re-lube the moving parts.
From memory there was a particular model of 105 shifter that had known and common issues.
The best fix I've read of is to just squirt large volumes of WD40 into the workings.
Hopefully this will flush out any gunk and re-lube the moving parts.
From memory there was a particular model of 105 shifter that had known and common issues.
- Dragster1
- Posts: 1540
- Joined: Mon Jul 08, 2013 9:46 pm
- Location: Eluding motorist
Re: Shifter Slipping
Postby Dragster1 » Fri Jul 18, 2014 4:10 pm
ha ha yeah! the small parts can be pure mongrels to get back in. I once though I would try some liquid spray grease in there" Big Mistake", its stoped the rachet from working correctly. Silicon spray I have found to work for me and keeps every thing from gumming up and cleans any gunk out.Tim wrote:I wouldn't fiddle with the brifter internals unless you are especially mechanically talented.
The best fix I've read of is to just squirt large volumes of WD40 into the workings.
Hopefully this will flush out any gunk and re-lube the moving parts.
From memory there was a particular model of 105 shifter that had known and common issues.
- Duck!
- Expert
- Posts: 9848
- Joined: Tue May 21, 2013 8:21 pm
- Location: On The Tools
Re: Shifter Slipping
Postby Duck! » Fri Jul 18, 2014 8:06 pm
Very common for the older shifters (all types, road and MTB) to do that. The grease on the ratchety bits dries out & goes all cheesy, stopping the pawls from springing back into the next notch as quickly as they should. Do NOT try to pull them araprt, it will only end in tears! As others have mentioned, spray copious volumes of any sort of light lubricant in there & work the shifter back & forward until the guts start working again.
I had a thought, but it got run over as it crossed my mind.
- Wingnut
- Posts: 883
- Joined: Sat Sep 05, 2009 11:01 pm
- Location: Mornington Peninsula...
Re: Shifter Slipping
Postby Wingnut » Sat Jul 19, 2014 11:55 am
Maybe it just doesn't like being called a "Brifter"...
-
- Posts: 1219
- Joined: Sat Mar 08, 2008 10:12 pm
- Location: Seaforth
Re: Shifter Slipping
Postby rogerrabbit » Mon Jul 21, 2014 10:05 pm
Two theories. If you are contacting the rear paddle at all while you shift the brake lever, it doesn't engage. Are you now wearing full gloves since it is cold, you may be doing this. I had new DA shifters doing this and it took me a while to figure it out.
Secondly, if the shifters are sticky inside; I soaked a 20 year old 1991 tri-colour set in petrol for an hour, dried them out and lubed with spray on lithium grease. No more problems.
Secondly, if the shifters are sticky inside; I soaked a 20 year old 1991 tri-colour set in petrol for an hour, dried them out and lubed with spray on lithium grease. No more problems.
- Trev Campbell
- Posts: 162
- Joined: Wed Dec 10, 2008 10:12 pm
- Location: Strathalbyn, SA
Re: Shifter Slipping
Postby Trev Campbell » Tue Jul 29, 2014 11:49 am
Thanks Guys, New Cables and a big dose of silicon spray appear to have done the trick.
Great Jens Voigt Quotes:
"I get paid to hurt other people, how good is that?"
"Shut up legs"
"I get paid to hurt other people, how good is that?"
"Shut up legs"
Jump to
- General Australian Cycling Topics
- Info / announcements
- Buying a bike / parts
- General Cycling Discussion
- The Bike Shed
- Cycling Health
- Cycling Safety and Advocacy
- Women's Cycling
- Bike & Gear Reviews
- Cycling Trade
- Stolen Bikes
- Bicycle FAQs
- Serious Biking
- Audax / Randonneuring
- Retro biking
- Commuting
- MTB
- Recumbents
- Fixed Gear/ Single Speed
- Track
- Electric Bicycles
- Cyclocross and Gravel Grinding
- Dragsters / Lowriders / Cruisers
- Children's Bikes
- Cargo Bikes and Utility Cycling
- Road Racing
- Road Biking
- Training
- Time Trial
- Triathlon
- International and National Tours and Events
- Cycle Touring
- Touring Australia
- Touring Overseas
- Touring Bikes and Equipment
- Australia
- Western Australia
- New South Wales
- Queensland
- South Australia
- Victoria
- ACT
- Tasmania
- Northern Territory
- Country & Regional
- The Market Place
- Member to Member Bike and Gear Sales
- Want to Buy, Group Buy, Swap
- My Bikes or Gear Elsewhere
- Cycling Brands
- Cannondale
- Garmin
- Giant
- Shimano
- Trek
Who is online
Users browsing this forum: No registered users
- All times are UTC+11:00
- Top
- Delete cookies
About the Australian Cycling Forums
The Australian Cycling Forums is a welcoming community where you can ask questions and talk about the type of bikes and cycling topics you like.
Bicycles Network Australia
Forum Information
Connect with BNA
Brought to you by Bicycles Network Australia | © 1999 - 2024 | Powered by phpBB ®
This website uses affiliate links to retail platforms including ebay, amazon, proviz and ribble.
This website uses affiliate links to retail platforms including ebay, amazon, proviz and ribble.