Hi, how is everyone going?
I've run into a problem here...
I got a shimano altus c20 rear shifter that doesn't really want to engage properly and change gear. You have to flick the shifter many, many times before it starts to engage and change gear... once it does engage.. it works and goes up and then down but after it goes down to the smallest cog, it then does the same thing where you keep flicking the lever and it won't engage until about 20 or so flicks if you are lucky before it decides to respond and change gears to the bigger cogs.
The cable isn't slack or anything on the smallest cog and the screws are adjusted fine. What do you think the problem is and how can I fix it please?
Thanks in advance!
Shimano Altus c20 rear shifter issue - please help me thanks
-
- Posts: 94
- Joined: Sat Sep 17, 2011 9:16 pm
-
- Posts: 1494
- Joined: Thu Apr 29, 2010 8:10 pm
- Contact:
Re: Shimano Altus c20 rear shifter issue - please help me th
Postby high_tea » Sun Apr 14, 2013 3:29 pm
I'd be thinking about changing the cable.cyc715t wrote:Hi, how is everyone going?
I've run into a problem here...
I got a shimano altus c20 rear shifter that doesn't really want to engage properly and change gear. You have to flick the shifter many, many times before it starts to engage and change gear... once it does engage.. it works and goes up and then down but after it goes down to the smallest cog, it then does the same thing where you keep flicking the lever and it won't engage until about 20 or so flicks if you are lucky before it decides to respond and change gears to the bigger cogs.
The cable isn't slack or anything on the smallest cog and the screws are adjusted fine. What do you think the problem is and how can I fix it please?
Thanks in advance!
-
- Posts: 94
- Joined: Sat Sep 17, 2011 9:16 pm
Re: Shimano Altus c20 rear shifter issue - please help me th
Postby cyc715t » Mon Apr 15, 2013 7:25 am
what happens if it is not the cable please?
-
- Posts: 1494
- Joined: Thu Apr 29, 2010 8:10 pm
- Contact:
Re: Shimano Altus c20 rear shifter issue - please help me th
Postby high_tea » Mon Apr 15, 2013 12:10 pm
The next most likely culprit, do you mean? The cable housing.
- simonn
- Posts: 3763
- Joined: Thu Jan 31, 2008 11:46 am
- Location: Sydney
Re: Shimano Altus c20 rear shifter issue - please help me th
Postby simonn » Mon Apr 15, 2013 12:48 pm
The bureaucratic shift. You need to submit a proposal to change gear.cyc715t wrote:You have to flick the shifter many, many times before it starts to engage and change gear... once it does engage.. it works and goes up and then down but after it goes down to the smallest cog, it then does the same thing where you keep flicking the lever and it won't engage until about 20 or so flicks if you are lucky before it decides to respond and change gears to the bigger cogs.
Dirty/frayed/corroded inner and/or outer cables
Have you been riding in mud/rain? Change your cables.
-
- Posts: 94
- Joined: Sat Sep 17, 2011 9:16 pm
Re: Shimano Altus c20 rear shifter issue - please help me th
Postby cyc715t » Mon Apr 15, 2013 5:24 pm
I didn't think it was the cables etc as it does change gear. The problem is I have to flick the lever about 20 times before it decides to engage and change gear. Once it does, it changes up and down each time but once it goes back to the smaller cog, the same thing happens again..where I need to flick the lever 20 or so times...
- kb
- Posts: 2570
- Joined: Sun Nov 13, 2011 3:22 pm
Re: Shimano Altus c20 rear shifter issue - please help me th
Postby kb » Mon Apr 15, 2013 5:39 pm
It's possible your chain is too long and the pulley is getting caught on the rear sprockets when in your highest gear.
Still think it sounds like cables though.
Still think it sounds like cables though.
-
- Posts: 290
- Joined: Sun Mar 01, 2009 7:53 pm
- Location: Near Kew, Melb
Re: Shimano Altus c20 rear shifter issue - please help me th
Postby fooch » Tue Apr 16, 2013 10:08 am
It might also be the shifters. Are they the ones with two levers, i.e. Rapidfire? apart from what has been suggested above, all of which are good suggestions, you can also spray some WD40 or similar light spray lube into the shifter itself to dislodge the gunk buildup internally. This usually improves shifting.
Piled Higher & Deeper
- Dan
- Posts: 3289
- Joined: Fri Oct 16, 2009 1:32 pm
- Location: Vegas, baby
Re: Shimano Altus c20 rear shifter issue - please help me th
Postby Dan » Tue Apr 16, 2013 10:45 am
5 internet dollars says its the cable. Or, you could ask for advice, then ignore it. That also costs five internet dollars.
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
- The Market Place
- Member to Member Bike and Gear Sales
- Want to Buy, Group Buy, Swap
- My Bikes or Gear Elsewhere
- 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
Who is online
Users browsing this forum: The Great Boffo
- All times are UTC+10:00
- 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.