Tiagra 4500 shifters with 4600/5700/6700 calipers

Tiagra 4500 shifters with 4600/5700/6700 calipers

Postby payam » Wed Nov 21, 2012 10:40 pm

Hi All,
I keep getting different answers from different people at the local bike shops on this one.

I have Tiagra 4500 shifters and wanted to upgrade the tektro brake calipers which came stock on the bike. It seems that shimano has changed the leverage ratio for the new 4600/5700/6700 calipers and shifters, and they are no longer compatible with the older shifters. The compatibility chart says they are not compatible, but I can't understand why not - it's a cable pulling a caliper closed!

Has anyone had experience with this? Will 5700/6700 calipers work with a 4500 shifter?
payam
 
Posts: 2
Joined: Wed Nov 21, 2012 10:27 pm

by BNA » Fri Nov 23, 2012 8:01 pm

BNA
 

Re: Tiagra 4500 shifters with 4600/5700/6700 calipers

Postby usernameforme » Fri Nov 23, 2012 8:01 pm

The Cable pull ratio is different, meaning the caliper will close at a different rate than what it is designed to. It'll stop you, but I won't be suprised if the braking is a little weaker. Why are you changing your brakes? I would suggest a change in brake pad before a change in brake
usernameforme
 
Posts: 911
Joined: Thu Jul 14, 2011 7:01 pm
Location: Adelaide

Re: Tiagra 4500 shifters with 4600/5700/6700 calipers

Postby Nobody » Fri Nov 23, 2012 8:53 pm

I have some 4500 Tiagra brakes and the standard pads aren't very good. Like above, pad change will make the most difference. Get some reasonable cartridge pads.

If you really want to see a big change in braking performance, convert the front to disc brake.
Nobody
 
Posts: 6650
Joined: Thu Sep 18, 2008 12:10 pm
Location: Sydney

Re: Tiagra 4500 shifters with 4600/5700/6700 calipers

Postby payam » Sat Nov 24, 2012 9:47 am

Thanks - I have decided to go with the pads first. Will see how this goes before upgrading anything!
payam
 
Posts: 2
Joined: Wed Nov 21, 2012 10:27 pm


Return to Shimano

Who is online

Users browsing this forum: No registered users



Popular Bike Shops
Torpedo 7 Torpedo7 AU
Ground Effect Ground Effect NZ
Chain Reaction Cycles CRC UK
Wiggle Wiggle UK
Ebay Ebay AU

“Bicycles BNA Twitter
“Bicycles BNA Facebook
“Google+ BNA Google+
“Bicycles BNA Newsletter

> FREE BNA Stickers
> BNA Cycling Kit