Have questions or want to discuss cycling? Join Now or Sign In to participate in the BikeRide community.

New: Take part in the October Giveaway for a Whiskey Tango Foxtrot urban gravel bike from Van Dessel Cycles


What does SIS INDEX compatible crankset mean?
#1
Hi guys

I am looking to buy the following Shimano crankset from Ebay,
http://www.ebay.co.uk/itm/Shimano-cycle-bike-Silver-triple-crank-crankset-chainwheel-chainset-24-34-42-/230784970540?pt=UK_sportsleisure_cycling_bikeparts_SR&hash=item35bbdb2f2c

It says it SIS index compatible. What does that help?

Thanks in advance
  Reply
#2
All that means is Shimano Index system. Meaning nothing more than the chainring spacing is compatible with index shifters. The crankset you chose would work with most 5,6,7,8, speed systems indexed or not. the important thing is using the proper Bottom bracket.
If you are replacing an existing crankset it may or may not use the same length spindle. Without knowing the model # of the crank you want on Ebay you will not know what BB to use, You also need to know what you have now for a BB length
There are two kinds of people in the world, "Those who help themselves to people, and those who help people!"
  Reply
#3
(01-25-2013, 10:00 PM)painkiller Wrote:  All that means is Shimano Index system. Meaning nothing more than the chainring spacing is compatible with index shifters. The crankset you chose would work with most 5,6,7,8, speed systems indexed or not. the important thing is using the proper Bottom bracket.
If you are replacing an existing crankset it may or may not use the same length spindle. Without knowing the model # of the crank you want on Ebay you will not know what BB to use, You also need to know what you have now for a BB length

Hey

Thanks for your reply. So are all cranksets SIS index compatible? How would i know if a crankset is SIS index compatible or not? And if a crankset is not SIS index compatible, is that a bad thing and if so how? Thanks for putting up with my lack of knowledge. I am trying to learn more about bikes. Cheers
  Reply
#4
It would be nice to know what type and how old your bike is. In general just like the one you found on ebay,would say in the specs SiS compatible.
a Double or triple crankset made in the last 25 years would be compatible with indexed shifters. Shimano has always used their own terms for the systems they make and claim work together as a "system" for fine results so to speak. Like the terms M-system, Sti. to name some others. Some manufacturers may simple say Shimano compatible. Shimano is the biggest player in the game. worldwide selling 5 times more components than Sram and campognolo combined. So impressive that without even realizing it people look more at component levels when deciding on bang for the buck on a bike and the actual brand of the bike takes a second place.
SO tell us what you are working on and we can better help guide you along! and welcome to bicycleTutor
There are two kinds of people in the world, "Those who help themselves to people, and those who help people!"
  Reply


Possibly Related Threads...

Forum Jump:

[-]
10 Latest Posts
Do Any Electric Bike Allows You to Switc...
Yesterday 10:36 PM
Western Flyer Restoration
Yesterday 09:09 PM
Looking for a hybrid for neighborhood an...
Yesterday 08:31 PM
Looking for information
Yesterday 06:47 PM
Bikes on the balcony for winter
Yesterday 06:25 PM
What do you like about gravel bikes?
Yesterday 06:59 AM
The deadliest U.S. counties for cyclists
10-27-2020 08:44 PM
Hello from Maine!
10-27-2020 08:41 PM
How to remove a Dork disc
10-27-2020 07:19 PM
2020 road cycling season
10-27-2020 07:18 PM

[-]
Top 5 Posters This Month
no avatar 1. Jesper
27 posts
no avatar 2. JoJoJo
9 posts
no avatar 3. Sagan97
8 posts
no avatar 4. Papa Dom
7 posts
no avatar 5. Painkiller
7 posts