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

New: Take Part in the June Giveaway Coming Soon (June 18th)


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
Forgot to introduce myself!
Today 03:37 AM
Fat bikes for ever..
Today 02:52 AM
What are your best tips for long rides?
Today 02:50 AM
Reasons to buy aluminium not carbon bike...
Yesterday 12:19 AM
hello
Yesterday 12:16 AM
What did your first bicycle mean to you?
Yesterday 12:14 AM
Happy Fathers Day
06-16-2024 12:47 AM
Great CHEAP winter gloves (AKA This one ...
06-15-2024 10:35 AM
YABD - vintage Bernard Carré frame, etc
06-15-2024 01:11 AM
Adding brake to kids balance bike
06-12-2024 11:06 PM

[-]
Join BikeRide on Strava
Feel free to join if you are on Strava: www.strava.com/clubs/bikeridecom

[-]
Top 5 Posters This Month
no avatar 1. Jesper
39 posts
no avatar 2. enkei
26 posts
no avatar 3. Dusan
15 posts
no avatar 4. Amanda_W
12 posts
no avatar 5. GirishH
10 posts