Ryno. Posted December 4, 2014 Share Ok so this is the Shimano codes explained.I just want to start of by saying that I got this from an international Cycling forum.(BikeRadar.com) And I don't want to take credit for someone's work , I just found it interesting. It is quite helpful when buying second hand and there is no name like XT or SLX on the part. Shimano part numbers are of the formAB-C wxyWhere AB and C are letters, and w, x and y are numbersAB denotes which bit of the bike it is, some examples:RD=Rear DerailleurFD=Front DerailleurHB=Hub (front)FH=FreeHub (rear hub)HP=HeadsetCN=ChainCS=CassetteBR=Brake (caliper)BL=Brake LeverSL=Shift LeverST=STI levers (road or mountain)CB=CableWH=WheelFC=Front CranksetBB=Bottom BracketC denotes which discipline. M for Mountain, R for Road, A or T for Audax or Touring.So BR-Mwxy is a mountain bike brake caliper.w is used to denote the product group:M3xy and M4xy are below DeoreM5xy is DeoreM6xy is LX and HoneM7xy is XTM8xy is SaintM9xy is XTRThe x is the 'major' change. M95y was the matt XTR, M96y was the shiny, M970 is the latest.The y are minor variations. RD-M951 was the rapid-rise version of RD-M950. But otherwise they are exactly the same. They do similar things with front mechs and clamp sizes, too.You also sometimes get letters after the codes. RD-M951 SGS is the SGS version.Below is the date codes they are normally a little silver sticker somewhere on the part. YEARA 1976B 1977C 1978D 1979E 1980F 1981G 1982H 1983I 1984J 1985K 1986L 1987M 1988N 1989O 1990P 1991Q 1992R 1993S 1994T 1995U 1996V 1997W 1998X 1999Y 2000Z 2001A 2002B 2003C 2004D 2005E 2006F 2007G 2008H 2009I 2010J 2011K 2012L 2013M 2014 MONTHA JAN B FEBC MAR D APRE MAY F JUNG JULH AUGI SEPJ OCTK NOVL DECIf I made any mistakes or if there is already a topic(I couldn't found one) like this on the hub please tell my, and I will edit. Edited December 4, 2014 by R.smith gogo@, SwissVan, PieterJvR and 9 others 12 Link to comment Share on other sites More sharing options...
Guest DieBees Posted December 4, 2014 Share Nice! Tha ks for this. I am gonna save this! Link to comment Share on other sites More sharing options...
HeyYou Posted December 4, 2014 Share A good resource if you're into retro. http://datenbanken.freepage.de/cgi-bin/feets/freepage_ext/41030x030A/rewrite/traut/SHIMANO.html#95 Link to comment Share on other sites More sharing options...
Ryno. Posted December 4, 2014 Share Nice! Tha ks for this. I am gonna save this!I printed it out, and it is quite easy to use , especially the date codes because a XT part from 2000 isn't the same as a 2013. Link to comment Share on other sites More sharing options...
Skylark Posted December 4, 2014 Share Interesting, I love knowing data like this, often the factory it was made in is included in the code somewhere but doesn't look like that is the case here. Link to comment Share on other sites More sharing options...
GoLefty!! Posted December 4, 2014 Share this is pretty old hat but thanks for refreshing the topic. Always good for newbies to have handy Link to comment Share on other sites More sharing options...
Daniel J Méssem Posted December 4, 2014 Share so what is 'SM-AX75'? Link to comment Share on other sites More sharing options...
Ryno. Posted December 4, 2014 Share this is pretty old hat but thanks for refreshing the topic. Always good for newbies to have handySorry I didn't realise that it was already on The Hub Link to comment Share on other sites More sharing options...
hvh Posted December 4, 2014 Share Thanks. Will help Link to comment Share on other sites More sharing options...
Ryno. Posted December 4, 2014 Share Is there any mistakes that I can mayby fix? Link to comment Share on other sites More sharing options...
Long Wheel Base Posted December 5, 2014 Share so what is 'SM-AX75'?According to google its a rear XTR hub. So looks like there might be a few variants in the codes above. I guess its never clear cut but just a very good guideline in most cases. Link to comment Share on other sites More sharing options...
paul_ct Posted December 5, 2014 Share Cool! Thanks for this. [emoji106] Link to comment Share on other sites More sharing options...
RichieT Posted December 5, 2014 Share Thanks for this, very useful Link to comment Share on other sites More sharing options...
Daniel J Méssem Posted December 5, 2014 Share According to google its a rear XTR hub. So looks like there might be a few variants in the codes above. I guess its never clear cut but just a very good guideline in most cases.nah its a thru axle, just wondered if the code fitted in with the key above the date sticker fitted, which is useful thanks for posting this guide, always wondered what those little silver stickers were! Long Wheel Base 1 Link to comment Share on other sites More sharing options...
Skinnyone Posted December 5, 2014 Share SM denotes SMall parts...AX is AXle and 75 is the groupset code so the older XT/XTR Also the groupset numbers can denote the years i.e. XTR 960 series was released in 2006 and ran till late 2009 when XTR 970 series came out, then XTR 980 was released 2011 there abouts...there is generally a 3-4 year cycle between revamps. Ryno. and Daniel J Méssem 2 Link to comment Share on other sites More sharing options...
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