Shimano FC-M900, XTR M900  (Report Pending)
Main Photo
Category:  Cranksets
Name:  Shimano FC-M900, XTR M900
Brand:  Shimano
Primary Group:  XTR M900
Model:  FC-M900
Years:  Early 1990's - Mid 1990's
Country:  Japan
Added By: JFischer on 06/02/11
Updated By: Tombo on 07/13/19
Additional Photos - click for full size
Shimano FC-M900, XTR M900Shimano FC-M900, XTR M900Shimano FC-M900, XTR M900Shimano FC-M900, XTR M900Shimano FC-M900, XTR M900
Chainring CountTripleBCD 110mm / 74mm
BB StyleSquare Taper (JIS)Pedal Threads9/16" x 20 (English)
BB Length 107mm (47.5mm chainline), 113mm (50mm chainline)Flutes None
Lengths 170; 175Arm/Spider MaterialAluminum Alloy
Front MarkingsShimano XTRBack MarkingsFC-M900 VIA Japan [length] [datecode - sticker]
Extractor Threading 22x1mm (Standard)  
General Information
Reported By:shivn
Report Date:2/28/2020
Report Reason:Incorrect Content, Those cranks has ISO BB, not JIS. I bought them and JIS shimano BB doesn't fit, but campy ISO fits perfectly. Also found info that UN-BB91 dedicated BB is ISO as well.
Outstanding Report Submitted  
Additional Resources
Resources:Reference & ChartsCatalogsGear Calculator
Component Groups
Primary Group NameBrandQuick InfoBrowse Group Components
XTR M900Shimano1992 - 1995, Mountain BikeView 14 Components
Details:  Designed to be a complete race oriented mountain bike group, the new 8sp SIS compatible XTR series was introduced in 1992.  A slight upgrade with M910 series parts was released in 1995 before the group was completely upgrade in 1996 with the introduction of the M950 series.
Brand Information(click to expand)

Shimano Model Number Prefix List:

BB Bottom Bracket BL Brake Lever BR BRake
CB Coaster Brake CJ Cassette Joint CN ChaiN
CP Chain Protecto CR Chain Ring CS Cassette Sprockets
DF chain DeFlector DH Dynamo Hub FC Front Crank
FD Front Derailleur FE Fork Ends FH FreeHub
FS Front Suspension HB HuB HD HanDle bar
HP Head Parts (Head Set) HS Handle Stem IF Inter-3 Freehub
LP LamP MF Multi Freewheel PD PeDal
RD Rear Derailleur RH Rollerbrake Hub RM RiM
RR ReflectoRs RS Rear Suspension SB Shift Brake lever (Nexus, ?)
SC Speed Calculator (cycle computer) SF Single Freewheel Freilaufritzel SG Speed chanGe hub
SH SHoes SL Shift Lever Schalthebel SM SMall parts
SP Seat Post SQ Seat Quick release SS Single Sprocket
TL TooL WH WHeel ST Shift Brake Lever (STI, Rapid Fire, etc)
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