VeloBase.com - Component: Simplex SX100 T

Simplex SX100 T

Category:	Rear Derailleurs
Name:	Simplex SX100 T
Brand:	Simplex
Primary Group:	SX
Model:	SX100 T
Years:	1975 - 1980
Country:	France
Weight:	282 grams
Added By:	JFischer on 11/15/07
Updated By:	tmundry67 on 01/19/22
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Outer Plate Markings	Simplex	Inner Plate Markings	Simplex Brevete S.G.D.G. / Made in France
Material	Plastic; Steel	Design Category	Inline parallelogram
Attachment Bolt Size	hanger / claw for rear axle	Cable Attachment Bolt Size	6 mm Allen Key
Shifting Systems	Friction	Cable Adjuster	No
Cage Length	Short	Max Cog Size	30
Max Chain Wrap	30

General Information
The SX 100 T rear derailleur is listed as one of the base models in the 1975 catalogue. Apparently it was only produced from 1975 and maybe 1 or 2 years in addition, after that replaced by the SX 110 having the golden front logo. Thie example appears to be from 1977 which can be seen by the cable attachment bolt with the Typical "donut" design (maybe CPSC related) which was introduced around that year. Compared to the ubiquitous S001 T which you still find to date very frequently this is somewhat rare but still not something special. Technically and related to quality/finish there are hardly any differences that can be found. Delrin, Zinc coated steel not very light, i.e. quite basic. The embossed front badge is similar to the S001 only the parallelogram plastic houses are of the new SX design and with embossed Simplex sun logo. AS with many other Simplex rear deraillerurs of that time it was also available in long cage (GT) version. As well 2 options for atatchment were available, one with the special bolt and frame screw (Simplex Design - mainly created for Simplex dropouts) and standard with hanger/claw for dropouts without derailleur thread (eye).
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Additional Resources
Resources:	Reference & Charts Catalogs External Resources

Component Variations	View Detailed List Manage Variations
Variations of Component exist (Component is 1 of 2)	Brand	Group
Simplex SX100 GT	Simplex

Component Groups
Primary Group Name	Brand	Quick Info	Browse Group Components
SX	Simplex		View 5 Components

Brand Information(click to expand)

Known for their black plastic (Delrin) derailleurs during the "bike boom" of the 1970's, they were at the forefront of innovation over the years, producing such highly regarded items as the Super LJ derailleurs, Retrofriction shifters, and very popular line of seat posts.

SX 100 T General description
Author:	tmundry67
The SX 100 T rear derailleur is listed as one of the base models in the 1975 catalogue. Apparently it was only produced from 1975 and maybe 1 or 2 years in addition, after that replaced by the SX 110 having the golden front logo. Compared to the ubiquitous S001 T which you still find to date very frequently this is somewhat rare but still not something special. Technically and related to quality/finish there are hardly any differences that can be found. Delrin, Zinc coated steel not very light, i.e. quite basic. The embossed front badge is similar to the S001 only the parallelogram plastic houses are of the new SX design and with embossed Simplex sun logo.

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