PTP 31.8mm Downtube Shifters Adapter Clamp-On One-SIded Right Made USA

Description

PTP 31.8mm Downtube Shifters Adapter Clamp-On One-SIded Right Made USA
THE PTP DOWNTUBE SHIFTER ADAPTER!
31.8MM DIAMETER CLAMP
FULL STAINLESS STEEL CONSTRUCTION.
A mix of type 304 and type 316 stainless. Skilled hand fabricating and welding go into the construction of each adapter. Made in the USA.
This adapter features the
industry standard boss
(sometimes known as "Campagnolo standard") compatible with all index downtube shifters. These are the bosses which were universally adopted across the entire cycling industry when index shifting became dominant in the 1980s. It is the standard found on any current production bike that is fitted with downtube shifter bosses.
Will install
on bike frames with the old classic standard
31.8mm diameter tubing (1-1/4") diameter.
Compatible with almost
all index downtube shifters
ever made, as well as a considerable variety of vintage
friction shifters! (
See below for compatibility details).
ALSO compatible with
all shift-cable barrel adjusters
for Shimano STI, Campagnolo Ergo, and SRAM road bike shifters.
The bottom line is . . . . If you have a vintage frame with 31.8mm diameter downtube
but without the industry-standard bosses
, this adapter can enable you to successfully install index shifters and matching drive train.
Paddythepeddler is compiling a
list of downtube shifters that are compatible with this adapter
. And also a list of ones that are
not
compatible. This is a work-in-progress, and not comprehensive. If you have more relevant info, or spot an error, by all means send the Peddler an email.
PARTIAL LIST OF
COMPATIBLE
DOWNTUBE SHIFTERS:
All Shimano SIS index downtube shifters, 6, 7, 8 & 9 speed.
All Shimano bar-end shifters, 7, 8, 9 & 10 speed.
Shimano SL-L422 ratchet downtube shifters
All Suntour Accushift downtube shifters, 6, 7 & 8 speed.
All Suntour downtube friction shifters designed for Campy bosses.
Simplex friction downtube shifters designed for Campy bosses.
Modolo friction shfiters designed for Campy bosses.
Sachs Aris New Success downtube index shifters.
Most Campagnolo downtube shifters from the late 1970s forward,
including Synchro and Synchro 2.
Simplex retro-ratchet downtube shifters provided they have 5mm bolts
Sturmey-Archer SLS50 T5 thumb/downtube shifter
Sturmey-Archer SLS50 B5 thumb/downtube shifter
Sturmey-Archer SLS50 S5 downtube shifter
Sturmey-Archer SLS30 T3 thumb/downtube shifter
Sturmey-Archer SLS30 B3 thumb/downtube shifter
Sturmey-Archer SLS30 S3 downtube shifter
Sturmey-Archer SLS3X T3 thumb/downtube shifter
Sturmey-Archer SLS3X R3B thumb/downtube shifter
PARTIAL LIST OF
INCOMPATIBLE
DOWNTUBE SHIFTERS:
Huret downtube shifters not designed for Campy bosses.
Shimano downtube shifters with the "dog tooth base", e.g. Arabesque,
Golden Arrow.
All Shimano and Suntour "aero" type downtube shifters that install
on top
of the downtube.
Simplex downtube shifters not designed for Campy bosses.
Suntour Power and Suntour Mighty ratchet downtube shifters.
Many Campangolo downtube shifters from before the late 1970s.
IMPORTANT NOTE REGARDING CERTAIN DOWNTUBE SHAPES.
This adapter will only work with round tubes, and with completely symmetrical oval tubing. Completely symmetrical means symmetrical on both the X and Y axis. Will NOT work with triangular, hexagonol etc tubing.
Happy Bidding!
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_gsrx_vers_1281 (GS 8.3.5 (1281))