What is this thing?
#1
Junior Member
Thread Starter
What is this thing?
What is this little knob poking from the head tube?
Likes For Germany_chris:
#3
Senior Member
Join Date: Dec 2005
Posts: 17,146
Mentioned: 481 Post(s)
Tagged: 0 Thread(s)
Quoted: 3804 Post(s)
Liked 6,643 Times
in
2,602 Posts
Pump peg.
Likes For nlerner:
#4
Senior Member
Join Date: Nov 2005
Location: NW Ohio
Posts: 3,411
Bikes: 1984 Miyata 310, 1986 Schwinn Sierra, 2011 Jamis Quest, 1980 Peugeot TH8 Tandem, 1992 Performance Parabola, 1987 Ross Mt. Hood, 1988 Schwinn LeTour, 1988 Trek 400T, 1981 Fuji S12-S LTD, 197? FW Evans
Mentioned: 24 Post(s)
Tagged: 0 Thread(s)
Quoted: 525 Post(s)
Liked 977 Times
in
509 Posts
Here's one with a pump on it. I think pump pegs became more widespread when bikes started getting a second set of water bottle mounts on the seat tube.
1992 Performance Parabola
1992 Performance Parabola
Likes For Pompiere:
Likes For Ironskillet:
#7
Edumacator
Join Date: Jan 2018
Location: Goose Creek, SC
Posts: 6,777
Bikes: '87 Crestdale, '87 Basso Gap, '92 Rossin Performance EL-OS, 1990 VanTuyl, 1980s Losa, 1985 Trek 670, 1982 AD SLE, 1987 PX10, etc...
Mentioned: 59 Post(s)
Tagged: 0 Thread(s)
Quoted: 2434 Post(s)
Liked 3,108 Times
in
1,957 Posts
Gorgeous Rossin!
__________________
1987 Crest Cannondale, 1987 Basso Gap, 1992 Rossin Performance EL, 1990ish Van Tuyl, 1985 Trek 670, 1982 AD SLE, 2003 Pinarello Surprise, 1990ish MBK Atlantique, 1987 Peugeot Competition, 1987 Nishiki Tri-A, 1981 Faggin, 1996 Cannondale M500, 1984 Mercian, 1982 AD SuperLeicht, 1985 Massi (model unknown), 1988 Daccordi Griffe , 1989 Fauxsin MTB, 1981 Ciocc Mockba, 1992 Bianchi Giro, 1977 Colnago Super
1987 Crest Cannondale, 1987 Basso Gap, 1992 Rossin Performance EL, 1990ish Van Tuyl, 1985 Trek 670, 1982 AD SLE, 2003 Pinarello Surprise, 1990ish MBK Atlantique, 1987 Peugeot Competition, 1987 Nishiki Tri-A, 1981 Faggin, 1996 Cannondale M500, 1984 Mercian, 1982 AD SuperLeicht, 1985 Massi (model unknown), 1988 Daccordi Griffe , 1989 Fauxsin MTB, 1981 Ciocc Mockba, 1992 Bianchi Giro, 1977 Colnago Super
Likes For jdawginsc:
Likes For jonny7:
Likes For P!N20:
#11
Junior Member
Thread Starter
#12
Senior Member
Join Date: May 2008
Location: Fredericksburg, Va
Posts: 9,579
Bikes: '65 Frejus TDF, '73 Bottecchia Giro d'Italia, '83 Colnago Superissimo, '84 Trek 610, '84 Trek 760, '88 Pinarello Veneto, '88 De Rosa Pro, '89 Pinarello Montello, '94 Burley Duet, 97 Specialized RockHopper, 2010 Langster, Tern Link D8
Mentioned: 73 Post(s)
Tagged: 0 Thread(s)
Quoted: 1607 Post(s)
Liked 2,214 Times
in
1,103 Posts
__________________
Bikes don't stand alone. They are two tired.
Bikes don't stand alone. They are two tired.
Likes For SJX426:
#13
Extraordinary Magnitude
Join Date: Aug 2009
Location: Waukesha WI
Posts: 13,643
Bikes: 1978 Trek TX700; 1978/79 Trek 736; 1984 Specialized Stumpjumper Sport; 1984 Schwinn Voyageur SP; 1985 Trek 620; 1985 Trek 720; 1986 Trek 400 Elance; 1987 Schwinn High Sierra; 1990 Miyata 1000LT
Mentioned: 84 Post(s)
Tagged: 0 Thread(s)
Quoted: 2607 Post(s)
Liked 1,695 Times
in
934 Posts
The great American hero!
__________________
*Recipient of the 2006 Time Magazine "Person Of The Year" Award*
Commence to jigglin’ huh?!?!
"But hey, always love to hear from opinionated amateurs." -says some guy to Mr. Marshall.
Commence to jigglin’ huh?!?!
"But hey, always love to hear from opinionated amateurs." -says some guy to Mr. Marshall.
Likes For The Golden Boy:
#14
Senior Member
Join Date: Aug 2010
Location: Central Florida, USA
Posts: 1,987
Bikes: Litespeed (9); Slingshot (9); Specialized (3); Kestrel (2); Cervelo (1); FELT (1); Trek (2)
Mentioned: 39 Post(s)
Tagged: 0 Thread(s)
Quoted: 433 Post(s)
Liked 3,443 Times
in
994 Posts
Vestigial frame tube or supernumerary top tube.
Most bicycle scientists feel the answer is inconclusive.
Either way, go ahead and use it to support a frame pump.
That's how most of us use it.
Whatever you do, don't finger it obsessively while riding.
Most bicycle scientists feel the answer is inconclusive.
Either way, go ahead and use it to support a frame pump.
That's how most of us use it.
Whatever you do, don't finger it obsessively while riding.
__________________
WTB: Slingshot bicycle promotional documents (catalog, pamphlets, etc).
WTB: American Cycling May - Aug, Oct, Dec 1966.
WTB: Bicycle Guide issues 1984 (any); Jun 1987; Jul, Nov/Dec 1992; Apr 1994; 1996 -1998 (any)
WTB: Bike World issue Jun 1974.
WTB: Slingshot bicycle promotional documents (catalog, pamphlets, etc).
WTB: American Cycling May - Aug, Oct, Dec 1966.
WTB: Bicycle Guide issues 1984 (any); Jun 1987; Jul, Nov/Dec 1992; Apr 1994; 1996 -1998 (any)
WTB: Bike World issue Jun 1974.
Likes For SpeedofLite:
Likes For 76SLT:
#16
Recovering Bikeaholic
#17
Senior Member
Join Date: Apr 2010
Location: Elevation 666m Edmonton Canada
Posts: 2,475
Bikes: 2013 Custom SA5w / Rohloff Tourster
Mentioned: 7 Post(s)
Tagged: 0 Thread(s)
Quoted: 1233 Post(s)
Liked 318 Times
in
245 Posts
If the pump can't be braced against something, then they are near useless. IMO.
#18
Senior Member
Join Date: May 2008
Location: Fredericksburg, Va
Posts: 9,579
Bikes: '65 Frejus TDF, '73 Bottecchia Giro d'Italia, '83 Colnago Superissimo, '84 Trek 610, '84 Trek 760, '88 Pinarello Veneto, '88 De Rosa Pro, '89 Pinarello Montello, '94 Burley Duet, 97 Specialized RockHopper, 2010 Langster, Tern Link D8
Mentioned: 73 Post(s)
Tagged: 0 Thread(s)
Quoted: 1607 Post(s)
Liked 2,214 Times
in
1,103 Posts
Yes. Use to carry the pictured one on my Montello. Hit a hard bump on the MUP and it was knocked off! Almost caught in my spokes. Certainly upset my riding rhythm! Another time I hit it when using my DT's. CO2 is now the source of filling repaired innertubes or replacement sew ups.
__________________
Bikes don't stand alone. They are two tired.
Bikes don't stand alone. They are two tired.