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  #1  
Old 10-17-2020, 02:06 PM
Netdewt Netdewt is offline
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Join Date: Oct 2013
Location: Minneapolis, MN
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Surly Pack Rat Gravel Tourer

This is my current, longstanding, "project" bike. I don't care how fast I go, and steel rides best for me. I originally was building this on a purple GT Tachyon 700D frame, but I lost interest in trying to figure out the U brake setup. When the 650b-rim-brake Pack Rat was released, it was an obvious choice for me.

Frame: Surly Pack Rat 56cm
Wheels: Velocity A23 650b, Miche hubs, built by Velomine
Tires: Bruce Gordon Rock 'n Road 43c
Derailleurs: Campy 10sp Centaur rear, Veloce CT front, KMC chain
Shifters: Campy Record bar-end on downtube, custom washers
Brakes: Paul Mini Moto (Paul levers coming soon)
Cranks: Shimano XT M785, VP VX Trail pedals
Rack: Surly "Front Rack", Rec mount, Niterider 1800
Cages: King Cage, 2 standard, 1 Manything
Handlebars: Jones H-Bar SG Loop, Broadfork Banana Hammock
Stem, headset, skewers, seatpost: Velo Orange
Saddle: Brooks Cambium C17S

I wanted to show a small thing I'm working on for it: a frame pump peg adapter for behind the seat tube.

I discovered that a frame pump I already had in my parts bin fits behind the seat tube wedged between the seat tube and seat stay, and the other end on a fender boss. The connection on the bottom is a little less that stable, so I am working on a 3D printed peg. I've never done any 3D design or printing. My neighbor suggested using TinkerCAD, has a printer, and offered to help.

Pics at the bottom are the V1 part, and it failed in several ways.
Attached Images
File Type: jpg packrat.jpg (140.8 KB, 226 views)
File Type: jpg pump.jpg (129.2 KB, 219 views)
File Type: jpg Screen Shot 2020-10-11 at 11.31.44 PM.jpg (31.0 KB, 223 views)
File Type: jpg v1.jpg (88.6 KB, 223 views)

Last edited by Netdewt; 10-17-2020 at 10:06 PM.
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  #2  
Old 10-17-2020, 05:39 PM
Netdewt Netdewt is offline
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Join Date: Oct 2013
Location: Minneapolis, MN
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V2 is looking really nice.
Attached Images
File Type: jpg IMG_4980.jpg (105.1 KB, 206 views)
File Type: png Screen Shot 2020-10-14 at 11.22.40 PM.png (130.1 KB, 192 views)

Last edited by Netdewt; 10-17-2020 at 07:27 PM.
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  #3  
Old 10-17-2020, 05:48 PM
thirdgenbird thirdgenbird is offline
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Nice. Will the pump fit in the reduced length?
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  #4  
Old 10-17-2020, 07:24 PM
Netdewt Netdewt is offline
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Location: Minneapolis, MN
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V2 fits, and the pump fits with it mounted. It needs another version to keep from rubbing on the front derailleur cable, and a slightly shorter peg.
Attached Images
File Type: jpg IMG_4986.jpg (139.0 KB, 196 views)
File Type: jpg IMG_4987.jpg (84.0 KB, 192 views)
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  #5  
Old 10-17-2020, 07:53 PM
thirdgenbird thirdgenbird is offline
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Get those Paul levers on!
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  #6  
Old 10-17-2020, 09:37 PM
Netdewt Netdewt is offline
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Here's V3. I hope this is the one.

I moved the peg about 5mm away from the seat tube (and cable that is touching). Gave the boss a tad more room. Increased the diameter of the top curve a little, which also helped to me get the peg further away. The peg is shorter too. I think I am really close to 17º rotation on the peg from top-center (STA is 72.5º).
Attached Images
File Type: jpg Screen Shot 2020-10-17 at 9.32.41 PM.jpg (31.6 KB, 170 views)

Last edited by Netdewt; 10-18-2020 at 05:42 PM.
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  #7  
Old 10-18-2020, 05:48 AM
Smitty2k1 Smitty2k1 is offline
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Gotta see some pics of that pump installed! Great idea

Sent from my SM-G960U1 using Tapatalk
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  #8  
Old 10-18-2020, 01:01 PM
Netdewt Netdewt is offline
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Here’s a bad pic of how it fits. This is without any peg, just wedged on the brace and fender boss.
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File Type: jpeg 12C4814B-AC61-4D67-BE94-D2944BCA8240.jpeg (78.0 KB, 122 views)
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  #9  
Old 10-19-2020, 10:45 AM
Netdewt Netdewt is offline
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V3 looking good...
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File Type: jpg IMG_4998.jpg (126.0 KB, 97 views)
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  #10  
Old 10-19-2020, 12:53 PM
Netdewt Netdewt is offline
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Success!

(yes it is snowing)
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File Type: jpg IMG_4999.jpg (148.7 KB, 86 views)
File Type: jpg IMG_5001.jpg (86.8 KB, 86 views)
File Type: jpg IMG_5002.jpg (137.4 KB, 89 views)
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  #11  
Old 10-19-2020, 01:09 PM
thirdgenbird thirdgenbird is offline
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Well done. Great use of space,
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  #12  
Old 10-19-2020, 08:05 PM
NHAero NHAero is offline
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Very cool. Does it matter that water and road schmutz might get into the pump handle? I have a min-pump in a somewhat similar location on my Big Dummy, but it has fenders, and even so I wonder if the day I need it, will it work?

Great build!
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  #13  
Old 10-19-2020, 08:22 PM
gomango gomango is offline
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Quote:
Originally Posted by NHAero View Post
Very cool. Does it matter that water and road schmutz might get into the pump handle? I have a min-pump in a somewhat similar location on my Big Dummy, but it has fenders, and even so I wonder if the day I need it, will it work?

Great build!
Mine works fine.

[IMG]IMG_6502 by Grady Linehan, on Flickr[/IMG]
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  #14  
Old 10-19-2020, 09:50 PM
Netdewt Netdewt is offline
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I don’t tend to ride in much wet, at least not on this bike, so I’m not too worried. If I did I’d have fenders.

Hey Grady! Glad to see the Canti rack from my last SUV bike still in use.
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  #15  
Old 10-19-2020, 09:57 PM
thirdgenbird thirdgenbird is offline
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You could always cut a section of old inner tube to make a seal for the handle if needed.
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