Cycling and bicycle discussion forums. 
   Click here to join our community Log in to access your Control Panel  


Go Back   > >

Bicycle Mechanics Broken bottom bracket? Tacoed wheel? If you're having problems with your bicycle, or just need help fixing a flat, drop in here for the latest on bicycle mechanics & bicycle maintenance.

User Tag List

Reply
 
Thread Tools Search this Thread
Old 01-29-09, 01:12 PM   #1
Ganzen
Free wheel
Thread Starter
 
Ganzen's Avatar
 
Join Date: Dec 2008
Location: Omaha, Nebraska
Bikes: 1978 Schwinn Traveller III, 1985 Nishiki Prestige, 1986 Raleigh Technium 480
Posts: 39
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Bartape - Shrink Wrap = Tidy Ending

Wrapping bartape from the bottom up makes sense but leads to issues about how to end the wrap at the top. Most people are familiar with using electrical tape to secure the end of the wrap however if the tape slips you will wind up with sticky black adhesive on your hands and then on most everything you touch.

While working as an electrician I have used heat shrink tubing for splicing and terminating large wire. However most of the heat shrink tubing in the larger sizes has adhesive inside that oozes out around the edges when you apply the heat to shrink the tubing. However a quick stop by my local electrical supply house netted me a lifetime supply of heat shrink tubing ($10) that is adhesive free and large enough to make tidy endings to my bar wrappings. This "termination" will not slip if properly installed nor will it leave sticky adhesive on my hands on a warm day and a 100 miles from home.

The details of this 3M product (FP-301) are in the pic below. The handle bar must be stripped. Cut two 1 1/4" wide strips of shrink tubing and slide them onto each side of the bar. Re install your brake handles and then wrap the bar as you would normally. Secure the end with electricians tape (wrapping in the same direction as the bartape) and trim away the excess bartape.

Next apply a little soapy water (or saliva) around the electrical tape and then spin the shrink tubing in the
same direction as the tape is wrapped while forcing the shrink tubing up and over the electrical tape. Next apply heat sparingly from a lighter (consider practicing on a loose piece of shrink tubing to see how much heat it can take before igniting) while being careful to keep the flame away from the bartape. Heat rises straight up so you may have to stand the bike on it's head to get the fllame to lick the shrink tubing at the right angle and cause it to shrink. Again a little practice might be in order.

Note: Shink tubing will shrink to 1/2 its' original diameter.

Ganzen

PS: I have also included a pic of an alternate use for shrink tubing. Covering cable crimps to prevent damage to the finish of your bike.
Attached Images
File Type: jpg Bartape with shrinkwrap 003.jpg (87.1 KB, 129 views)
File Type: jpg Bartape with shrinkwrap 004.jpg (101.7 KB, 136 views)
File Type: jpg Bartape with shrinkwrap 005.jpg (99.2 KB, 144 views)
File Type: jpg Bartape with shrinkwrap 006.jpg (100.8 KB, 190 views)
File Type: jpg Bartape with shrinkwrap 001.jpg (90.0 KB, 118 views)

Last edited by Ganzen; 01-29-09 at 02:06 PM.
Ganzen is offline   Reply With Quote
Old 01-29-09, 02:08 PM   #2
Ablaut
Latvietis
 
Ablaut's Avatar
 
Join Date: Oct 2008
Location: Chicago
Bikes: '86 Serotta Nova, '77 Schwinn SLT 12.2, '73 Fuji SSR
Posts: 336
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Comes out very clean & neat, genius idea Ganzen!
Ablaut is offline   Reply With Quote
Old 01-29-09, 02:21 PM   #3
demoncyclist 
Senior Member
 
demoncyclist's Avatar
 
Join Date: Oct 2002
Location: Medway, MA
Bikes: 2011 Lynskey Sportive, 1988 Cannondale SM400
Posts: 2,692
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 6 Post(s)
Use a heat gun instead of open flame. Works great.
__________________
DEMON

Satanic Mechanic
STAR 3 Spinning Instructor

2011 Lynskey Sportive (Shimano Ultegra 10s)
1988 Cannondale SM400 (Suntour XC-M 7s)
demoncyclist is offline   Reply With Quote
Old 01-29-09, 02:22 PM   #4
bikinfool
I have senior moments...
 
bikinfool's Avatar
 
Join Date: Oct 2008
Location: Woodside, CA
Bikes: Many
Posts: 2,152
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Now I've got another use for heat shrink tubing, cool. I've used heat shrink tubing to make a chainstay protector on a bike with a removeable dropout/hanger. Not just cable lock crimps, but you can use small heat shrink tubing on cable ends for a cleaner look than a crimp. You can get heat shrink tubing without adhesive but it can be a bit of a search for the larger diameters either way, and in more than one ratio of shrinkage, too.

I use a heat gun rather than a lighter, what's the advantage to using a lighter?
Attached Images
File Type: jpg IMG_0308.jpg (52.5 KB, 105 views)
bikinfool is offline   Reply With Quote
Old 01-29-09, 02:24 PM   #5
HillRider 
Senior Member
 
Join Date: Aug 2005
Location: Pittsburgh, PA
Bikes: '''96 Litespeed Catalyst, '05 Litespeed Firenze, '06 Litespeed Tuscany, '12 Surly Pacer, All are 3x8,9 or 10. It is hilly around here!
Posts: 28,847
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 66 Post(s)
Excellent idea. What original diameter shrink tubing do you buy? Will a hair dryer do to shrink it? I think a lighter flame is a bit harsh on the bar tape.

I've used small diameter shrink tubing to form ends on brake cables and shrink it with a butane lighter but I've never used it as the finishing "tape" for bar wrap.
HillRider is offline   Reply With Quote
Old 01-29-09, 02:40 PM   #6
jstraw97
Senior Member
 
jstraw97's Avatar
 
Join Date: Feb 2006
Bikes: Cannondale Synapse Carbon SL
Posts: 133
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
I'm with you on the slipping electrical tape. Next time I re-tape my bars I'm going to try your method.
jstraw97 is offline   Reply With Quote
Old 01-29-09, 02:55 PM   #7
Cannondaler
Senior Member
 
Cannondaler's Avatar
 
Join Date: Dec 2007
Location: Atlantic Beach, FL
Bikes: Cannondale F600sl, Windsor Falkirk Carbon
Posts: 205
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Great idea dude!
Cannondaler is offline   Reply With Quote
Old 01-29-09, 02:58 PM   #8
Hawaiiwrench
Senior Member
 
Join Date: Jan 2009
Location: Oahu, HI
Bikes: '94 DB Apex, '07 SBC Allez Elite
Posts: 126
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Very nice, thank you!
Hawaiiwrench is offline   Reply With Quote
Old 01-29-09, 04:15 PM   #9
dvs cycles
Senior Member
 
Join Date: Oct 2007
Location: SoCal
Bikes:
Posts: 1,163
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
That is a lot of trouble to go through. As an electrician and a cyclist for many many years I've never had any problems of my tape slipping and leaving adhesive on the bar tape.
Scotch 33 is your friend.
dvs cycles is offline   Reply With Quote
Old 01-29-09, 05:18 PM   #10
srglassw
Fitness/Recreation Rider
 
Join Date: Sep 2008
Location: Vancouver Island, BC, Canada
Bikes:
Posts: 20
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
You can often find non-adhesive shrink wrap tubing in various sizes in auto supply stores too.
srglassw is offline   Reply With Quote
Old 01-29-09, 06:20 PM   #11
Metzinger
Primate
 
Metzinger's Avatar
 
Join Date: Jan 2006
Location: gone
Bikes: Concorde Columbus SL, Rocky Mountain Edge, Sparta stadfiets
Posts: 2,582
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by dvs cycles View Post
That is a lot of trouble to go through. As an electrician and a cyclist for many many years I've never had any problems of my tape slipping and leaving adhesive on the bar tape.
...
But the point here is that Ganzen has found a way to elevate the art. Like getting a little blob of solder on the ends of your cable inners. Or just lining up the tire logos with the valve.

It's why we're here.
Metzinger is offline   Reply With Quote
Old 01-29-09, 07:33 PM   #12
Ganzen
Free wheel
Thread Starter
 
Ganzen's Avatar
 
Join Date: Dec 2008
Location: Omaha, Nebraska
Bikes: 1978 Schwinn Traveller III, 1985 Nishiki Prestige, 1986 Raleigh Technium 480
Posts: 39
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by bikinfool View Post
Now I've got another use for heat shrink tubing, cool. I've used heat shrink tubing to make a chainstay protector on a bike with a removeable dropout/hanger. Not just cable lock crimps, but you can use small heat shrink tubing on cable ends for a cleaner look than a crimp. You can get heat shrink tubing without adhesive but it can be a bit of a search for the larger diameters either way, and in more than one ratio of shrinkage, too.

I use a heat gun rather than a lighter, what's the advantage to using a lighter?
Nice use of the clear tube for a chainstay protector! I only used a lighter because that's what I had at hand. If you have a heat gun definitely use it instead (much better control).

Ganzen
Ganzen is offline   Reply With Quote
Old 01-29-09, 07:38 PM   #13
Ganzen
Free wheel
Thread Starter
 
Ganzen's Avatar
 
Join Date: Dec 2008
Location: Omaha, Nebraska
Bikes: 1978 Schwinn Traveller III, 1985 Nishiki Prestige, 1986 Raleigh Technium 480
Posts: 39
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by HillRider View Post
Excellent idea. What original diameter shrink tubing do you buy? Will a hair dryer do to shrink it? I think a lighter flame is a bit harsh on the bar tape.

I've used small diameter shrink tubing to form ends on brake cables and shrink it with a butane lighter but I've never used it as the finishing "tape" for bar wrap.
The original tubing size is 1". I would not want to use any hair dryer on my hair that would also get hot enough to shrink this tubing. It begins to shrink at a temp of around 100C (Thats 212 F!!!!!! LOL).

Ganzen
Ganzen is offline   Reply With Quote
Old 01-29-09, 08:14 PM   #14
xB_Nutt
Get on your bikes & ride!
 
xB_Nutt's Avatar
 
Join Date: May 2006
Location: Lextown
Bikes: See signature (it varys day to day)
Posts: 1,070
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Good idea, but I wouldn't want to mess with removing brake levers. Maybe on a new build. Oh yea he said use a heat gun not a hair dryer. 2 different animals. Heat gun gets a lot hotter and makes it easy to evenly distribute the heat.
__________________
Litespeed Classic
Soma Double Cross DC
xB_Nutt is offline   Reply With Quote
Old 01-29-09, 08:35 PM   #15
Shimagnolo
Senior Member
 
Shimagnolo's Avatar
 
Join Date: May 2008
Location: Zang's Spur, CO
Bikes:
Posts: 7,507
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 138 Post(s)
I like it!
I never knew they made it in a size that large.

I am using the BIke Ribbon Lock Rings on one of my bikes. The only downside is an issue shared with your method: The brifters and cables must be put on *after* the rings (or shrink-tubing). I wish they would make the rings in two pieces so they could be put on afterward. On the upside, the rings are very good at holding the cables in place while wrapping.
Shimagnolo is offline   Reply With Quote
Old 01-30-09, 03:17 AM   #16
tatfiend 
Gear Hub fan
 
Join Date: Nov 2008
Location: Reno, NV
Bikes: Civia Hyland Rohloff, Swobo Dixon, Colnago, Univega
Posts: 2,830
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
One internet source for shrink tubing in multiple typed and a wide variety of sizes, with and without internal glue, is smallparts.com. I just received their latest catalog.
tatfiend is offline   Reply With Quote
Old 01-30-09, 01:22 PM   #17
PunctualAlex
sucker for lugs
 
Join Date: Jun 2006
Location: Denver
Bikes: Shogun 800 (had to cull the herd)
Posts: 364
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
I wish I had read this thread a week ago, just because it requires re-installing bake cables and everything. On the other hand, this could work great for finishing the bar tape around bar-end shifters because it could just be slipped on the end after the shifter is installed.
PunctualAlex is offline   Reply With Quote
Old 01-30-09, 03:48 PM   #18
Grand Bois
Senior Member
 
Grand Bois's Avatar
 
Join Date: Mar 2005
Location: Pinole, CA, USA
Bikes:
Posts: 16,628
Mentioned: 3 Post(s)
Tagged: 0 Thread(s)
Quoted: 58 Post(s)
A hair dryer will work if you partially restrict the air intake with your hand and cause it to overheat. I've shrunk a lot of tubing that way while installing car stereos. I use shrink tubing instead of crimps on the ends of my brake and shifter cables. I've also had to replace my wife's hair dryer a couple of times after I burned them out. One of these days I'm going to get a real heat gun.
Grand Bois is offline   Reply With Quote
Old 01-30-09, 03:49 PM   #19
zhadum
Junior Member
 
zhadum's Avatar
 
Join Date: Sep 2007
Location: USA
Bikes: Giant Road Bike
Posts: 5
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Great idea
I am going to do this on the new bars I just got.
zhadum is offline   Reply With Quote
Old 01-30-09, 04:23 PM   #20
AEO
Senior Member
 
AEO's Avatar
 
Join Date: Jun 2007
Location: A Coffin Called Earth. or Toronto, ON
Bikes: Bianchi, Miyata, Dahon, Rossin
Posts: 12,258
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
if you buy quality 3M electrical tape, it won't give you that sticky and annoying adhesive residue.

but the heat shrink works too.
__________________
Food for thought: if you aren't dead by 2050, you and your entire family will be within a few years from starvation. Now that is a cruel gift to leave for your offspring. ;)
http://sanfrancisco.ibtimes.com/arti...ger-photos.htm
AEO is offline   Reply With Quote
Old 01-31-09, 02:35 AM   #21
bikinfool
I have senior moments...
 
bikinfool's Avatar
 
Join Date: Oct 2008
Location: Woodside, CA
Bikes: Many
Posts: 2,152
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by Ganzen View Post
Nice use of the clear tube for a chainstay protector! I only used a lighter because that's what I had at hand. If you have a heat gun definitely use it instead (much better control).

Ganzen
Wish I could take credit for an original idea, but saw it on another bike forum. Only works with a very few bikes, though. Same thread recently had an additional idea for a chainstay protector, as the Nomad no longer has the removable hanger/dropout, some guy is trying using spray on EZ-Liner; looks pretty cool.

An electrician without a heat gun? Don't you use shrink tubing on wiring bundles all the time?
bikinfool is offline   Reply With Quote
Old 01-31-09, 08:53 AM   #22
joejack951
Senior Member
 
joejack951's Avatar
 
Join Date: May 2004
Location: Wilmington, DE
Bikes: 1984 Trek 660, 2003 Specialized Hardrock, 2004 LOOK KG386i (RIP), 2005 Iron Horse Warrior Expert, 2009 Pedal Force CX1, 2014 Islabikes CNOC 14 (son's)
Posts: 10,106
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 132 Post(s)
Quote:
Originally Posted by Shimagnolo View Post
I am using the BIke Ribbon Lock Rings on one of my bikes. The only downside is an issue shared with your method: The brifters and cables must be put on *after* the rings (or shrink-tubing). I wish they would make the rings in two pieces so they could be put on afterward. On the upside, the rings are very good at holding the cables in place while wrapping.
I've installed the Bike Ribbon lockrings on two bikes now and even on oversized handlebars, the split in the rings allows you to snap the lockring over the handlebars. There is no need to remove the brifters to install them. It takes some force but the rings return to their original shape even after being spread quite far apart. I can take some pics to demonstrate if you'd like as I bought a few extra sets for any new bikes down the road.
joejack951 is online now   Reply With Quote
Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off



All times are GMT -6. The time now is 10:56 AM.