Re: [TheThinkTank] Thethinktank Digest, Vol 138, Issue 6
Measure the distance between the pivot and where the cable end sits. Short pull measure about 25mm and long pull about 35mm.
On Fri, Mar 9, 2018 at 4:05 PM, < thethinktank-request@lists.bikecollectives.org> wrote:
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Today's Topics:
- Brake Handle Identification (Ron Kellis)
- Re: Brake Handle Identification (David Oliver)
- Re: Brake Handle Identification (Jack Murphy)
---------- Forwarded message ---------- From: Ron Kellis ron.kellis@velocitycoop.org To: The Think Tank Thethinktank@lists.bikecollectives.org Cc: Bcc: Date: Fri, 9 Mar 2018 07:25:05 -0500 Subject: [TheThinkTank] Brake Handle Identification Salvaged brake handles are rarely kept with the calipers. Anyone have a reasonably reliable method for identifying long pull vs. short pull handles?
TIA
Ron
-- Ron Kellis | Véloteer & Basic Maintenance Instructor | VéloCity Bicycle Co-op | 2111 Mt. Vernon Ave., Alexandria, VA 22301 | velocitycoop.org | +1 (703) 549-1108
---------- Forwarded message ---------- From: David Oliver nowhere3@gmail.com To: ron.kellis@velocitycoop.org, The Think Tank < thethinktank@lists.bikecollectives.org> Cc: Bcc: Date: Fri, 9 Mar 2018 08:02:50 -0500 Subject: Re: [TheThinkTank] Brake Handle Identification There are three ways that I teach people how to identify the difference.
First is the obvious one that if it says V-Brake on the brake, it's long pull.
Second is that if you look at most flat bar brake levers there are two holes, or at least an indent where a second hole could be, where the part that the head of the cable can go into is (the silver bit in this photo: https://www.parktool.com/assets/img/repairhelp/housingU_005.jpg). If it's in the top hole, then it's long pull. If it's in the bottom hole then it's short pull. There are sometimes a little "C" and a little "V" next to those holes/indent that make it even easier.
If that second one doesn't make sense, I can get a photo later today and send it to you.
Third is by measuring the distance from the pivot point to where the head of the cable goes. Park Tool says that it is 21mm for short pull: https://www.parktool.com/assets/img/repairhelp/ta-flatbar-conv.jpg and 42mm for long pull: https://www.parktool.com/assets/img/repairhelp/ta- linearpull.jpg
In practice for the third method I tell people to measure with a ruler the distance and if it's less than 30mm then it's short pull, if it's more than 35mm then it's long pull and if it's hard to tell or somewhere inbetween then it's hard to tell without testing it.
On Fri, Mar 9, 2018 at 7:25 AM, Ron Kellis ron.kellis@velocitycoop.org wrote:
Salvaged brake handles are rarely kept with the calipers. Anyone have a reasonably reliable method for identifying long pull vs. short pull handles?
TIA
Ron
-- Ron Kellis | Véloteer & Basic Maintenance Instructor | VéloCity Bicycle Co-op | 2111 Mt. Vernon Ave., Alexandria, VA 22301 | velocitycoop.org | +1 (703) 549-1108
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---------- Forwarded message ---------- From: Jack Murphy jack@bikewalkwichita.org To: The Think Tank thethinktank@lists.bikecollectives.org Cc: Bcc: Date: Fri, 9 Mar 2018 08:42:29 -0600 Subject: Re: [TheThinkTank] Brake Handle Identification Nice quick article. I pulled it down to our how-to's folder on our Drive. So many variations! Still trying to figure how to get all this info to volunteers as they learn. Jack Murphy Bike Walk Wichita
On Fri, Mar 9, 2018 at 7:02 AM, David Oliver nowhere3@gmail.com wrote:
There are three ways that I teach people how to identify the difference.
First is the obvious one that if it says V-Brake on the brake, it's long pull.
Second is that if you look at most flat bar brake levers there are two holes, or at least an indent where a second hole could be, where the part that the head of the cable can go into is (the silver bit in this photo: https://www.parktool.com/assets/img/repairhelp/housingU_005.jpg). If it's in the top hole, then it's long pull. If it's in the bottom hole then it's short pull. There are sometimes a little "C" and a little "V" next to those holes/indent that make it even easier.
If that second one doesn't make sense, I can get a photo later today and send it to you.
Third is by measuring the distance from the pivot point to where the head of the cable goes. Park Tool says that it is 21mm for short pull: https://www.parktool.com/assets/img/repairhelp/ta-flatbar-conv.jpg and 42mm for long pull: https://www.parktool.com /assets/img/repairhelp/ta-linearpull.jpg
In practice for the third method I tell people to measure with a ruler the distance and if it's less than 30mm then it's short pull, if it's more than 35mm then it's long pull and if it's hard to tell or somewhere inbetween then it's hard to tell without testing it.
On Fri, Mar 9, 2018 at 7:25 AM, Ron Kellis ron.kellis@velocitycoop.org wrote:
Salvaged brake handles are rarely kept with the calipers. Anyone have a reasonably reliable method for identifying long pull vs. short pull handles?
TIA
Ron
-- Ron Kellis | Véloteer & Basic Maintenance Instructor | VéloCity Bicycle Co-op | 2111 Mt. Vernon Ave., Alexandria, VA 22301 | velocitycoop.org | +1 (703) 549-1108
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-- Jack Murphy Jack@BikeWalkWichita.org
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Thank you Tagen!
On Fri, Mar 9, 2018 at 4:11 PM, Tegan Moss tegan@communitybikeshop.org wrote:
Measure the distance between the pivot and where the cable end sits. Short pull measure about 25mm and long pull about 35mm.
On Fri, Mar 9, 2018 at 4:05 PM, <thethinktank-request@lists. bikecollectives.org> wrote:
Send Thethinktank mailing list submissions to thethinktank@lists.bikecollectives.org
To subscribe or unsubscribe via the World Wide Web, visit http://lists.bikecollectives.org/listinfo.cgi/thethinktank-b ikecollectives.org
or, via email, send a message with subject or body 'help' to thethinktank-request@lists.bikecollectives.org
You can reach the person managing the list at thethinktank-owner@lists.bikecollectives.org
When replying, please edit your Subject line so it is more specific than "Re: Contents of Thethinktank digest..."
Today's Topics:
- Brake Handle Identification (Ron Kellis)
- Re: Brake Handle Identification (David Oliver)
- Re: Brake Handle Identification (Jack Murphy)
<Snip>
participants (2)
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Ron Kellis -
Tegan Moss