drill gyro hole dimentions? Help Simplify fitbikeco's hole mappings

110130 my_bike_is_rust https://bmx-media-bucket-photo.s3.amazonaws.com/photos/users/110130/avatar/c50_colman_high_hop_1417055514.jpg?1417055014 https://www.vitalbmx.com/community/my-bike-is-rust,110130/all 01/30/14 25 31 4 2

Posts: 56

Joined: 1/30/2014

Location: CAN

10/5/2014 2:32 PM
Edited Date/Time: 10/5/2014 2:36 PM

hey, im traveling to hong kong in a month to ride, the streets are extreamly busy and i want brakes to be on the safe side...not looking for a straight cable tho, so does anyone know how to simplify this for me and give me the main points on what size bit and what sized punch i need to drill a gyro tab hole on the headtube, what do these numbers even mean?, my local bmx specific bike shop doesnt even know but i have access to his drill press....fitbikeco sent me the mappings for where to drill in my wifi frame.....any knowledge will help, thanks.

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bmxsteve99

104707 bmxsteve99 https://bmx-media-bucket-photo.s3.amazonaws.com/photos/users/104707/avatar/c50_vital5.17.15_1431899110.jpg?1431899062 https://www.vitalbmx.com/community/bmxsteve99,104707/all 04/14/13 82 3711 2 3

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10/5/2014 2:35 PM

You need a tap as well

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refs: hookjrclc, hardbmxtim, hatchmoses for sale and trade, kymike for sale and trade, blizzbikes for trade, and some other dude i cant remember his username, vrsapat956, colonydirt94, mario.villegas90, wolfen
Camera Setup: Panasonic HMC150, Panasonic GH2, Canon FTBn, Yashica Lynx 5000e, Canon 28mm f/2.8, Canon 50mm f1.4, Rokinon 7.5mm f/3.5

my_bike_is_rust

110130 my_bike_is_rust https://bmx-media-bucket-photo.s3.amazonaws.com/photos/users/110130/avatar/c50_colman_high_hop_1417055514.jpg?1417055014 https://www.vitalbmx.com/community/my-bike-is-rust,110130/all 01/30/14 25 31 4 2

Posts: 56

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10/5/2014 2:43 PM

yep i know, we got that, just we dont understand what the numbers mean, mm, cm, inch? and what drill bit size i need

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Silentman_Man

94915 Silentman_Man https://bmx-media-bucket-photo.s3.amazonaws.com/photos/users/94915/avatar/c50_no_frisbee_dog_1375208731.jpg?1375207982 https://www.vitalbmx.com/community/Silentman-Man,94915/all 06/07/12 1 https://www.vitalbmx.com/community/Silentman-Man,94915/setup 32 292 2 1

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Location: Victorville, CA USA

10/5/2014 2:43 PM

if you have a bike shop near you they can do it

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bmxsteve99

104707 bmxsteve99 https://bmx-media-bucket-photo.s3.amazonaws.com/photos/users/104707/avatar/c50_vital5.17.15_1431899110.jpg?1431899062 https://www.vitalbmx.com/community/bmxsteve99,104707/all 04/14/13 82 3711 2 3

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Location: Goleta, CA USA

10/5/2014 2:43 PM

S&m/fit do not make brake mounts with gyro tabs
Find another company that makes gyro tabs and email them asking the size

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refs: hookjrclc, hardbmxtim, hatchmoses for sale and trade, kymike for sale and trade, blizzbikes for trade, and some other dude i cant remember his username, vrsapat956, colonydirt94, mario.villegas90, wolfen
Camera Setup: Panasonic HMC150, Panasonic GH2, Canon FTBn, Yashica Lynx 5000e, Canon 28mm f/2.8, Canon 50mm f1.4, Rokinon 7.5mm f/3.5

bmxsteve99

104707 bmxsteve99 https://bmx-media-bucket-photo.s3.amazonaws.com/photos/users/104707/avatar/c50_vital5.17.15_1431899110.jpg?1431899062 https://www.vitalbmx.com/community/bmxsteve99,104707/all 04/14/13 82 3711 2 3

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10/5/2014 2:46 PM

my_bike_is_rust wrote:
yep i know, we got that, just we dont understand what the numbers mean, mm, cm, inch? and what drill bit size i need

my_bike_is_rust wrote:
yep i know, we got that, just we dont understand what the numbers mean, mm, cm, inch? and what drill bit size i need

...more

The numbers on the left are the locations of the holes relative to the top of the top tube
One is .850 inches, the other is .3165 from the first one
The number on the left are the hole diameter (.128) and the other is saying that the thread type is m4 x .7

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refs: hookjrclc, hardbmxtim, hatchmoses for sale and trade, kymike for sale and trade, blizzbikes for trade, and some other dude i cant remember his username, vrsapat956, colonydirt94, mario.villegas90, wolfen
Camera Setup: Panasonic HMC150, Panasonic GH2, Canon FTBn, Yashica Lynx 5000e, Canon 28mm f/2.8, Canon 50mm f1.4, Rokinon 7.5mm f/3.5

bmxsteve99

104707 bmxsteve99 https://bmx-media-bucket-photo.s3.amazonaws.com/photos/users/104707/avatar/c50_vital5.17.15_1431899110.jpg?1431899062 https://www.vitalbmx.com/community/bmxsteve99,104707/all 04/14/13 82 3711 2 3

Posts: 3793

Joined: 4/14/2013

Location: Goleta, CA USA

10/5/2014 2:48 PM

So what I am getting is that you measure .850 from the top and drill a .128" hole and at .3165 down from the first hole
The n you use a m4 x .7 tap to thread the holes

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refs: hookjrclc, hardbmxtim, hatchmoses for sale and trade, kymike for sale and trade, blizzbikes for trade, and some other dude i cant remember his username, vrsapat956, colonydirt94, mario.villegas90, wolfen
Camera Setup: Panasonic HMC150, Panasonic GH2, Canon FTBn, Yashica Lynx 5000e, Canon 28mm f/2.8, Canon 50mm f1.4, Rokinon 7.5mm f/3.5

my_bike_is_rust

110130 my_bike_is_rust https://bmx-media-bucket-photo.s3.amazonaws.com/photos/users/110130/avatar/c50_colman_high_hop_1417055514.jpg?1417055014 https://www.vitalbmx.com/community/my-bike-is-rust,110130/all 01/30/14 25 31 4 2

Posts: 56

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Location: CAN

10/5/2014 2:51 PM

bmxsteve99 wrote:
So what I am getting is that you measure .850 from the top and drill a .128" hole and at .3165 down from the first hole
The n ...more

bmxsteve99 wrote:
So what I am getting is that you measure .850 from the top and drill a .128" hole and at .3165 down from the first hole
The n you use a m4 x .7 tap to thread the holes

...more

oh crap i ant believe i couldnt figure that out........thanks so much man

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my_bike_is_rust

110130 my_bike_is_rust https://bmx-media-bucket-photo.s3.amazonaws.com/photos/users/110130/avatar/c50_colman_high_hop_1417055514.jpg?1417055014 https://www.vitalbmx.com/community/my-bike-is-rust,110130/all 01/30/14 25 31 4 2

Posts: 56

Joined: 1/30/2014

Location: CAN

10/5/2014 2:52 PM

Silentman_Man wrote:
if you have a bike shop near you they can do it

Silentman_Man wrote:
if you have a bike shop near you they can do it

...more

oh and my local bmx specific bike shop couldnt help me.....i can only use his drill press and do it my self

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bmxsteve99

104707 bmxsteve99 https://bmx-media-bucket-photo.s3.amazonaws.com/photos/users/104707/avatar/c50_vital5.17.15_1431899110.jpg?1431899062 https://www.vitalbmx.com/community/bmxsteve99,104707/all 04/14/13 82 3711 2 3

Posts: 3793

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Location: Goleta, CA USA

10/5/2014 2:53 PM

Found the tap you need from McMaster carr
You will need a tap holder as well http://www.mcmaster.com/#8327A43

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refs: hookjrclc, hardbmxtim, hatchmoses for sale and trade, kymike for sale and trade, blizzbikes for trade, and some other dude i cant remember his username, vrsapat956, colonydirt94, mario.villegas90, wolfen
Camera Setup: Panasonic HMC150, Panasonic GH2, Canon FTBn, Yashica Lynx 5000e, Canon 28mm f/2.8, Canon 50mm f1.4, Rokinon 7.5mm f/3.5

my_bike_is_rust

110130 my_bike_is_rust https://bmx-media-bucket-photo.s3.amazonaws.com/photos/users/110130/avatar/c50_colman_high_hop_1417055514.jpg?1417055014 https://www.vitalbmx.com/community/my-bike-is-rust,110130/all 01/30/14 25 31 4 2

Posts: 56

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Location: CAN

10/5/2014 2:58 PM

i found some in canadian tire..........

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bmxsteve99

104707 bmxsteve99 https://bmx-media-bucket-photo.s3.amazonaws.com/photos/users/104707/avatar/c50_vital5.17.15_1431899110.jpg?1431899062 https://www.vitalbmx.com/community/bmxsteve99,104707/all 04/14/13 82 3711 2 3

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10/5/2014 3:01 PM

my_bike_is_rust wrote:
i found some in canadian tire..........

my_bike_is_rust wrote:
i found some in canadian tire..........

...more

Huh?

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refs: hookjrclc, hardbmxtim, hatchmoses for sale and trade, kymike for sale and trade, blizzbikes for trade, and some other dude i cant remember his username, vrsapat956, colonydirt94, mario.villegas90, wolfen
Camera Setup: Panasonic HMC150, Panasonic GH2, Canon FTBn, Yashica Lynx 5000e, Canon 28mm f/2.8, Canon 50mm f1.4, Rokinon 7.5mm f/3.5

my_bike_is_rust

110130 my_bike_is_rust https://bmx-media-bucket-photo.s3.amazonaws.com/photos/users/110130/avatar/c50_colman_high_hop_1417055514.jpg?1417055014 https://www.vitalbmx.com/community/my-bike-is-rust,110130/all 01/30/14 25 31 4 2

Posts: 56

Joined: 1/30/2014

Location: CAN

10/5/2014 3:23 PM

my_bike_is_rust wrote:
i found some in canadian tire..........

my_bike_is_rust wrote:
i found some in canadian tire..........

...more

bmxsteve99 wrote:
Huh?

bmxsteve99 wrote:
Huh?

...more

its a hardware store in canada lol.....they have the tap size and drill bit that i need.....i bought it as a kit....it has a 1/8 bit (which is 0.125") so its close enough to 0.128 that i need.....and in the kit there is a m4 x .7 tap bit, so im set...... all i gotta do is use the drill press and a tapping t handle and im set....thanks for the help

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BNC