Off weekend - Moto to MTB brakes?

Mototech853
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Itasca, IL, USA
6/30/2026 10:28am
ando wrote:
Sockets drives use imperial sizes - 1/4, 3/8, 1/2 in.   There are still enough imperial sized bolts & nuts, and American made stuff, that I...

Sockets drives use imperial sizes - 1/4, 3/8, 1/2 in.   There are still enough imperial sized bolts & nuts, and American made stuff, that I keep a set of metric and imperial sockets and spanners.

I owned a tool truck for nine years so I’m well versed in ratchet drive sizes. My 14 year old son has been spending more time in the garage with me and asked the simple question of why are the ratchet drives imperial when the ROW uses the metric system. A 2010 Polaris Ranger I was working on used some imperial fasteners on the chassis and metric on the engine. I believe class 8 trucks do the same. 

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Mototech853
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Itasca, IL, USA
6/30/2026 10:33am

On topic my son says it takes him a few minutes to readjust to the brakes on his mountain bike after racing his dirt bike but never the other way around. I’ve had an Ellsworth Joker and Santa Cruz Nomad built by LBS and they didn’t want to swap the front to the right side. Never knew why bicycles were opposite from motorcycles. 

ando
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Perth, AU
6/30/2026 1:24pm
ando wrote:
Sockets drives use imperial sizes - 1/4, 3/8, 1/2 in.   There are still enough imperial sized bolts & nuts, and American made stuff, that I...

Sockets drives use imperial sizes - 1/4, 3/8, 1/2 in.   There are still enough imperial sized bolts & nuts, and American made stuff, that I keep a set of metric and imperial sockets and spanners.

I owned a tool truck for nine years so I’m well versed in ratchet drive sizes. My 14 year old son has been spending more time...

I owned a tool truck for nine years so I’m well versed in ratchet drive sizes. My 14 year old son has been spending more time in the garage with me and asked the simple question of why are the ratchet drives imperial when the ROW uses the metric system. A 2010 Polaris Ranger I was working on used some imperial fasteners on the chassis and metric on the engine. I believe class 8 trucks do the same. 

Anything with a Cat engine will still have imperial bolts.  I had Cummins engines in a boat and I think that had imperial fasteners too.

Did you guys ever have to deal with Whitworth sizes?

Tyler D
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La, CA, USA
6/30/2026 4:52pm Edited Date/Time 6/30/2026 4:58pm
Radical wrote:
I always assumed the rear brake was on the right because many bikes back in the day had only one brake (rear), and you'd want to...

I always assumed the rear brake was on the right because many bikes back in the day had only one brake (rear), and you'd want to use your dominant hand to pull it.

If you had a front brake, you'd want to use your non-dominant hand to pull it.

I don't switch them.  Bicycles and Motorcycles are different animals.

Btw: Metric is better.  The reason the U.S. hasn't switched is that the vast majority of our machines were not metric. That's less of a problem today.  We should switch.

Out of curiosity, what industries, if any are metric in the US- has space, military, aviation, electrical, chemical, automotive made the switch? Presumably anything needing input...

Out of curiosity, what industries, if any are metric in the US- has space, military, aviation, electrical, chemical, automotive made the switch? Presumably anything needing input from the US and ROW is metric? I can remember in NZ back in the 70's having to double up tools depending on whether you were working on Japanese or UK cars or bikes, total (expensive) pain, but at least you weren't trying to interconnect systems too much.

Radical wrote:
I don't know today without researching it.  In the 80's, when I was a Precision Sheet Metal Mechanic (like a Machinist, but dealing with sheet metal)...

I don't know today without researching it.  In the 80's, when I was a Precision Sheet Metal Mechanic (like a Machinist, but dealing with sheet metal), all of our machines were Imperial.  Almost 100% of blueprints were in Inches.  I remember that the U.S. was attempting to transition, but that it was going to be too difficult and expensive.

The automotive industry in the U.S. is partially metric because they source parts and even transmissions and engines from other automotive companies.

I've been a software developer for the last 35 years.  I'm about to start designing my own physical products.  They'll be almost entirely metric.  For what I'm doing, there's no reason not to.  It's time.

I recently did some track prep in my late model camero...some of the seatbelt anchor bolts were metric, and some other critical bolts in the exact same area were imperial. (most of the car is metric to be fair). blows my mind. 

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The Shop

Radical
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San Diego, CA, USA
6/30/2026 6:37pm
ando wrote:
Sockets drives use imperial sizes - 1/4, 3/8, 1/2 in.   There are still enough imperial sized bolts & nuts, and American made stuff, that I...

Sockets drives use imperial sizes - 1/4, 3/8, 1/2 in.   There are still enough imperial sized bolts & nuts, and American made stuff, that I keep a set of metric and imperial sockets and spanners.

I owned a tool truck for nine years so I’m well versed in ratchet drive sizes. My 14 year old son has been spending more time...

I owned a tool truck for nine years so I’m well versed in ratchet drive sizes. My 14 year old son has been spending more time in the garage with me and asked the simple question of why are the ratchet drives imperial when the ROW uses the metric system. A 2010 Polaris Ranger I was working on used some imperial fasteners on the chassis and metric on the engine. I believe class 8 trucks do the same. 

I have Imperial and Metric tools.  When I had a couple Ford Rangers (1993 and 2000 4.0L), my metric tools worked for almost everything.  Sometimes you need an actual 1/2" socket, but most of the time there's a metric socket or wrench that works for any Imperial size, not loose, not tight.  Very surprising.

The transmissions are metric.  Is the U.S. auto industry already in the process of making the switch to metric?

It's not something I'm passionate about.  Considering that we're in a global economy, and the rest of the world is metric, I believe it's smart to design metric for most things.  As Early said earlier, it's almost impossible to find Imperial hardware in most of the world, yet metric is only slightly difficult to find in the U.S.  Even Home Depot carries a pretty good selection now.

RDnutz
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Dolores, CO, USA
7/1/2026 7:35am

I had 1987, 1993, 2000, 2006 Rangers. Single and Supercab, 4 & 6 cyls. They were mostly metric because they were largely rebadged Mazda B Series trucks.

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Falcon
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Menifee, CA, USA
7/1/2026 8:18am
NSP139 wrote:
I tried to get used to the US Style doing cross country never could get the muscle memory I've always had to switch them to Moto...

I tried to get used to the US Style doing cross country never could get the muscle memory I've always had to switch them to Moto Style. Damn near died at Greer on a demo intense carbine that didn't have them switched made for a short trip lol

Falcon wrote:

A short trip to Endonesia? 

 

NSP139 wrote:

LOL yep on the tower side one of the rock drops I believe it was Enduro 215 Trail🤪

I'd bet it was 100 yards past the spot where the trail splits to the right. (You started on "215 Enduro" and went onto "Break Right.") Big slab of rock with a hard left right after it. I started hucking that drop instead of rolling it, because it's almost an endo even if your brakes are in the right place!!! 

NSP139
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7/1/2026 9:21am
Falcon wrote:

A short trip to Endonesia? 

 

NSP139 wrote:

LOL yep on the tower side one of the rock drops I believe it was Enduro 215 Trail🤪

Falcon wrote:
I'd bet it was 100 yards past the spot where the trail splits to the right. (You started on "215 Enduro" and went onto "Break Right.")...

I'd bet it was 100 yards past the spot where the trail splits to the right. (You started on "215 Enduro" and went onto "Break Right.") Big slab of rock with a hard left right after it. I started hucking that drop instead of rolling it, because it's almost an endo even if your brakes are in the right place!!! 

Exactly it was a demo bike so I was trying to be careful and just drag the back brake down LOL if I would have just hucked it would have been fine that's what I get for thinking! Needless to say I didn't buy the bike gave me a bad taste lol

Radical
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7/1/2026 4:29pm
RDnutz wrote:
I had 1987, 1993, 2000, 2006 Rangers. Single and Supercab, 4 & 6 cyls. They were mostly metric because they were largely rebadged Mazda B Series...

I had 1987, 1993, 2000, 2006 Rangers. Single and Supercab, 4 & 6 cyls. They were mostly metric because they were largely rebadged Mazda B Series trucks.

That's funny.  I thought Mazda was re-badging Ford Rangers.

RDnutz
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7/1/2026 4:37pm
Radical wrote:

That's funny.  I thought Mazda was re-badging Ford Rangers.

that may be the case currently, but the older ones were based on the B series, and Ford owned an interest in Mazda. I seem to remember Ford eventually sold off their stake in Mazda when they were having some financial issues a couole years ago.

skypig
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Caloundra, AU
7/1/2026 5:07pm

Another Australian - where motorcycles and push bikes both have the front brake on the RHS - makes sense, and I’m glad it’s the case.

I’d like to swap my Road Race bikes to “Race Pattern” - 1 up, 5 down. It allows you to change “up” accelerating out of corners while leaned over too far to get your toes under the shifter.
Friends do it “no problem” - Just remember if your head is down (behind the fairing) push down - if it’s up (braking) pull up.
Over 50 years of shifting normally - I feel I’d definitely be redlining one day and in the heat of battle shift down. Wouldn’t be pretty.

Radical
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San Diego, CA, USA
7/1/2026 5:13pm
Radical wrote:

That's funny.  I thought Mazda was re-badging Ford Rangers.

RDnutz wrote:
that may be the case currently, but the older ones were based on the B series, and Ford owned an interest in Mazda. I seem to...

that may be the case currently, but the older ones were based on the B series, and Ford owned an interest in Mazda. I seem to remember Ford eventually sold off their stake in Mazda when they were having some financial issues a couole years ago.

No wonder my metric tools worked so well on them!

Sparkalounger
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Minneapolis, MN, USA
7/1/2026 5:18pm
gerg wrote:
As far as I know it's standard in Australia to have the front brake on a pushy on the RHS, which is clearly the correct way.Just...

As far as I know it's standard in Australia to have the front brake on a pushy on the RHS, which is clearly the correct way.

Just like we drive on the correct side of the road, our water goes down the drain rotating the correct way and we have cyclones which is the correct term for big fucking storm.

 

We also use the metric system where 10mm = 1cm, 100cm = 1 meter, 1000 meters = 1km and so on and so forth...so when we reach for a spanner (correct term for wrench), we don't need to stand on our heads drinking a glass of water trying to figure out what 1/8th of a 16th of a 1/4 of a 12th of an inch is.

As an American, I support this post!

skypig
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Location
Caloundra, AU
7/1/2026 5:37pm
gerg wrote:
As far as I know it's standard in Australia to have the front brake on a pushy on the RHS, which is clearly the correct way.Just...

As far as I know it's standard in Australia to have the front brake on a pushy on the RHS, which is clearly the correct way.

Just like we drive on the correct side of the road, our water goes down the drain rotating the correct way and we have cyclones which is the correct term for big fucking storm.

 

We also use the metric system where 10mm = 1cm, 100cm = 1 meter, 1000 meters = 1km and so on and so forth...so when we reach for a spanner (correct term for wrench), we don't need to stand on our heads drinking a glass of water trying to figure out what 1/8th of a 16th of a 1/4 of a 12th of an inch is.

3
7/3/2026 7:07am
Radical wrote:
I can't imagine using only the front brake on a mountain bike while riding one handed.  It seems like asking for a trip over the bars...

I can't imagine using only the front brake on a mountain bike while riding one handed.  It seems like asking for a trip over the bars.  The rear brake on a bicycle is forgiving, the front brake is not.

Ridden plenty of technical trails with a shovel in one hand and another on the bars with front brake only. All you need to do, like on a dirt bike, is position your body and don't over do it. The rear brake has far less stopping power. That is the trade off. I rarely, if ever, rely on the rear brakes for anything. 

One of the first things people should do is practice emergency braking and train their brain not to reef on the lever - regardless of any type of bike. For unskilled riders, most people will just say go slower and use the rear brakes. 

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