Very Important (for all mopeds with drum brakes)

Simon Belmont /

After falling off Tomos and breaking humerus bone, not being able to ride for 3 months or longer sucks.

So I want to warn everyone who's moped have drum brakes: after it rains, always ALWAYS make sure to start slow & gently apply brakes to scrape off all of the rust inside the drum before riding normally to avoid locking-up your wheel and falling off your bike.

Also, if you do fall, do not extend your arm, keep it inside close to your body.(edited)

Re: Very Important (for all mopeds with drum brakes)

♣Slew Foot♣ /

Tuck, think bag of potatoes...

Re: Very Important (for all mopeds with drum brakes)

That sucks.... sorry for your troubles Simon, Thanks for tip..

Re: Very Important (for all mopeds with drum brakes)

Simon, when did you do this? I had a cracked humerus but not broken thru. Took 6 weeks for myself as a 10 yr. old.

Sorry,Man! THANKS for the safety tip!

Re: Very Important (for all mopeds with drum brakes)

Captain Janeway /

Feel better soon!

Re: Very Important (for all mopeds with drum brakes)

I dislocated my elbow trying to catch myself from a fall on a skateboard as a teen. It's a subconscious reaction to try and stop yourself from falling. Best wishes dude feel better.

Re: Very Important (for all mopeds with drum brakes)

Probably more likely the 10+ y/o sava tires that caused the crash

Re: Very Important (for all mopeds with drum brakes)

yeah i'm thinking i've had plenty of bikes i leave out in the elements all year long, never seen a brake drum rust aside from bikes that are just chilling in a bush for like 20 years

Re: Very Important (for all mopeds with drum brakes)

I definitely locked up a nearly new set of cheap treats MB5 tires. ate some shit that time. they're mostly fine tires but not in the rain. and that's on a disk; I wasn't hammering on it or hamfisted crushing gobs of hard braking, pretty average trying to slow down. anyway, not trying to distract but rather further your point - don't underestimate rain. and to Daniels point, good tires help, although 10 year old savas are still probable better than 90% of the tires I foolishly keep trusting... fuckit. mopeds. if ya ain't wreckin' ya aint ridin, amirite?!

Re: Very Important (for all mopeds with drum brakes)

thanks; id be lucky if I can get my brakes to lock up. I just tightened my brakes the other day. I always start off slow since my bike is so old.

Re: Very Important (for all mopeds with drum brakes)

Simon Belmont /

@Don that happened at the end of last month but doc said I can't ride a bike for at least 2 more months.

@Daniel, the rear tire is 2 years old (purchased from treatland) the front one is original (about 6 years old). But it was stupid idea riding while road was still wet.

The thing about brake drum is - after it rains the brake is kind of rough when it grabs, sometimes even makes squeaking noise, going slowly and applying brake to scrape it off solves it, this isn't the first time rust on brake drum caused a fall, back when I had Tomos A35, similar thing happened only that time when I applied rear brake, it grabbed so much that it actually tore off metal clamp from the brake drum and tangled the brake cable wire around causing bike to fall, only that time there were no injuries.

Thanks guys.(edited)

Re: Very Important (for all mopeds with drum brakes)

Luckily I didn't go down but I experienced this back in December on my Vespa. Hadn't rode in a while due to bad ignition. Got the ignition fixed. Damn near dropped the bike at the end of my block.

Re: Very Important (for all mopeds with drum brakes)

Never experienced this, but will be aware, heal fast!

Re: Very Important (for all mopeds with drum brakes)

Honestly you could probably blame the tires as much as the brakes. I just put two new tires on a scooter and the front one is much stickier. Now the rear brakes lock up easily when braking hard.

Re: Very Important (for all mopeds with drum brakes)

You guys do know that lower tire air pressure enhances traction , right ?(edited)

Re: Very Important (for all mopeds with drum brakes)

Overpriced Parts /

Yeah it’s a Tomos brake shoe issue with wet roads

Nothing really to do with the most bikes that have have asbestos shoes on dry roads,

Riding in the rain everything locks up and skids, I know cause I had to commute with a moped or enduro motorcycle for several years in the snow and or rain you got to so careful it’s not funny,

In the winter blizzard 77-78 when I was riding a Italian moped I would just let the whole bike fall underneath me as I stood up at a stop, Way better than waiting hrs for a CTS Cleveland bus,

Though some days I had to take three buses to get from hi school to work and during the worst 77-78 blizzard the CTS bus broke down I had to walk almost 2 miles home with a 60 mph sideways wind and snow, my mustache and beard hairs were frozen with my snot, sweat and snow and ice!

If I wasn’t so young and I probably would’ve perished, I have a a few spots that are black on my face, neck and ears due to frostbite,

Re: Very Important (for all mopeds with drum brakes)

That was BAD weather. I was delivering fuel oil into some impossible areas with a SOHIO tanker back then.

Re: Very Important (for all mopeds with drum brakes)

Brandon Weiss (Detective brandon to you) /

I indeed find that after a spell of very humid or wet weather, the brake shoes on most of my bikes will grab super aggressively the first time you squeeze the lever.

I would speculate that a very thin film of flash rust forms on the drums, and causes the harsh bite.

Heal soon my friend!

Re: Very Important (for all mopeds with drum brakes)

Lower pressure increases traction? By increasing the size of the contact patch?

See the Second Law of Friction. (We call it traction, but it's the same thing.)(edited)

Re: Very Important (for all mopeds with drum brakes)

> Jeff Adams Wrote:

> -------------------------------------------------------

> Lower pressure increases traction? By increasing the size of the

> contact patch?

>

> See the Second Law of Friction. (We call it traction, but it's the same

> thing.)

It should be obvious that the added patch also increases heat ( due to friction ) .

Heat usually expands stuff , making it more porous and thereby softer .

Exactly why it's recommended to warm tires before doing any trickery , lest you perish . ;)

Re: Very Important (for all mopeds with drum brakes)

Josiah Radebaugh /

When I first read this I was questioning how that'd happen but then I remembered that I had this happen on a project bike ripping through a little dusting of gravel

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