Jump to content
Sign in to follow this  
c0al67

Rim direction

Recommended Posts

c0al67
Shop mounted the front wheel backwards. Before i go back, is it a big deal if the rim is flipped the "wrong" direction? not sure it would matter on the front so long as the tread is rotating the correct direction

Share this post


Link to post
Share on other sites
booboobusfz07
As long as your tire is going the right way I don't see it being an issue. I'm no racer or bike mechanic take it with some salt.
  • Like 1

Share this post


Link to post
Share on other sites
c0al67
I'm just gonna run it back to be safe, since idk if the rotors will line up properly and i'm worried the rim is probably designed to go one direction

Share this post


Link to post
Share on other sites
c0al67
I might have chanced it but I'm going to the track this weekend and I don't want a rim failure braking at 125mph lol

Share this post


Link to post
Share on other sites
Guest Ralph
I don't know if it applies to bike wheels but do know
that if you mount the external spoked type flywheels
on old stationary engines the wrong way they are
likely to fail. the spokes are supposed to lean into the
torque so they are in compression but if this was so on
a bike the spokes would point opposite ways fount rear.
 
I had the front off mine a few days back and think
the spacers are the same did not measure them but
did not notice a difference

Share this post


Link to post
Share on other sites
rick
Do the wheel spacers insert exactly the same into the wheels? Frequently, that answer is no. Even if you get the spacers in the right place, and the brake pads in a 4 piston caliper can compensate, the wheel will not be centered
 
You will also have to re-bed in your brake pads as they are now on different rotors
 
If Yamaha went to the trouble of putting arrows on the wheel to determine rotation direction, why risk your potential safety with someone else's careless mistake. That the shop paid no attention makes it careless imo.
  • Like 2

Share this post


Link to post
Share on other sites
Beemer
I have to ask if it made no difference then why would the smart folks at Yamaha put a direction indicator on it? To look silly?
  • Like 1

Share this post


Link to post
Share on other sites
sorkyah
There are direction indicators pn the tyres... i didnt see any on the wheel itself
where are they?

Share this post


Link to post
Share on other sites
rick
There are direction indicators pn the tyres... i didnt see any on the wheel itself where are they?
haven't looked myself, but the shop manual specifies rotation direction - there's a letter and and arrow somewhere on the wheel. My Aprilia's arrow is on the hub. 

Share this post


Link to post
Share on other sites
sorkyah
There are direction indicators pn the tyres... i didnt see any on the wheel itself where are they?
haven't looked myself, but the shop manual specifies rotation direction - there's a letter and and arrow somewhere on the wheel. My Aprilia's arrow is on the hub. 
Well.... hell hopefully the shop that did my tyre... did it correctly...
im headed out to see pgeldz

Share this post


Link to post
Share on other sites
rick
Both wheels have a slightly different look from side to side. They should match.
 
I've mounted a tire or 2 backwards in the over 4 decades of doing them for myself and friends, inspite of always trying to get it right. Doh! Really sucks doing over. At least the wheel has never been installed before finding the brain dead mistake.

Share this post


Link to post
Share on other sites
gregjet
The theory with tyre direction is that the belts tighten under one direction and loosen under the opposite direction making the carcass unstable. Not sure that still applies with radial tyres but I think it does ( never seen anything to the contrary).
In the small classes we often would use front tyres on the back and reverse the direction of rotation ( the front main force at the tread is backwards from braking and the rear forwards from power) as it makes it easier to get quality tyres in the sizes we use.
 
  • Like 1

Share this post


Link to post
Share on other sites
twf
Reason wheel is directional is bearings. Left and right bearing are not same distance from center of the wheel.

Share this post


Link to post
Share on other sites
c0al67
Reason wheel is directional is bearings. Left and right bearing are not same distance from center of the wheel.
I figured there was a difference somewhere in there so i took it back and had it changed just to be safe, didn't even try to mount it up. 

Share this post


Link to post
Share on other sites
gregjet
"Left and right bearing are not same distance from center of the wheel."
Now there is a good point.
 
 

Share this post


Link to post
Share on other sites
rick
If that's the case, that would sure do it. The wheel would mount up, but the calipers wouldn't mate to the rotors

Share this post


Link to post
Share on other sites
twf
It is small difference so wheel can actually work either way. When I change wheel I push pads in every time. When they pumped they will align with rotor.
If you would install bearings in wrong order wheel would be centered backwards :)

Share this post


Link to post
Share on other sites
rick
My Aprilia's front wheel won't go in backwards w/o binding up and the calipers rubbing the rotor

Share this post


Link to post
Share on other sites
twf
It is Italian bike, if it goes in same spot every time in right direction it is miracle :)

Share this post


Link to post
Share on other sites
rick
It is Italian bike, if it goes in same spot every time in right direction it is miracle :)
Yeah, yeah, lol. Pass the pasta please.  
It has its quirks, but it's not a Ducwaddy or goose. At 14 years old, it's been far more reliable than any of my 3 BMWs (my K11 was always coughing up something). Good thing too cause some parts have become unobtanium. 

Share this post


Link to post
Share on other sites
twf
I had my share of Italy :)
Here is one nobody here probably seen or heard for.
 
bianchi.jpg
 
Here is latest Italian, had to combine two to get one :)
 
project3.jpg
  • Like 1

Share this post


Link to post
Share on other sites
twf
How about German, not bmw. That is my son on it, he is 35 now.
 
robi.jpg

Share this post


Link to post
Share on other sites
rowdy
I had my share of Italy :) Here is one nobody here probably seen or heard for.
 
bianchi.jpg
 
 
 

Wow that looks like a real collectors treasure! Bianchi still makes some fine bicycles.  Our team might be getting these next year.
 
 

Share this post


Link to post
Share on other sites
rick
I had my share of Italy :) Here is one nobody here probably seen or heard for.
 
bianchi.jpg
 
Here is latest Italian, had to combine two to get one :)
 
project3.jpg
Hmm, started out life as a 2002-ish Mille? 
The gloves my lab supplies are the color of that Bianchi bicycle, lol. Not the prettiest of colors, but classic Bianchi for sure.

Share this post


Link to post
Share on other sites
rowdy
The gloves my lab supplies are the color of that Bianchi bicycle, lol. Not the prettiest of colors, but classic Bianchi for sure.
Not my favorite color either, but if it's a Bianchi bicycle, it needs to be that color. ;) 
 

Share this post


Link to post
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Guest
Reply to this topic...

×   Pasted as rich text.   Restore formatting

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

Sign in to follow this  


×

Important Information

By using this site, you agree to our Terms of Use.