Go Back  Bike Forums > Bike Forums > Bicycle Mechanics
Reload this Page >

Kids 16" wheel balancing

Notices
Bicycle Mechanics Broken bottom bracket? Tacoed wheel? If you're having problems with your bicycle, or just need help fixing a flat, drop in here for the latest on bicycle mechanics & bicycle maintenance.

Kids 16" wheel balancing

Old 05-26-20, 01:47 AM
  #1  
Too Old
Junior Member
Thread Starter
 
Join Date: May 2020
Posts: 11
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 5 Post(s)
Liked 1 Time in 1 Post
Kids 16" wheel balancing

Hi
my kids new bike arrived and it almost ended up in a huge crash for him. The bike going downhill just started wobbling uncontrollable. Luckily he slammed the back break on and avoided a crash.

​​​​​he was doing about 12mph and wasn't messing about.

The bike is new and has spoke reflectors so am wondering if there is a way to try and balance the wheels on his bike.

Thanks
Too Old is offline  
Old 05-26-20, 02:21 AM
  #2  
Trevtassie
Senior Member
 
Join Date: Jun 2015
Location: Down Under
Posts: 1,604

Bikes: A steel framed 26" off road tourer from a manufacturer who thinks they are cool. Giant Anthem. Trek 720 Multiroad pub bike. 10 kids bikes all under 20". Assorted waifs and unfinished projects.

Mentioned: 9 Post(s)
Tagged: 0 Thread(s)
Quoted: 529 Post(s)
Liked 318 Times in 164 Posts
Originally Posted by Too Old View Post
Hi
my kids new bike arrived and it almost ended up in a huge crash for him. The bike going downhill just started wobbling uncontrollable. Luckily he slammed the back break on and avoided a crash.

​​​​​he was doing about 12mph and wasn't messing about.

The bike is new and has spoke reflectors so am wondering if there is a way to try and balance the wheels on his bike.

Thanks
Not the wheels being out of balance, may a loose nut behind the bars might be the problem?

Most kids bikes can cope with speeds higher than 12mph. I've done 45mph on a 12" Giant Animator. I weigh 210lbs. It had reflectors on the spokes. I worked out the wheels were doing something like 650rpm. In my case there was definitely a loose nut behind the bars, but there was no wobbling. www.facebook.com/groups/1683288705275035/photos/

Last edited by Trevtassie; 05-26-20 at 02:25 AM.
Trevtassie is offline  
Likes For Trevtassie:
Old 05-26-20, 02:22 AM
  #3  
cpach
Senior Member
 
Join Date: Oct 2009
Location: Mt Shasta, CA, USA
Posts: 1,696

Bikes: Too many. Cannondale SuperSix, Trek Remedy 8, Trek Crossrip+ get the most ride time.

Mentioned: 18 Post(s)
Tagged: 0 Thread(s)
Quoted: 375 Post(s)
Liked 138 Times in 114 Posts
There is a zero percent chance that unbalanced wheels caused this. Maybe this is a joke with the wheel balancing thread going on?

Did you order this bike online? Bikes require skilled assembly to work properly. Is there any play in the headset or the wheels?
cpach is offline  
Likes For cpach:
Old 05-26-20, 03:24 AM
  #4  
Too Old
Junior Member
Thread Starter
 
Join Date: May 2020
Posts: 11
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 5 Post(s)
Liked 1 Time in 1 Post
Halford Carrera cosmos they built it. Wasn't cheap for a kids 16" wheel bike. Very light weight so it's his first proper bike.

it was a definite wobble from the front end and only when coasting downhill.
I will give it a going over to make sure everything is tight.
Too Old is offline  
Old 05-26-20, 04:02 AM
  #5  
JoeTBM 
Droid on a mission
 
JoeTBM's Avatar
 
Join Date: May 2018
Location: Palm Coast, FL
Posts: 423

Bikes: Diamondback Wildwood Classic

Mentioned: 4 Post(s)
Tagged: 0 Thread(s)
Quoted: 117 Post(s)
Liked 39 Times in 33 Posts
Check the seating of the front tire on the rim (deflate and re-inflate if needed) and that the axle is properly seated into the fork dropouts.
__________________
JoeTBM (The Bike Man) - I'm a black & white type of guy, the only gray in my life is the hair on my head
www.TheBikeMenOfFlaglerCounty.com




JoeTBM is offline  
Likes For JoeTBM:
Old 05-26-20, 04:43 AM
  #6  
Too Old
Junior Member
Thread Starter
 
Join Date: May 2020
Posts: 11
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 5 Post(s)
Liked 1 Time in 1 Post
The front tyre wasn't in quite right just slightly out on one side. Hopefully issue solved. Removed the reflectors as well as he is never going to be using it at night since he is 5.

Everything else all tight and as I would have expected.

The bike builders are Halfords are working as fast as they can as it appears everyone wants a bike right now.
Too Old is offline  
Old 05-26-20, 07:46 AM
  #7  
HillRider
Senior Member
 
Join Date: Aug 2005
Location: Pittsburgh, PA
Posts: 32,184

Bikes: '''96 Litespeed Catalyst, '05 Litespeed Firenze, '06 Litespeed Tuscany, '12 Surly Pacer, All are 3x8,9 or 10. It is hilly around here!

Mentioned: 35 Post(s)
Tagged: 0 Thread(s)
Quoted: 1410 Post(s)
Likes: 0
Liked 239 Times in 190 Posts
I would check every bearing on that bike, the hubs and headset particularly. Also, as noted be sure the hubs are seated completely and evenly in the dropouts. You already found a tire not seated properly. Halford is a big general retailer, not just a specialty bike shop, and their bike assemblers are not given the time or incentive to thoroughly check every bike they assemble, particularly a child's bike. Your's wasn't cheap for a child's bike but, in the spectrum, of bikes it was indeed low cost and Halford can't afford to put much time into it.

Finally, it's entirely possible your son caused the wobble himself. If he was holding the bars in a death grip with his arms rigid and elbows locked, that can induce a wobble in any bike.
HillRider is offline  
Likes For HillRider:
Old 05-26-20, 08:33 AM
  #8  
Bill Kapaun
Really Old Senior Member
 
Bill Kapaun's Avatar
 
Join Date: Feb 2007
Location: Mid Willamette Valley, Orygun
Posts: 11,740

Bikes: 87 RockHopper,2008 Specialized Globe. Both upgraded to 9 speeds.

Mentioned: 12 Post(s)
Tagged: 0 Thread(s)
Quoted: 1011 Post(s)
Liked 229 Times in 180 Posts
Originally Posted by HillRider View Post
...... it's entirely possible your son caused the wobble himself. If he was holding the bars in a death grip with his arms rigid and elbows locked, that can induce a wobble in any bike.
IF the bars are to close, it's kind of like driving a bus with the steering wheel between the knees.
Maybe you have to "stretch him out" a bit and make him reach? Arms almost fully extended making kind of a tripod.
I recently went to a smaller frame Rockhopper and experienced similar using the same bars etc. Very twitchy.

Last edited by Bill Kapaun; 05-26-20 at 08:40 AM.
Bill Kapaun is offline  
Likes For Bill Kapaun:
Old 05-26-20, 08:41 AM
  #9  
Crankycrank
Senior Member
 
Join Date: Jan 2009
Location: San Diego, CA
Posts: 1,677
Mentioned: 3 Post(s)
Tagged: 0 Thread(s)
Quoted: 275 Post(s)
Liked 82 Times in 66 Posts
Originally Posted by Too Old View Post
Halford Carrera cosmos they built it. .
This may be the problem. The closest Halfords to me is about 6k miles away but having visited other UK forums, Halfords has developed a hit or miss reputation with their new bike prep and mechanic service.
Crankycrank is offline  
Likes For Crankycrank:
Old 05-26-20, 08:42 AM
  #10  
Too Old
Junior Member
Thread Starter
 
Join Date: May 2020
Posts: 11
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 5 Post(s)
Liked 1 Time in 1 Post
Might have a look for wider bars
Too Old is offline  
Old 05-26-20, 09:06 AM
  #11  
Iride01
Senior Member
 
Iride01's Avatar
 
Join Date: Jul 2017
Location: Mississippi
Posts: 3,865

Bikes: '20 Tarmac Disc Comp '91 Schwinn Paramount '78 Raleigh Competition GS

Mentioned: 21 Post(s)
Tagged: 0 Thread(s)
Quoted: 1454 Post(s)
Liked 392 Times in 302 Posts
Wider bars won't solve the issue. Have you determined if there is any side to side play in the wheels that might indicate loose or missing bearing in the hub? Possibly the headset is loose too. Very unlikely, but the spokes might be too loose.

I didn't do such a great job on my first rides both when I started with training wheels and later when the training wheels were removed. Crashes, scraped elbows and kneses were the norm.

In my case the bike was in good shape. It was just the kid, me, on the bike not doing the right things at the right moment.
Iride01 is offline  
Likes For Iride01:
Old 05-26-20, 09:43 AM
  #12  
Russ Roth
Senior Member
 
Join Date: Dec 2019
Location: South Shore of Long Island
Posts: 819

Bikes: 2010 Carrera Volans, 2015 C-Dale Trail 2sl, 2017 Raleigh Rush Hour, 2017 Blue Proseccio, 1992 Giant Perigee, 80s Gitane Rallye Tandem

Mentioned: 4 Post(s)
Tagged: 0 Thread(s)
Quoted: 299 Post(s)
Liked 203 Times in 153 Posts
I would look for the stem being straight, if its slightly out of alignment it can easily cause a wobble for a kid while an adult will easily compensate for it. Tight the stem bolt either way, check for play in the headset and see if the wheels can be wiggled side to side. Another one is if the wheel is round, spin it while looking at the side and see if it bounces up and down, this isn't a balance issue but the bike should be taken right back and made round.
Russ Roth is offline  
Likes For Russ Roth:

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off


Thread Tools
Search this Thread

Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service - Do Not Sell My Personal Information

Copyright 2018 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.