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 Post subject: Kids bike question!
PostPosted: Sat Apr 14, 2018 9:46 pm 
Retro Guru
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Joined: Thu May 06, 2010 8:43 pm
Posts: 2217
Location: above my station
I bought a Specialized Hotrock 12" kids bike a while back in anticipation of my daughter graduating to it from the balance bike. This model comes with a coaster brake, but the previous owner removed the hub internals for the brake and installed a second brake and lever instead. Now that my 4-year-old daughter's started using this bike, one thing which is causing her a problem is that it seems to take an awful lot of rotation of the cranks before the gear actually bites and begins to propel the bike forward. I have absolutely no experience at all of singlespeed bikes or kids bikes - is there anything I can do to improve that?

Cheers 8)

 Post subject: Re:
PostPosted: Sat Apr 14, 2018 11:31 pm 
Gold Trader
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Joined: Fri Jan 23, 2009 2:30 pm
Posts: 14353
Location: Surrey
I can't help with the hub issue, but I will say that whilst the coaster brake seemed a good idea at the time (I bought the same bike new for my eldest and now my youngest is using it), it did make graduating to a bike with normal brakes more of a challenge.

If you figure it out, let me know as I'd like to do the same and fit a normal rear brake.

I'd assumed (without any research) that simply removing the arm that connects the hub to the frame would disconnect the coaster brake, guess I'm wrong. Never had a coaster brake or fettled one.

 Post subject: Re: Kids bike question!
PostPosted: Mon Apr 16, 2018 9:06 pm 
Old School Hero

Joined: Wed Nov 12, 2008 10:52 pm
Posts: 207
Location: manchester uk
Never stripped one but rode a couple and the rear pedal back function basically contracts and locks the wheel to the spindle then expands to re engage the wheel when you pedal forwards. there is going to be a bit of slip between disengaging and engaging. Chances are the removal of the innards has given more room for movement. The only real option to remove the coaster feel is a new wheel with a standard ratcheting cog

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