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Next bike for 8yr old (CRF80 or KLX110)

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My 8 year old is out riding his CRF70 and wanted some advice on his next bike. He wanted a KLX 100 but I thought it might be better and last him longer to get a CRF80.

Is the 3 speed KLX more torquey/faster than a 80cc CRF. I rode a 2003 XR 80 and couldn't really tell if it was faster or just seemed faster because of being taller and 5 speed.

Any advise would be helpful . . .

Thanks in advance . . .

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The KLX will probably be about the same speeds as the CRF 80 but if you want a larger bike get the 80. The KLX is actually 1 inch smaller than the CRF 70. The CRF 80 seat height is 28 inches.

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They are pretty much the same all around. However, in the aftermarket area there is much more for the 110.

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Id go with a crf100. If you need smaller wheels for a shorter seat height take the stock ones off and relaced them with a set of crf80 sized wheels in anodized aluminum in the color of your choice for a trick look. With the stock 100 motor youve basically got a modded 80 motor . The 100 is a little more powerful than the 80 but the aftermarket hop up goodies for the 100 are alot more plentiful than for the 80.

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Just went through the same drill. Our solution was to put the 70 wheels on a CRF 100. The result was more power, manual clutch, and a manageable seat height for an 8 year old. But the biggest benefit is that it can be stepped up as he grows (larger wheels/motor work/misc mods. If you end up going this route, I have a few lessons learned that I'd be happy to share.

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Just went through the same drill. Our solution was to put the 70 wheels on a CRF 100. The result was more power, manual clutch, and a manageable seat height for an 8 year old. But the biggest benefit is that it can be stepped up as he grows (larger wheels/motor work/misc mods. If you end up going this route, I have a few lessons learned that I'd be happy to share.

I hadn't even thought of that. He was a bit short for the 80 but could still one leg it. What is invovled in swaping the 100 wheels for the 70? I was planning on selling the 70 so I would have to find a set on E-bay.

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The swap is very straight forward - they bolt right up. Some additional details to consider are:

1) The flange that the sprocket bolts to is narrower on the 70. Therefore to get proper chain alignment it needs to be shimmed out. We solved this problem by sacrificing a spare sprocket and "fabricating" a spacer out of it.

2) The stock gearing on the 100 is 14/50. The addition of the smaller rear wheel (16" to 12") turns that combo into a stump puller in the first three gears. We have dropped to a 14/36 combo and it appears to be about right.

3) The 100 runs a 428 chain versus a 420 on the 70. Need to run a different sprocket accordingly.

4) The 36 tooth rear sprocket for the 100 (428 compatible) is a special order item. The smallest that I was able to find off the shelf was a 42 tooth. We ordered our 36 tooth sprocket from Sprocket Specialists - $47.

All said, it is a very easy swap and for our situation it was the best option.

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My 10 year old rides a xr-80 seat height is good and enough power,plus it is a 5 speed, good bike to learn how to use a clutch

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Hi, my name is Aidan and I am 10. I just bought a 1990 honda xr80 as a first bike has 5 gears like the one you saw.To start to get on the cluch I think your son should get the 80cc the 100cc got a lot of speed and torque. They will stall the second he forgets the cluch

from aidan

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we just switched from the 70 to the 80 at christmas santa was generous. The post by robbie999 in my oppinion is spott on :thumbsup: let him get his confidance the power is so much better I know its only10cc but it seams like 20 or 30. he will have his hands full on mastering the clutch. not just taking off but fanning,r p m, you know really using it . I dont know the weight differance 100/80 but my boy is 8 80#ish and can pick it up and get er going after a get off, he does it several times a day :bonk::thumbsup: lacing wheels ,70 wheels on a 100 come on get him the right size just my .000001 have fun be safe and ride :confused:

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There's one on every thread. :thumbsup: Like you said it's just your opinion - for us the hybrid solution made sense, it's obviously not going to work for everyone. As for having their hands full with the clutch - most kids that have previous riding experience (auto-clutch) pick up the mechanics of the clutch in one or two outings.

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:thumbsup: I read my post foom the other day. I owe an appology to all who saw it. t.t is a place to share promote ,help, educate and encourage other T.Ters. MY post came off with littel of that, ok none :thumbsup: So let me say if something works for your situation that is great. If it saves time and money even better, again sorry I came off like a jerk peace ,

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I just bought my son a new CRF80 last fall, he had never ridden before and got used to the clutch in 15 to 20 minutes. I think the CRF is a lot better bike to learn on than the KLX. I love riding it too, feels like a big bike.

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i went a slightly different route, my 7 year old son was getting beat to death on the crf70 and when he fell with the bike on his legs he was stuck! so i researched around and found a 03 rm/kx 60 that is 27.7" seat height has 8" travel front and back and weighs less than the crf70. he picked up the clutch on first day for starting and stopping in first gear, anyway, i was so impressed by the way he rode the 60, i sold after 2 months and bought a rm 65 on sunday and he loves it. from everyone i talked to, they will last forever with minimum maintenance

john

crf450 mine

03 rm65 7 year old

05 crf50 4 year old

and wife hates the all

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my son has a drz110 and smokes the crf100s he is 10 years old fits him great. plus it has way better suspension than the 100s. plus i get to ride it. that bike will climb almost any hill out there. great bike.

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