XR 70 wheels on a CRF 100?

[CRF100biker]

I saw this in another thread https://www.thumpertalk.com/forum/showthread.php?t=323392 and I liked the way it looked and I was just wondering if the wheels just bolt right in and if not how much modification to the bike has to be done and is it expensive to do the modification?

[socalxr]

That was my buddy's. It bolts in with no mods. The hubs are the same. It make a great klx110 killer.

[CRF100biker]

Thanks socal! I knew you'd be the one to help me out with that. Now I just need to get my 70 from my friend's house to where my 100 is at my other friend's garage.

[rdrdaj]

does any one have a pair they want to sale or want to give a way!!! ??

[JLC2KLX]

I completed the swap ('00 XR 70 wheels onto a '06 CRF 100) this weekend for a very exited 8yr old. ? It turned out to be the perfect set up for us - manual clutch, more power, low seat height, and the ability to step it up as he grows. I was concerned about introducing the manual clutch, but he took to it right away.

As was previously mentioned, the parts transfer over directly. The only difference we noted was in the thickness of the flange that the rear sprocket bolts to - approx 3/16" thicker on the CRF 100, which required us to shim it out to get proper chain alignment. Not sure if it varies with different years or not. Now all that remains is to experiment with the gearing.

[socalxr]

Yeah, the gearing seems to be the only unknown variable. I think Honda should sell them to compete against the 110's.

[CRF100biker]

Oh yeah. Never thought about gearing. I would've been on my bike being like . Thanks for reminding me.

[JLC2KLX]

The stock set up for the 70 is a 36 tooth rear sprocket and 50 on the CRF 100. I picked up a 47 for the XR 70 donor wheel, thinking I would be close to the stock gearing for the 100 - failing to account for dropping from a 16" rear wheel to a 12". ? With the 47 on the rear, it was geared way, way low. I will throw on the 36 and see where we need to adjust from there!

[CRF100biker]

So...uh...anyone know a good gearing combo that will make it so I can have the 70 wheels on my bike and have very close to stock gearing. I like the gearing I have for my trails right now which is mostly mud and pretty steep hills that are muddy and rutty. When I say mud I mean verrrry deep mud everywhere. There's also a small stream about 4 feet wide. If someone comes up with a close to stock gearing combo or one better for the terrain I ride on it would be greatly appreciated! ? Thanks!

[starmoto]

what size is the 70s front rim? Id like to put 2 12s on one for a fun mini-flattracker/motard. thnx

[Mike Montella]

I wanna c a pic of a 100 with 70 rims and tires on it!!!! Sounds interesting>

[socalxr]

Best pic i got for now.