Hub identification.

[firko]

Can anyone identify this wheel hub that I got with my Shell 750 Yamaha? The YZ Yamaha conical backing plate fits right up as if it's meant to be there so I'm assuming that it's Yamaha but the overall casting and spoke flange are different to the normal Yamaha conical hub as shown in the below comparo. There is no Yamaha logo in the casting interior, instead the words Umezawa, Made in Japan and CB -18. As you can see the hub is  very Yamaha-ish but it's not something I'm familiar with.
                                                                         
                                                                         
                                                                         
                                                                         

[firko]

More hub photos. Interior shots. TOP: MX250 Yamaha hub....BOTTOM: The mystery hub.

                                                             
                                                             

                         Exterior shots TOP MX250......Bottom Mystery hub.
                                                             
                                                             
                       

[firko]

BUMP. It's driving me batty not knowing.

[Davey Crocket]

I would say that it was made especially for that bike, std hub maybe not strong enough?

[Iain Cameron]

With the cut outs on the out side non drum side it looks like a speedo drive was intended to be used . Iain

[firko]

 

I would say that it was made especially for that bike, std hub maybe not strong enough?

Very unlikely John, the Shell uses Barnes spool hubs front and rear. Because it's a mile bike it doesn't use a front brake at all so this wheel is one of the left over bibs and bobs Linda the seller threw in with the bike including a Triumph Bonneville twin leader with an Akront mudcatcher that I'll probably use for dirt track. I'm hoping to use the mystery hub on my 'secret project'  Fasttrack framed TM250 short tracker so I's like to know if it's pre 75 legal, being a stickler for eligibility correctness and all . Photos of that project soon as well.

Below, the brand new Barnes wheels that came with the bike. They have Buchanan stainless spokes and Borrani rims. I received the near perfect originals as well.
                                                                

[crs-and-rms]

nice looking wheels mark

[Andrew L]

The spokes on the non brake side which are on the outside  look like they are laced on the wrong side (if that makes sense) and as Ian said it looks like it had a speedo drive originally, are you sure the its CB-18-101 and not CB-13-101 looks like a 3 in the zoomed in photo not much help I know.cheers Andrew

[facthunt]

Harley and Hodaka

[Andrew L]

Hodaka good call http://www.ebay.com/itm/1976-Hodaka-100-Dirt-Squirt-Front-Rim-Wheel-/261138151591?pt=Motorcycles_Parts_Accessories&hash=item3ccd0bf8a7&vxp=mtr

[firko]

This is the best thing about this forum, in just about every case someone will know what you need to know . Thanks boys, Hodaka it is by the look of the one on eBay. Mine's been laced with a 19" rim so its going on the front of my TM250 flat tracker.......and I can sleep well knowing it's legally pre 75 .