Non ct fatter rear tire

[Evil Mitch]

Ok just a question here
How much work would be involved putting a fatter MT on the back of a rocket?
I know the guys on the M109r are able to put a 250 and a 260 back there on the stock rim instead of the 240 but need to go to a 10" for the 280 and then its swing arm ect ect for the 300
has anyone else here gone fatter without using a darkside tire?
any info appreciated

 

[Evil Mitch]

Also mags/rims after market that will fit without mods to swing arm ect that may house fatter tire pref chrome?

 

[ponters]

a great question...

what are our fatter arse options... both swing arm and non new swing arm options?

pics and links appreciated

 

[Evil Mitch]

Anybody is there nothing available

 

[warp9.9]

Mitch you are limited by the rim size not many wide 16 inch tires out there. I imagine you could get a 260 on it if you had the right rim. 250 definetly. I could probably squeeze one on my 18 inch rim its 8.5 wide I believe. I suppose I should have seen how wide I could go when I had the rimm modified. but I was more interested in a larger variety of 240 available. I almost wnet 17 inch so I could try the 245 Daiblo made for the new ducati but it was not available at the time I did the modification.

 

[Evil Mitch]

Mitch you are limited by the rim size not many wide 16 inch tires out there. I imagine you could get a 260 on it if you had the right rim. 250 definetly. I could probably squeeze one on my 18 inch rim its 8.5 wide I believe. I suppose I should have seen how wide I could go when I had the rimm modified. but I was more interested in a larger variety of 240 available. I almost wnet 17 inch so I could try the 245 Daiblo made for the new ducati but it was not available at the time I did the modification.

Thanks Warp
So could i put a 18 inch x 8.5 on the back without modding anything else on the bike ?
or wider or is 8.5 the max for our swing arm shaft setup?
I dont mind changing size if i can get a fatter arse end without major surgery even if i need to change the front to suit as long as it isnt dangerous for the rocket to do so.

 

[warp9.9]

Yes 8.5 would fit but the only rims you can buy are the BST carbon fiber rims. I am not sure what their width is but they are 18 inch though. Mine is a 18 inch modified OEM rim I had the rings cut off and doner ones spun welded on and then machined. It cost me 750 bucks but I like being able to run different rubber. I tried the conti race attack and it grips like glue but also is a soft compound so mileage suffers. Right no I have a shinko on he only V rated but so far it has held up well. I do not do a lot of burn outs but spend time on the right side of the speedo. Simce I just put her back together I have not run her all the way up. just 162 mph in 4th gear . The shinko tracks well with just dyna beads in her for balancing.

 

[Evil Mitch]

cheers for the info warp much appreciated

think this may be my next mod when funds allow

 

[Trirocket3]

I ran a 250 cobra it only just cleared swingarm on driveshaft side,
on driveshaft tube there is some room to be pinched with a little cut & weld where tyre would touch if you wanted to go bigger still.
You can also shim the gear off the hub & reduce the caliper mounting bracket side by same amount I have done this, with C/F wheels & 6pot brakes/one off bracket, wheel will be off centre to the bike though.

 

[Evil Mitch]

Did you have to do that to get the 250 cobra on or did she just fit in there ?


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