Is it possible to fit a 160 tire on a fs 650? Standatd is a 150 and from what i can see the only issue would be clearance on the chain.......
160 tire on fs 650
- Thread starter bitsabikes
- Start date
hey. read up on this too. from what i understand, apparently the consensus is that on the 4.25 rim the 150 is the best option, (clearance and performance). on the 5.00 rim the 160 is the best size for the rim, but the 150 turns in better. i went with a pilot road 3 150/60 on my 4.25 behr rims.
160 tire on a 4.25 rim
^^that isn't the thread I was looking for, but it may help.
If you want to run a 160 on a 4-1/4" rim, read up on the specs specifically the width as they vary wildly.
Fo instance, a pilot power 160 is quite narrow, as is a heidenau K73 160. The Heidi is a bias ply rain tire. I believe both come in at around 160mm on a 5" rim.
Other tires can be as wide as 167mm, and a Dunlop Q3 measured a whopping 170mm. I had serious chain/tire interference with that tire. I shaved about 1/4 inch off the sides with a block plane using dish soap as lube.
Keep in mind, as you break in a tire, it will "grow" and become wider as the rubber creeps to the edge.
My 05 FS650 with 5" behr rear rim had pilot powers on it when I bought it and the chain never even nicked the tire at all.
Almost all the other tires I've tried, I had to have a chain block to keep it from rubbing.
##check for tire silencer clearance as well when going to a wider tire. Rubbing is ok, but hitting it is not.
See here for chain block, and silencer tire interference:
<2008 Berg servicing, mods, pros and cons, issues, and ways to resolve them
Back on topic, herrs another thread on the subject:
160 tire fitament...4.25" or 5"
^^that isn't the thread I was looking for, but it may help.
If you want to run a 160 on a 4-1/4" rim, read up on the specs specifically the width as they vary wildly.
Fo instance, a pilot power 160 is quite narrow, as is a heidenau K73 160. The Heidi is a bias ply rain tire. I believe both come in at around 160mm on a 5" rim.
Other tires can be as wide as 167mm, and a Dunlop Q3 measured a whopping 170mm. I had serious chain/tire interference with that tire. I shaved about 1/4 inch off the sides with a block plane using dish soap as lube.
Keep in mind, as you break in a tire, it will "grow" and become wider as the rubber creeps to the edge.
My 05 FS650 with 5" behr rear rim had pilot powers on it when I bought it and the chain never even nicked the tire at all.
Almost all the other tires I've tried, I had to have a chain block to keep it from rubbing.
##check for tire silencer clearance as well when going to a wider tire. Rubbing is ok, but hitting it is not.
See here for chain block, and silencer tire interference:
<2008 Berg servicing, mods, pros and cons, issues, and ways to resolve them
Back on topic, herrs another thread on the subject:
160 tire fitament...4.25" or 5"
Thanks guys, I have a 150 pp on the rear,will stick with that at the moment.
So much torque such small contact area!!!!!!!! mopedsmile:
So much torque such small contact area!!!!!!!! mopedsmile:
I bought the SM kit from Warp9 for my 05 FE550 and run a 160 on the rear. The chain does rub the tire a bit, but it's not really noticeable when riding. You can see the intermittent rub marks on the tire, however, but no chunks missing. The chain is maybe 5mm from the edge of the tire. What is needed is a chain block - I am planning to fabricate one from Delrin. I'll post up a pic when I do it - prolly this summer sometime. If there is a lot of interest, I may be able to make a few for sale at a reasonable price.
how wide is Your rear rim?
Using DiD VT2 chain may also help a bit.
There is no need to fabricate it - You may buy one from KTM
58307068300 support f. chain guide 03
58604067000 chain guide inside 05
58604068000 chain guide outside 05
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My Warp9 SM rear wheel is 4.25. Thanks for the lead on the KTM chain block - hopefully this mounts close to where the rear tire crosses the swingarm. Yes, using a non-o-ring/x-ring chain helps as well (not as wide).
what tire on this 4.25 rim? im asking about manufacturer.
we are mounting it on the other side naturally
Thank you for the pic - looks like I will have to drill/tap a hole in the swimgarm to mount the chain block.
My current rear tire is a Bridgestone Batlax BT56 - I bought it slightly used for cheap and it works. I think it might be a little old as well. I'm also running an x-ring chain, so may switch over to a non-o-ring chain for a couple more mm clearance. My bike is mostly dirt, but I do supermoto occasionally.
My current rear tire is a Bridgestone Batlax BT56 - I bought it slightly used for cheap and it works. I think it might be a little old as well. I'm also running an x-ring chain, so may switch over to a non-o-ring chain for a couple more mm clearance. My bike is mostly dirt, but I do supermoto occasionally.
Nope, You have stock one.
If Your rims are correctly centered - same spokes angles as stock ones, chain should not rub with 4.25" rim.
My wheels were built by Warp9 specifically for supermoto - I don't know if that means the rear wheel has the sprocket biased slightly to one side or not for clearance (?) The chain has nominally about 5mm clearance to the tire - for sure I will need a chain block as the chain does rub. That is great news that the KTM chain block uses the stock chain slider mounting hole. I thought it would need 2 mounting holes. I think I will buy it anyway and modify things as necessary.
Specialist who service my wheels, always asks for a bike (or part of it
), to try them on it or old wheels as an example/pattern to be 100% sure that everything will be the same.two holes in chain block, as far as I know are for adjusting purposes.
I was thinking about this hole in the swingarm:
Thanks for the pic - I forgot about that hole in the swingarm! BTW - what size sprockets (front/rear) are you running for the street?
Very nice looking bike! Mine is a little beat up from offroading...
Very nice looking bike! Mine is a little beat up from offroading...
Heh... that is not my bike
I had stock 14-40 setup, now I decided to go for 15 front (renthal, 45 rear (oem KTM) and did vt2 chain.
My bike is still in parts...
You might have to remove that chain guide to install or remove the wheel if you installed it back there, plus it might not really help much being so close to the sprocket.
Keep in mind, the chain rubs the tire on the bottom as well. An FE lower chainguard is needed. I believe a KTM 625 sxc may use the same type of lower guard.
I wrote about and there are pics of my homemade chain block and the lower chainblock and part numbers here:
<2008 Berg servicing, mods, pros and cons, issues, and ways to resolve them
As far as spacing, all KTM and berg rear rims (dirt included) are offset a little bit to make more room for the tire. Offset meaning the rim is not centered in the swingarm.
Keep in mind, the chain rubs the tire on the bottom as well. An FE lower chainguard is needed. I believe a KTM 625 sxc may use the same type of lower guard.
I wrote about and there are pics of my homemade chain block and the lower chainblock and part numbers here:
<2008 Berg servicing, mods, pros and cons, issues, and ways to resolve them
As far as spacing, all KTM and berg rear rims (dirt included) are offset a little bit to make more room for the tire. Offset meaning the rim is not centered in the swingarm.
you need a rear rim with shockabsorber at the chainwheel that makes the chainwheel sit tighter to the swingarm that will make the cleerance
If you have a 5in rear I found a Goldspeed ultra street 160 went well.. Plus its like bubblegum and you wont regret it.
GOLDSPEED ULTRA STREET!
GOLDSPEED ULTRA STREET!
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