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Author Topic: Rear tire wear  (Read 16200 times)

Offline Motorhobo

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Rear tire wear
« on: April 21, 2014, 09:28:16 AM »
Before I run out and buy a new rear tire I wonder if someone could give an opinion on the condition of this Conti Blitz. It's pretty old and the bike had a sidecar on it for most of the tire's life, which is probably why it's worn in the center region. Plus I do most of my riding on highways for utility not a whole lot on on twisties for pleasure.



I've never been schooled on the ins and outs of MC tire wear -- don't even know what the dimples are for -- I assume they're to help assess how much rubber is left. As replacement I'm looking at a Shinko 712 which is what I have on the front. The front looks pretty new. You'd think I'd remember more about the wheres and whens of my tire purchasing but the time period in which these tires were installed is a blur and preceded the birth of motobrick.com. So if there's some formula or measurement for determining when to replace, I'd appreciate your input.

BTW no car tior available for 130/90 17 and not doing any wheel mods -- nuff said 'bout that.

Thanks -- Van
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1994/1995 K75 ABS Frankenbike: original engine 136k miles, frame from Gary Weaver (RIP), 173k miles -- Current Odometer: 198k miles
1994 K75 since 2013, 82,000 mi (19k mine) w/California Sidecar Friendship II Sidecar & Black Lab 'Miss B' - RIP

Past: 1974 Honda 550/4 (first bike), 1994 K75 (sold), 1995 K75 ABS (parts bike), Sidecar Dog & Best Bud 'Bo' - RIP

Offline Scott_

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Re: Rear tire wear
« Reply #1 on: April 21, 2014, 06:39:15 PM »
On one sidewall there should be a 4 digit mnfgr date code. The 1st 2 digits represent the week of the year(01-52) and the 2nd digits are for the year.
Anything over 5yrs old, I'd seriously consider replacing, but that's just me.
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Offline Motorhobo

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Re: Rear tire wear
« Reply #2 on: April 22, 2014, 07:42:17 AM »
Feb 2004 -- wtf -- embarrassing. Swapped the wheel off a low-miles k75 I sold in 2009.

New tire it is.
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1994/1995 K75 ABS Frankenbike: original engine 136k miles, frame from Gary Weaver (RIP), 173k miles -- Current Odometer: 198k miles
1994 K75 since 2013, 82,000 mi (19k mine) w/California Sidecar Friendship II Sidecar & Black Lab 'Miss B' - RIP

Past: 1974 Honda 550/4 (first bike), 1994 K75 (sold), 1995 K75 ABS (parts bike), Sidecar Dog & Best Bud 'Bo' - RIP

Offline mystic red

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Re: Rear tire wear
« Reply #3 on: April 22, 2014, 12:04:29 PM »
Good call.....
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Offline johnny

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Re: Rear tire wear
« Reply #4 on: April 22, 2014, 12:16:07 PM »
i thinks turkus put some bridgestone radials on his k75 motobrick then rolled out the twisty bovine with confidence... he made it home... musta be some good tiors...

click here to see for yourself...

j o
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Offline Turkus

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Rear tire wear
« Reply #5 on: April 26, 2014, 11:19:21 PM »
Quote from: johnny on April 22, 2014, 12:16:07 PM
i thinks turkus put some bridgestone radials on his k75 motobrick then rolled out the twisty bovine with confidence... he made it home... musta be some good tiors...

click here to see for yourself...

them Stonebridge T30s transformed the Brickus Turkus into a completely new bike  :2thumbup:
it was originally shod with some old, dried-out, bias-ply Shinkos that were a POS - it was like riding old roller skates with steel wheels.

Shinkos are low end cheap Korean tiors....they only belong on three-wheeled bicycles   :falldown:
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Offline TimTyler

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Re: Rear tire wear
« Reply #6 on: April 27, 2014, 01:44:29 AM »
After watching Turkus action on the Twistie Bovine I'll be upgrading to the T30's as soon as I can burn through these Spitfire II's.
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Offline Snowy

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Re: Rear tire wear
« Reply #7 on: April 27, 2014, 03:08:02 AM »
For my usage, grip and wet weather grip is more important than tyre life. I've run Roadsmarts before on the K1100RS which were good but my current choice is PR3's which are a great confidence boosting tyre for the twisties and great in the wet. I will only get 5K miles from the rear but I'll take that hit just to get the grip.
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Offline Motorhobo

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Re: Rear tire wear
« Reply #8 on: April 27, 2014, 06:09:29 AM »
The only twistie here in the Eastern Shore of the Cheasapeake Bay is the on-ramp to the freeway and the only hill is the county landfill. I went with the Shinko 712 rear to match what I have on the front -- better than a 10 year old Conti. I'll run this tire for a couple thousand here and save up for some better ones and put these on the hack assuming I ever get that back up and running.

Shinkos 712s actually get pretty good reviews. Wouldn't be my first choice but for my location and riding style  it will do for now.

Btw I have an extra sidecar axle  -- actually a 750 lb trailer torsion axle -- recommended unit for a sidecar frame. Had to buy the pair cause they don't sell singles. $125 plus shipping. Spread the word -- if interested PM me.
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1994/1995 K75 ABS Frankenbike: original engine 136k miles, frame from Gary Weaver (RIP), 173k miles -- Current Odometer: 198k miles
1994 K75 since 2013, 82,000 mi (19k mine) w/California Sidecar Friendship II Sidecar & Black Lab 'Miss B' - RIP

Past: 1974 Honda 550/4 (first bike), 1994 K75 (sold), 1995 K75 ABS (parts bike), Sidecar Dog & Best Bud 'Bo' - RIP

Offline johnny

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Re: Rear tire wear
« Reply #9 on: April 27, 2014, 10:33:23 AM »
its my opinion if you caints wear out a set of bias plys in the forever twistys then you are not qualified to ride a motobrick on radials...

j o
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Offline Motorhobo

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Re: Rear tire wear
« Reply #10 on: April 27, 2014, 11:50:14 AM »
Quote from: johnny on April 27, 2014, 10:33:23 AM
its my opinion if you caints wear out a set of bias plys in the forever twistys then you are not qualified to ride a motobrick on radials...

j o

A point well taken....I'll lean harder into the on-off ramps.

Would love to have everything I want...the best tires...the twistiest twistiest...gotta pinch some pennies on the rear tire so I can afford a new Arai cause my current one is about as old as that ten year old Conti. I'd rather penny pinch on the rear tire than the helmet.

In the meantime, consider me unqualified...I can,live with that  :neener:

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1994/1995 K75 ABS Frankenbike: original engine 136k miles, frame from Gary Weaver (RIP), 173k miles -- Current Odometer: 198k miles
1994 K75 since 2013, 82,000 mi (19k mine) w/California Sidecar Friendship II Sidecar & Black Lab 'Miss B' - RIP

Past: 1974 Honda 550/4 (first bike), 1994 K75 (sold), 1995 K75 ABS (parts bike), Sidecar Dog & Best Bud 'Bo' - RIP

Offline johnny

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Re: Rear tire wear
« Reply #11 on: April 27, 2014, 12:23:37 PM »
rear tior wear...



j o
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Offline johnny

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Re: Rear tire wear
« Reply #12 on: April 29, 2014, 12:44:40 PM »


j o
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Offline K75RT Keith

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Re: Rear tire wear
« Reply #13 on: April 30, 2014, 09:38:00 AM »
Johnny,  Why'd you only wear out the left side of that there tior?  You gots another few thousand in it if you just turn right more. :hehehe
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Offline Motorhobo

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Re: Rear tire wear
« Reply #14 on: April 30, 2014, 09:41:57 AM »
That's the wear pattern of someone who enters a roundabout but can't decide which exit to take.
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1994/1995 K75 ABS Frankenbike: original engine 136k miles, frame from Gary Weaver (RIP), 173k miles -- Current Odometer: 198k miles
1994 K75 since 2013, 82,000 mi (19k mine) w/California Sidecar Friendship II Sidecar & Black Lab 'Miss B' - RIP

Past: 1974 Honda 550/4 (first bike), 1994 K75 (sold), 1995 K75 ABS (parts bike), Sidecar Dog & Best Bud 'Bo' - RIP

Offline johnny

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Re: Rear tire wear
« Reply #15 on: April 30, 2014, 06:23:31 PM »
rear tior wear...



j o
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Offline johnny

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Re: Rear tire wear
« Reply #16 on: May 01, 2014, 02:52:43 AM »
rear tior wear...



j o
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Offline johnny

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Re: Rear tire wear
« Reply #17 on: May 01, 2014, 11:38:07 PM »
rear tior wear...



j o
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Offline johnny

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Re: Rear tire wear
« Reply #18 on: May 02, 2014, 07:13:52 PM »


j o
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  • :johnny i parks my 96 eleven hundert rs motobrick in dodge county cheezconsin  :johnny

Offline johnny

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Re: Rear tire wear
« Reply #19 on: May 09, 2014, 07:57:45 PM »
how abouts some rear wheel wear...





j o
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Offline Motorhobo

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Re: Rear tior wear
« Reply #20 on: May 09, 2014, 08:41:21 PM »
So what did you do to your rim there, Johnny, lean too hard into the curb?
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1994/1995 K75 ABS Frankenbike: original engine 136k miles, frame from Gary Weaver (RIP), 173k miles -- Current Odometer: 198k miles
1994 K75 since 2013, 82,000 mi (19k mine) w/California Sidecar Friendship II Sidecar & Black Lab 'Miss B' - RIP

Past: 1974 Honda 550/4 (first bike), 1994 K75 (sold), 1995 K75 ABS (parts bike), Sidecar Dog & Best Bud 'Bo' - RIP

Offline johnny

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Re: Rear tior wear
« Reply #21 on: May 12, 2014, 10:58:44 AM »
i was overtaking poach when he slipped an anvil onto the track... i missed it with my front butts hit it with my rear... i completed the racing maneuver on my way to winning that event...



j o
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Offline K75RT Keith

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Re: Rear tire wear
« Reply #22 on: May 27, 2014, 08:34:12 AM »
Just found and ordered from Motorcycle Superstore  a mis-Price on an  Avon AM26 Roadrider REAR Tire 140/70v-17  $11.87 Shipping included.  Yes, I realize the height is a 70 not an 80.  So the rear will sit a little lower and the speedo will be a few more mph off.  That's what my GPS is for.
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