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Discussion Starter · #1 ·
And so it's time for new rear rubber. I know that I have desecrated my “sport bike”, rather than swapping it for a different factory built machine more suited to my new normal. The long road has been...let’s just say, long.

My CBR got somewhat modified to accommodate my limited range of motion... the clip-ons went bye-bye and got replaced with the handlebars of a CB300F of the same year, for a more upright seating position. The seat pan gained adjustability in the front to keep me from sliding forward, anded a couple of inches of seat height. The foot pegs were lowered and swapped with wider dual-sport type, to help keep my left leg from taking unexpected departures. And the tires... the tires were changed to Shinko 705 series to assist me navigate my 3-1/2 mile long dirt/gravel steep driveway.

Since the 705s do not come in the factory size, we installed the closest size possible: 120/70R17 front, and 140/80-17 on the rear. Shinko also makes this rear tire in size 150/70-17.

I mostly ride on twisty mountain roads and hardly ever see more than 70mph on my speedo, and I never do highways that have speed limits beyond 55mph.

And so the question is: Do I replace that rear tire with the same size 140/80-17, or do I try out the lower profile 150/70-17 tire??? And yes, there is clearance for the 150 width.

Your comments and humorous opinions are welcome and greatly appreciated!

🤗

PS: It’s winter up here. So the wind screen and hand mufs are a necessity at my age, this time of the year! 🤣

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CBR300X
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Discussion Starter · #7 ·
I wanna thank y’all for your help. Since I already know what it feels like to run the higher profile tire, and the main purpose of running these “dual sport” tires is to be able to get to and from the pavement (and to take advantage of the short cuts on the many gravel roads up here) I have chosen to go with the lower profile tires to learn what they feel like.

I am just hoping to make the bike feel a tad different to freshen up our love affair 🤣
 

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I wanna thank y’all for your help. Since I already know what it feels like to run the higher profile tire, and the main purpose of running these “dual sport” tires is to be able to get to and from the pavement (and to take advantage of the short cuts on the many gravel roads up here) I have chosen to go with the lower profile tires to learn what they feel like.

I am just hoping to make the bike feel a tad different to freshen up our love affair 🤣
Look at Dunlop Mutant 150/60/17. Correct size for the bike and are good tyres on poor roads as well as high performance. I've just fitted a pair to my CB300R.
 

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Discussion Starter · #9 ·
Look at Dunlop Mutant 150/60/17. Correct size for the bike and are good tyres on poor roads as well as high performance. I've just fitted a pair to my CB300R.
Hello there Gromit, I will most definitely try the Mutants next, when it is time to get a complete new set of tires. This time around I only needed to replace the rear tyre, and my wife refused to accept my half worn front tyre as decoration on our living room wall. 🤷‍♂️
 

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Wow!!!! You did some serious desecretion!!! :). I'm old and lowered the pegs on mine too. Adding seat height for me was adding a beadrider. ......but..... I do still slip forward. What did you do to even up the seat?

I have tried to buy a new bike, but I haven't found one that I like better. Everytime I walk into a dealership, my wife walks out with the new bike :D
 
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Discussion Starter · #11 ·
Wow!!!! You did some serious desecretion!!! :). I'm old and lowered the pegs on mine too. Adding seat height for me was adding a beadrider. ......but..... I do still slip forward. What did you do to even up the seat?

I have tried to buy a new bike, but I haven't found one that I like better. Everytime I walk into a dealership, my wife walks out with the new bike :D
Desecration, molestation, adaptation, evolution 🤣 ... the time came when my back no longer allowed my chest to hug the fuel tank. So that’s when the triple tree and handlebars of a CB300F let me keep enjoying my bike. Sitting more upright made the sliding on the seat a pain in the jewels. I started by lowering the pegs, like you did. And then came the idea of adding foam and adjusting the height of the seat at the front. I will take some pics and post them here for you. It made ALL of the change in the world!
 
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