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  #431  
Old 1st August 2016
SonWon SonWon is offline
Senior Chief Harley Engineer 1st Class
 
Join Date: Oct 2015
Posts: 1,325
Sportster/Buell Model: Superlow 1200T
Sportster/Buell Year: 2016
Reputation: 465846
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Quote:
Originally Posted by bgavin View Post
Apparently I will have to find a 2008 Roadster with low miles. Other than the seat, this is what I want. Decent clearance, dual disc up front, the 4.5 gallon tank.

The alternative is buying a new 1200T, raising the suspension, and doing without the dual disc up front.
I wanted dual disks too! I think the stock Superlow brakes are adequate, had zero problems so far. I almost went with a older Roadster too but wanted alloy rims and radials and ABS.
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  #432  
Old 1st August 2016
spacetiger's Avatar
spacetiger spacetiger is offline
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Join Date: Jan 2015
Posts: 557
Sportster/Buell Model: XL1200T
Sportster/Buell Year: 2014
Other Motorcycle Model: 6 others
Reputation: 203263
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Quote:
Originally Posted by Turbo Sporty 48 View Post
I paid a small premium for a 08 Roadster with 2500 miles, they are out there.
Upgrade the front Showas with Ricor Intiminator or Race Tec Emulators, the correct springs and oil.
For the rear I went Ohlins for rebuildability but other choices are good.
Add a free flow Air filter, Patriot Defender pipe and a PowerVision tuner.
Of course the seat is a challenge with the ECU placement but there are easy solutions, let Search be your friend.
Excellent summary.

I haven't posted in a while. I was working on a different bike, then about 2 weeks ago a drunk driver hit my 23 yr old son while he was walking on the sidewalk with 5 friends. 3 people were hit, my son got it the worse. After 5 surgeries, he begins the healing process. Luckily the damage was limited to the right forearm and left leg. Unlucky was the timing; he was 2 days away from moving cross country from Ft Collins, CO to Lynchburg, VA to start medical school. He will be deferred 1 yr so he starts in 2017.

Back to the bike, I bought my super low for basically the reasons SonWon cited. I figured it would not be difficult to raise the suspension; longer damper rods + longer [Ohlins] rear shocks. Rear clearance issues with the longer shocks were not a problem. The front was easy to do. The radial tires are a big plus for me. While they are better tires when you push it in the twisties (only sometimes for me), it is the possibility to use dual compound tires so you have harder compounds riding straight up and softer compounds when leaning over. I'm not sure they make dual compound tires in bias ply tires.

I have acquired better suspension testing gear (for springs) so I can test with greater accuracy; no more weights. Its accurate to within 2% out of the box, but I have calibrated it so it is probably 99% accurate. On the other bike (1988 Honda Hawk GT) I was able to set up the front with much lower oil levels to minimize the air spring affect and rely more on the spring to get much closer to a linear rate total spring on the front. I will come back to the sporty to relook at the front set up after I am done with the Hawk.

As for the brakes, since I don't push the bike to need dual discs, I have found the swap to a single 13" disc with 6 pot PM caliper was a good move. The new caliper matches up well to the front MC so the modulation feel of the front brakes improved over the oem setup. I recommend this upgrade. However, if you push your bike hard through the twistees a lot, you might want to consider a dual disc set up as the additional mass of the front discs will help reduce brake fade.

Jerry
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  #433  
Old 1st August 2016
SonWon SonWon is offline
Senior Chief Harley Engineer 1st Class
 
Join Date: Oct 2015
Posts: 1,325
Sportster/Buell Model: Superlow 1200T
Sportster/Buell Year: 2016
Reputation: 465846
SonWon has a reputation beyond reputeSonWon has a reputation beyond reputeSonWon has a reputation beyond reputeSonWon has a reputation beyond reputeSonWon has a reputation beyond reputeSonWon has a reputation beyond reputeSonWon has a reputation beyond reputeSonWon has a reputation beyond reputeSonWon has a reputation beyond reputeSonWon has a reputation beyond reputeSonWon has a reputation beyond repute
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Quote:
Originally Posted by spacetiger View Post
Excellent summary.

I haven't posted in a while. I was working on a different bike, then about 2 weeks ago a drunk driver hit my 23 yr old son while he was walking on the sidewalk with 5 friends. 3 people were hit, my son got it the worse. After 5 surgeries, he begins the healing process. Luckily the damage was limited to the right forearm and left leg. Unlucky was the timing; he was 2 days away from moving cross country from Ft Collins, CO to Lynchburg, VA to start medical school. He will be deferred 1 yr so he starts in 2017.

Back to the bike, I bought my super low for basically the reasons SonWon cited. I figured it would not be difficult to raise the suspension; longer damper rods + longer [Ohlins] rear shocks. Rear clearance issues with the longer shocks were not a problem. The front was easy to do. The radial tires are a big plus for me. While they are better tires when you push it in the twisties (only sometimes for me), it is the possibility to use dual compound tires so you have harder compounds riding straight up and softer compounds when leaning over. I'm not sure they make dual compound tires in bias ply tires.

I have acquired better suspension testing gear (for springs) so I can test with greater accuracy; no more weights. Its accurate to within 2% out of the box, but I have calibrated it so it is probably 99% accurate. On the other bike (1988 Honda Hawk GT) I was able to set up the front with much lower oil levels to minimize the air spring affect and rely more on the spring to get much closer to a linear rate total spring on the front. I will come back to the sporty to relook at the front set up after I am done with the Hawk.

As for the brakes, since I don't push the bike to need dual discs, I have found the swap to a single 13" disc with 6 pot PM caliper was a good move. The new caliper matches up well to the front MC so the modulation feel of the front brakes improved over the oem setup. I recommend this upgrade. However, if you push your bike hard through the twistees a lot, you might want to consider a dual disc set up as the additional mass of the front discs will help reduce brake fade.

Jerry
Sorry to hear about your son. I hope and pray for a complete and speedy recovery for your son and justice for the drunk!
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  #434  
Old 6th August 2016
bgavin bgavin is offline
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Join Date: Jul 2016
Location: Orangevale, CA
Posts: 429
Sportster/Buell Model: XL1200R, non-CA model
Sportster/Buell Year: 2008
Reputation: 128237
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If I can't find a 2008 Roadster, I'm mulling over a 1200T with extended forks (3-inch?) and the standard length rear shocks. This would necessitate an extended side-stand and possibly a longer front brake line.

It's a shame they no longer make the 2008 Roadster configuration.
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  #435  
Old 6th August 2016
SonWon SonWon is offline
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Join Date: Oct 2015
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Sportster/Buell Model: Superlow 1200T
Sportster/Buell Year: 2016
Reputation: 465846
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For 2008 Roadster performance in a Superlow you only need 1.5" up front and the same in the rear or a little more but not much (I think 14.1" are stock for a Roadster.).
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  #436  
Old 6th August 2016
scooby scooby is offline
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Join Date: Oct 2012
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Sportster/Buell Model: 1200R
Sportster/Buell Year: 2008
Sportster/Buell Model #2: FXLR
Sportster/Buell Year #2: 1988
Reputation: 154432
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Quote:
Originally Posted by bgavin View Post
If I can't find a 2008 Roadster, I'm mulling over a 1200T with extended forks (3-inch?) and the standard length rear shocks. This would necessitate an extended side-stand and possibly a longer front brake line.

It's a shame they no longer make the 2008 Roadster configuration.
I found my 2008 by luck, but I had to travel 300 miles to pick it up. It would be easier to get an 2007 and change tank and seat that to convert suspensions and what nots. I mean if you can find a good 07.
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