Lower seat for Thruxton R options. - Triumph Forum: Triumph Rat Motorcycle Forums
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post #1 of 12 (permalink) Old 06-02-2018, 02:14 PM Thread Starter
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Lower seat for Thruxton R options.

Hi,

Looking for more reach on my bike. As is, I am tip toeing with both feet. Looking to gain another inch or so. How much lower does the lower seat provide? Do I need to do a drastic change to the suspensions to gain that 1" or more of reach? Has anyone lowered there Thruxton 1200?

Thx.
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post #2 of 12 (permalink) Old 06-04-2018, 03:22 PM
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I'm short too man. It's generally not a good idea to mess with the geometry of a bike...especially with one so well put together as a Triumph as they're very good at producing proper handling bikes. You could also consider shaving the seat yourself if the "low seat" purchased isn't enough of a difference...or you can do what I've done in the past with sport bikes and just suck it up for the sake of handling.
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post #3 of 12 (permalink) Old 06-05-2018, 12:24 AM Thread Starter
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Quote:
Originally Posted by SAS3R View Post
I'm short too man. It's generally not a good idea to mess with the geometry of a bike...especially with one so well put together as a Triumph as they're very good at producing proper handling bikes. You could also consider shaving the seat yourself if the "low seat" purchased isn't enough of a difference...or you can do what I've done in the past with sport bikes and just suck it up for the sake of handling.
Thanks SAS3R. I hear you about the handling. I have never ridden a sports bike before and this Thruxton R is light years from my BMW R1200CI in term of handling. I am comfortable on the bike just having a hard time moving the bike with my feet while seated.
I think I'll just stick with lower seat.
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post #4 of 12 (permalink) Old 06-05-2018, 11:58 AM
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I'm 5' 5" 28 inseam 140lbs and with riding boots i was on my tipy toes. ALthough i've been riding for 8 years (i am not pro by any means) my previous bikes either had really low ride height (cruisers) or were light in weight with soft suspension (Ducati Scrabmler), so i was always used to being on both my feet. Sat on the Thruxton 1200r and the suspension didn't even BUDGE (talk about firm to the max), but the way it looked and how she road just sold me to get one! Now that i had a $15,000 USD, top heavy bike, i wanted to feel more secure with my feet.

I created more rear sag on my 1200r by removing the C-Clip from the Ohlin rear suspension that holds the Springs "preload adjusting part", thus giving the spring a longer travel. Although this does not change the bikes height, it does create more sag. Now when i sit down, I am now at the ball of the front of my foot (still not flat footing, but got closer). So i bit more control on a top heavy bike and feel comfortable. However, i noticed that i am almost always just on just one foot, so i may probably be able to handle stock set up without issues now.


Of course this method is mostly frowned upon. (I attached a Go-Pro camera to the rear of the bike to make sure i didn't bottom out, and to my surprise, it did not). It did create a slightly softer ride (another reason why others have done this mod as well), but you can always tick the stiffness up a bit to compensate. More information can be found on Page 3 and on here > https://www.triumphrat.net/club-cafe/...s-wrong-3.html . I did this mod, figuring at least this way, if i didn't like how it road or if i ruined the handling, i can revert back to how it was from the factory (although you do need to remove the shock from the bike, and then remove spring from the shock to input the C-Clip back on). It's been almost 3,000 miles this way without issues ) Also i did this myself, so it was FREE!


But if you don't feel comfortable with the above, get the seat shaved, not only height but width wise so that your legs are closer together (although the stock seat is pretty narrow already, but every mm counts )

Next, i would also see if there are a bit taller riding boots for you.
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post #5 of 12 (permalink) Old 06-10-2018, 08:02 AM
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If the seat change does not help, consider lowering the bike. To do that without messing up the geometry (much?) is to lower the front and rear the same. Different (shorter) rear shocks, then slip the front forks up in the triple clamp until the bike is level again.

Measure the distance between the frame and the ground, front and rear. You don't want to just get 1" shorter shocks and raise the fork 1", because trigonometry. Do this right and your trail and rake will be unaffected and you'll only lose a little wheelbase.
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post #6 of 12 (permalink) Old 06-10-2018, 07:24 PM Thread Starter
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For those who has the lower seat installed. How much more reach does the lower seat provide? 1/2" or 1". All I need is 1 more inch of reach and i'll be ok.
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post #7 of 12 (permalink) Old 06-10-2018, 08:01 PM
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Quote:
Originally Posted by Yitaro View Post
For those who has the lower seat installed. How much more reach does the lower seat provide? 1/2" or 1". All I need is 1 more inch of reach and i'll be ok.
I don't have it but per the configurator it is 15mm lower which is about .59 inches.
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post #8 of 12 (permalink) Old 06-10-2018, 08:48 PM Thread Starter
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Originally Posted by miglan20 View Post
I don't have it but per the configurator it is 15mm lower which is about .59 inches.
Thanks miglan20. Just the figure I need. Maybe the lower seat is all I need.

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post #9 of 12 (permalink) Old 04-07-2019, 12:08 AM
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I bought the low rider seat last year and I can definitely say there is not much difference in ride height. This riding season Iím going to have the seat shaved down by an inch and have the sides shaved to align with frame to see if that helps. If not then I will take it into the dealership and have them adjust both forks and shocks accordingly.
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post #10 of 12 (permalink) Old 04-11-2019, 02:19 PM
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Lower seat for Thruxton R options.

Iíve got the standard 1200 thruxton and am also a reserved 5í6, 29Ē inseam. As great as the bikes geometry and suspension set up is, itís useless if your not comfortable on it. I fussed around forever to get it just right and ultimately did a suspension swap from the stock 1200 set up to the Fox/Triumph RSU that is an option for the street twin.

It was not a direct bolt on as the rear lower mounting points were .5mm to wide and needed to be filled down a bit (very easy with a rotary grinder and fine grit wheel). I did need to find an aluminum bushing as well, but wasnít too difficult at the local hardware store. Overall I gained an inch and a half while also being able to adjust suspension in the same manor as the 1200r (compression, preload, etc)

All I can say is Iím more in love with the bike than ever. For long cruises I can soften the suspension with a few clicks and soak up the miles with no aches or pains as was before. A few clicks firmer and I can punish tight fast bends with more confidence than Iíve ever had. For what itís worth I know the geometry has been changed but with the adjustability in the suspension I feel like I can have two different bikes with just a few clicks.

Truth is the geometry of these bikes is set up for specific rider characteristics, not a one size all set up. The beauty of triumph is how people customize them and make them fit their preferences.

Bottom was stock set up, top is the fox RSU.

Cheers!




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