Posted by Cale Dupre' on August 19, 2007, 6:40 pm
I have a 2007 Triumph America and this past weekend I took a trip with my
girlfriend on the back for the first time. I readjusted (stiffened) the rear
springs according to the owner's manual. Afterwards she told me it was just
too rough of a ride for her.
My question is, if I set the springs back to standard solo rider and she
rides like that, is there any immediate or long-term harm that could happen
to the bike? BTW, I did re-adjust tire pressure prior to her riding.
Thanks for any input on this.
Posted by George R. Young on August 19, 2007, 8:45 pm
> I have a 2007 Triumph America and this past weekend I took a trip with
> my girlfriend on the back for the first time. I readjusted (stiffened)
> the rear springs according to the owner's manual. Afterwards she told
> me it was just too rough of a ride for her.
>
> My question is, if I set the springs back to standard solo rider and
> she rides like that, is there any immediate or long-term harm that
> could happen to the bike? BTW, I did re-adjust tire pressure prior to
> her riding.
>
> Thanks for any input on this.
>
>
Setting the preload only affects ride height under load, not stiffness.
Posted by OH- on August 20, 2007, 4:10 pm
>> I have a 2007 Triumph America and this past weekend I took a trip with
>> my girlfriend on the back for the first time. I readjusted (stiffened)
>> the rear springs according to the owner's manual. Afterwards she told
>> me it was just too rough of a ride for her.
>>
>> My question is, if I set the springs back to standard solo rider and
>> she rides like that, is there any immediate or long-term harm that
>> could happen to the bike? BTW, I did re-adjust tire pressure prior to
>> her riding.
>>
>> Thanks for any input on this.
>>
>>
> Setting the preload only affects ride height under load, not stiffness.
Correct. But, the spring forces will be larger with a passenger.
If the bike has adjustable rebound damping, try increasing that
a little.
--
Ole Holmblad - Göteborgs Prima MCK / MK Pionjär
TDM850 / WR450F FL#44 OTC#489 UKRMSBC#08
SGFPTH#00 Remove hat to answer by mail
Posted by OH- on August 20, 2007, 4:10 pm
> George R. Young wrote:
>>Setting the preload only affects ride height under load, not stiffness.
> Preloading the springs does not increase the *spring rate*, it takes the
> same
> amount of force to move the chassis an inch.
> But, adding more *weight* and preloading the spring to adjust the ride
> height
> increases the natural frequency of the spring.
<snip>
In my universe adding weight to a spring-mass system decreases
frequency.
--
Ole Holmblad - Göteborgs Prima MCK / MK Pionjär
TDM850 / WR450F FL#44 OTC#489 UKRMSBC#08
SGFPTH#00 Remove hat to answer by mail
Posted by The Older Gentleman on August 20, 2007, 2:25 am
> My question is, if I set the springs back to standard solo rider and she
> rides like that, is there any immediate or long-term harm that could happen
> to the bike?
No
--
BMW K1100LT 750SS CB400F CD250 CB125 SL125
GAGARPHOF#30 GHPOTHUF#1 BOTAFOT#60 ANORAK#06 YTC#3
BOF#30 WUSS#5 The bells, the bells.....
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> my girlfriend on the back for the first time. I readjusted (stiffened)
> the rear springs according to the owner's manual. Afterwards she told
> me it was just too rough of a ride for her.
>
> My question is, if I set the springs back to standard solo rider and
> she rides like that, is there any immediate or long-term harm that
> could happen to the bike? BTW, I did re-adjust tire pressure prior to
> her riding.
>
> Thanks for any input on this.
>
>