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Offline MrBumble

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30mm Lowering kit
« on: October 12, 2019, 07:07:22 PM »
Hi all,
I'm about to fit a 30mm lowering kit, but I'm unable to find a difinitive guide on the amount to lower the front by.  A mechanic friend of mine stated quite firmly that to retain the bikes geometry it should be the same at the front.  Anyone know the correct amount, bit nervous about getting it wrong.

thanks all.
Back in the Saddle after 30yrs.
2014 VFR 1200X
2014 CTX1300
2005 CBR1100XX

Offline Yasko

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Re: 30mm Lowering kit
« Reply #1 on: October 13, 2019, 07:34:42 AM »
Do a search Bumble as there are several opinions on this which are worth reading. :400:
Bill

Offline MrBumble

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Re: 30mm Lowering kit
« Reply #2 on: October 13, 2019, 09:12:26 AM »
Hi Bill,
I've been searching and read loads of different opinions.
I've been thinking about the comments made by my mechanic friend.

I'm currently stuck on the following, without a definitive answer.
If the front of a bike is lowered to make the bike trun quicker, then lowering the back will make it turn slower?

If the above statement is true then I beleive a safer approach would be to lower the front a little less a try it.
By dropping the whole bike front and back by 30mm, I will have effectively shortened the wheelbase, therefore making it turn quicker, so less at the front will compensate.

In my porrly informed opinion.

:)

thanks
Back in the Saddle after 30yrs.
2014 VFR 1200X
2014 CTX1300
2005 CBR1100XX

Offline MrBumble

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Re: 30mm Lowering kit
« Reply #3 on: October 13, 2019, 09:46:40 AM »
Back in the Saddle after 30yrs.
2014 VFR 1200X
2014 CTX1300
2005 CBR1100XX

Offline Yasko

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Re: 30mm Lowering kit
« Reply #4 on: October 13, 2019, 10:17:31 AM »
Sorry Bumble but I am not that tech savvy but I do no that a friend of mine had his done new (37000 miles approx. now)  at our excellent dealership and the front was lowered by 10mm and I am fairly certain that the rear was lowered 20mm as advised. However he did shorten the side stand and centre stand (an engineer metal/worker by trade) to accommodate the drop in height. His height is about 5 foot 10. He is cautious rider with moderate speed and he has had no problems whatsoever with the bikes handling.
Bill

Offline Yasko

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Re: 30mm Lowering kit
« Reply #5 on: October 13, 2019, 10:25:26 AM »
My original post

*Originally Posted by Yasko [+]
:400: and safe riding Rinsewind  :305: You will need your feet flat on the floor with some bend in the legs to safely cope with the weight of the CT. If you fall short of that there is a lower seat (about 20mm) or/also  lower the bike with the lowering kit (about20mm) and then lower the front by 10mm. The side and centre stand should also be shorten to accommodate the changes if using the lowering kit. This what my dealer has done to several CT's.
Bill

Offline superduper

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Re: 30mm Lowering kit
« Reply #6 on: October 13, 2019, 10:39:03 AM »
I dont know the definitive answer but when I lowered my rear by 20mm I lowered the front by 12mm

it was brilliant, no issues what so ever, turned well and stable as ever

Offline MrBumble

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Re: 30mm Lowering kit
« Reply #7 on: October 13, 2019, 12:22:28 PM »
Thanks guys, very helpfull.

After reading sooooo much on Geometery, apart from a Headache, I'm going to lower the front by 20mm.

thanks.
Back in the Saddle after 30yrs.
2014 VFR 1200X
2014 CTX1300
2005 CBR1100XX