Shock Springs

seb421 · Post by **seb421** » Fri Nov 02, 2012 6:06 pm

Does anyone know where you can get a Spring for the WP shock off the shelf,

mine has a spring rated at 70 or 75 kg's i think and have not bothered to install it, would like to see what my options are, seller said it was for 14 stone rider, but when i checked the spring it wasn't

or if any other makes springs fit like hagon or hyperpro etc?

benny hedges · Post by **benny hedges** » Fri Nov 02, 2012 6:25 pm

i just got a yacugar spring from ftr suspension for mine mate.
was about £70 iirc.

massively improved the handling

seb421 · Post by **seb421** » Fri Nov 02, 2012 6:33 pm

benny hedges wrote:i just got a yacugar spring from ftr suspension for mine mate.
was about £70 iirc.

massively improved the handling

Is it easy to swap over a shock spring? is there any oil to put in etc, is it a WP that you have mate?

Thanks

AMCQ46 · Post by **AMCQ46** » Fri Nov 02, 2012 7:02 pm

Seb those numbers don't sound right.

My springis now a 950 lb spring which converts to a 17kg/mm

That is for an 83 kg rider

benny hedges · Post by **benny hedges** » Fri Nov 02, 2012 8:03 pm

seb421 wrote: Is it easy to swap over a shock spring? is there any oil to put in etc, is it a WP that you have mate?

Thanks

no i just fitted a progressive spring in the standard shock and its spot on.
even riding two up, brilliant.

you need a hydraulic press ideally to compress the spring then the retaining cups just lift out.
takes 15 mins with the right kit.

yacugar will fit the spring for you for free if you send the shock to them.

seb421 · Post by **seb421** » Fri Nov 02, 2012 8:04 pm

AMCQ46 wrote:Seb those numbers don't sound right.

My springis now a 950 lb spring which converts to a 17kg/mm

That is for an 83 kg rider

sorry got it wrong it says on it 170-175 which i guess is pounds? which is upto 12.5 stones

AMCQ46 · Post by **AMCQ46** » Fri Nov 02, 2012 8:14 pm

Seb that won't be pounds it will in Newtons which is 10 time the kg rating sothat spring is the same as mine
17kg = 170N

How heavy are you?

Trainraider · Post by **Trainraider** » Fri Nov 02, 2012 8:15 pm

Changing only the spring of the rear shock.

That sounds really good.

That would possibly solve half of the hand-numbing-problem. After that you wouldn't need to squeeze the bars like a gorilla with constipation to stay on the saddle on a bumpy road.

Flatline · Post by **Flatline** » Fri Nov 02, 2012 10:09 pm

Trainraider wrote:After that you wouldn't need to squeeze the bars like a gorilla with constipation to stay on the saddle on a bumpy road.

seb421 · Post by **seb421** » Fri Nov 02, 2012 10:33 pm

AMCQ46 wrote:Seb that won't be pounds it will in Newtons which is 10 time the kg rating sothat spring is the same as mine
17kg = 170N

How heavy are you?

Usually from 13 in the summer upto 14 in the winter

Sent from the Bat Cave via Cup and String

AMCQ46 · Post by **AMCQ46** » Fri Nov 02, 2012 10:36 pm

If you only ride solo that spring will be ok for you. I was using a 150N before and it was great till I added a pillion, the 170N is a better compromise for me with a mix of solo and light pillion, so should be bang on for you only solo.

benny hedges · Post by **benny hedges** » Fri Nov 02, 2012 10:53 pm

thats why i got the progressives...
the adjustment actually works, unlike the standard hardtail spring lol.
set it up how you want it and it makes no difference to the handling with a passenger or luggage.

within reason lol.... if you had a big massive fat mutha on the back carrying a frame tent it might be a bit boingy lol

seb421 · Post by **seb421** » Sat Nov 03, 2012 2:20 am

AMCQ46 wrote:If you only ride solo that spring will be ok for you. I was using a 150N before and it was great till I added a pillion, the 170N is a better compromise for me with a mix of solo and light pillion, so should be bang on for you only solo.

Nice one buddy yeah i only ride solo now, not had a pillion on for about 3 years or more can't get hangers on with these exhausts without adapters / spacers and i don't like the look that gives

hopefully with the WP on and the progressive hagon springs for the 954 forks off BSM the bike will feel brilliant

wombles is thudding over the smallest of bumps and cracks in the road, went on a long ride a while ago and my kidneys was aching after it with the bouncing / thudding on a fast ride

seb421 · Post by **seb421** » Sat Nov 03, 2012 7:41 am

REAR SHOCK SPRINGS

http://www.vtr1000.org/phpBB3/viewtopic ... 24#p232324

Thanks Al for the help you gave, spent a few hours looking into how it all converts now i was boggled for a while lol

AMCQ46 · Post by **AMCQ46** » Sat Nov 03, 2012 8:45 am

Hi Seb, glad you got it worked out.
I guess the key thing that I forgot to explain was the the number on the spring although sometimes quoted as kg, lb or Newtons is nothing to do with the weight of the rider. It is actually the spring rate and is the number of kg needed to move the spring by 1 mm ( or inch if you use lb rating).

To work out what spring rate suits what rider weight you have to then factor in the shock linkage ratio, the weight of the bike, the weight distribution of the bike and the type of riding. Then you add the rider weight (in full riding gear). And I use the racetec web site to work that out for me

VTR1000.ORG

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