BMW s1000rr shock information required

[stu]

Does anyone know the inside diameter of the spring on a BMW s1000rr shock?

I've ordered one and looking for an uprated spring (fat bastard rate!) to fit for this weekend.

Any information would be great. I need the free length (I think 175mm?), the inside diameter (I believe 2.25"?) and an approximate spring weight/rate for 105kg rider.

Any help would be much appreciated, and paid for in tea!!

Cheers
Stu

[force-v4]

Speak to Ricky, he's already brought a spring for his bmw shock @ 800lb from demon tweeks for less than £35.

[james-l]

hi i use d.faulkner springs (01243 543049) for all my shocks . most sizes and rates stocked and one off specials. j

[force-v4]

demon tweeks was cheaper than faulkner, a few of us have already compared the prices for the above shock

[porndoguk]

demon tweeks was cheaper than faulkner, a few of us have already compared the prices for the above shock

Im yet to dismantle mine however the spring i ordered was a

2.25" int dia
7" Free Length
800 lbs

I weigh between 10-12st for a guide on the spring size im a fatty at the min but the diet starts as soon as i return to work after my paternity leave :D

Costs

Faulkner Quote:

List price is £28.10 plus carriage & VAT ( UPS = £9.50 plus VAT )

Stock colour is Gloss Black.

They are in stock & can leave today by UPS if you wish.

If you want another colour, for example Red, Blue, Yellow, White etc then we charge £3.50 per spring & we would need 3-4 days notice for it to be repainted.


Demon Tweeks

Black Spring only, "faulkner spring"

Demon Tweeks stock your shock spring with free P&P with it costing the total of £31.55 inc VAT

Hope that helps

Rick

[stu]

Thanks for the information guys.

I've ordered a 850lb spring from Demon Tweeks and will try anf get everything fitted tomorrow evening in time for a trackday on Saturday...... que an evening full of hammering and swearing!!

[RoninZX-10R]

Stu, so how did the BMW shock perform at the track day? Really keen to hear whether it's a worthwhile mod for my trackbike.

[stu]

The shock was amazing!!!

Although I don't have much to compare it to. I could take everyone on the twistys and was never overtaken on any corners, although the 1.5 mile staight saw the big bikes eat me up! - but I soon had them again :)

I think it's a very worth while mod, but I had to do a little more 'modification' that I was expecting. The shock didn't fit in the top shock mount so a bit of grinding was required.......I took approx 2mm of the shim, then had to very carefully shave a mm off both the top of the shock, and off the shock mount. A mount on the frame required a couple of mm taking off too but nothing drastic. It took about 2 hours to fit in total.

All in all it cost me around £150 for the shock, spring, spring compressor and express delivery, as I was in a bit of a rush to get the bike ready for the track on Saturday. Whether it would be better to save up a bit more and get a 'proper' shock such as a Nitron I'm not sure. But I am very, very happy with the bike as it is now!

The way I see it is that you'll never get a 400 fast in a stright line, so forks, shock and brakes are the way to go. I've got the SP-1 front brakes, stiffened fork springs and the 1000rr shock - although now I need a bit more damping in the front end so a havier weight oil is required.

I'll happily answer any questions if you have anything specific......unfiortunately I was in too much of a hurry to get the shock in to think about documenting with photos.

Stu

[RoninZX-10R]

Sounds like a promising mod, especially compared to the standard shock.

Regarding modifications to the actual shock, have you only installed the heavier spring, it hasn't been revalved?

[stu]

Yes I've only installed the heavier spring. I went for an 850lb Faulkner spring as I'm a fat bastard at 105kgs. I have the spring preload set pretty close to the top so you'd want a softer spring for a regular build