tl1000s spring replacement

[98tls]

Hyperpro make this but even though it has a spring you still have to keep the spring on a stick,they call this spring a "helper",go figure.

[Robert Taylor]

i have a picture of a tls with a coilover in the place where the damper should be. i could send it to yous

Please, whilst I still need to view an installation firsthand ( from several angles ) it will at least be indicative.

[Robert Taylor]

Hyperpro make this but even though it has a spring you still have to keep the spring on a stick,they call this spring a "helper",go figure.

Because there is little or no compression damping in the Hyperpro damper ( low cost design ) The Ohlins damper has a properly arranged compression damping curve that matches the standard ''spring on a stick''. The standard damper has enormous friction crudely helping to hold the rear end up in its stroke and assisting no end with tyre sales. The Hyperpro will have a lot less friction than the oem, but as it has very little compression damping it needs further spring assistance to help hold the bike up. Its cheaper to add a progressive spring than to spend laborious hours in developing a damping curve that otherwise arrests uncontrolled spring compression movements.

[98tls]

Because there is little or no compression damping in the Hyperpro damper ( low cost design ) The Ohlins damper has a properly arranged compression damping curve that matches the standard ''spring on a stick''. The standard damper has enormous friction crudely helping to hold the rear end up in its stroke and assisting no end with tyre sales. The Hyperpro will have a lot less friction than the oem, but as it has very little compression damping it needs further spring assistance to help hold the bike up. Its cheaper to add a progressive spring than to spend laborious hours in developing a damping curve that otherwise arrests uncontrolled spring compression movements.

Uh huh......ive just remembered there is or at least was a damper/spring unit made for the TLS.WP made one,will see if i can rustle up a pic

[cowpoos]

Because there is little or no compression damping in the Hyperpro damper ( low cost design ) The Ohlins damper has a properly arranged compression damping curve that matches the standard ''spring on a stick''. The standard damper has enormous friction crudely helping to hold the rear end up in its stroke and assisting no end with tyre sales. The Hyperpro will have a lot less friction than the oem, but as it has very little compression damping it needs further spring assistance to help hold the bike up. Its cheaper to add a progressive spring than to spend laborious hours in developing a damping curve that otherwise arrests uncontrolled spring compression movements.

would a PDS type shock be a solution to a nicely handling tls rear end? or is the same result nail by the ohlins damper replacment with its unique valving spec?

[98tls]

Bugger,wrong again,the WP unit was the same as the Hyperpro as in the spring was just a "helper".They both show however that there is room for a spring in there,wouldnt work with a Hagon as i have as the unit sits upside down to the ohlins unit.Fwiw pics of a WP,my hagon and an ohlins.

[98tls]

Theres always another alternative and weld tabs on a TLR swinger and go from there?

[ric007]

here it is

[98tls]

here it is

What brand is it mate?,it looks abit like the Hyperpro which as i posted still needs the spring on a stick,there is another unit called a Wilbers,and by all acounts very good but still trying to get a pic.

[cowpoos]

What brand is it mate?,it looks abit like the Hyperpro which as i posted still needs the spring on a stick,there is another unit called a Wilbers,and by all acounts very good but still trying to get a pic.

just from memory...don't maxton in the UK do one for tls as well??? does that one have a spring?

[98tls]

just from memory...don't maxton in the UK do one for tls as well??? does that one have a spring?

Still uses the spring on a stick poos,although considered a pretty good setup,They did a shitload of work with there setup and a TLS,ive still got all the magazines somewere.I have seen a replacement spring on a stick advertised in Kiwibiker about 2 years ago but from memory it was $1700 or so.I think Robert or anyone else that came up with something that worked using a collective spring/damper unit would be on to a real winner really,theres the Bitubo but personally i am not convinced,mind you theres only so many mad old bastards like me that still bother with them so time/money spent it probably doesnt add up for someone to do so.In saying that i would just about be convinced to send my TLS up across "the cursed water" for you to muck about with Robert,for maybe a discount on the resulting item.

[Sensei]

I am fixing broken mounting point for the Damper on a bike here , have welded up the cracks & are now to fit my s/steel keeper plate to stop the bolts cracking the ally again . Are running 2 bolts right through the Damper unit & nylock nutting them to hold it all togther . Room is fucken tight but are neally sorted with the setup

[98tls]

I am fixing broken mounting point for the Damper on a bike here , have welded up the cracks & are now to fit my s/steel keeper plate to stop the bolts cracking the ally again . Are running 2 bolts right through the Damper unit & nylock nutting them to hold it all togther . Room is fucken tight but are neally sorted with the setup

Nice.......wondered how you guys got on with that.

[Robert Taylor]

What brand is it mate?,it looks abit like the Hyperpro which as i posted still needs the spring on a stick,there is another unit called a Wilbers,and by all acounts very good but still trying to get a pic.

There is no distributor for Wilbers so the backup is even worse than some of the others who are little more than resellers. ( No apologies for a factual comment )

There is one thing I have overlooked which Pussys post has alerted me to, that the Bitubo is a damper and spring unit combined that is mounted wholly in the same position as the original spring on a stick. If so god knows how they can make a damper fit in that small space that will have reasonable durability. Someone may like to send me an image. But the smart thing is this is not playing with fire in respect to the motion ratio applied on that spring.

''Motion ratio'' is automotive speak, we talk in the motorcycle world of link ratios. But every motorcycle swingarm imparts a ''motion ratio'' to the shock absorber irrespective of whether there is a link or not. Simplistically, for any given amount of rear axle travel in a vertical direction there will be a given amount of shock shaft movement. If for example the geomery is rearranged so that the shock shaft moves further for the same given unit of rear axle travel then it follows that the shock shaft will be moving at higher velocity. As damping is also velocity dependent it will give more damping. This is the EXACT reason I launch into a tirade of explanation when someone wants to fit an Ohlins shock ( or otherwise ) that is built for a specific make and model into something completely different.

So, with respect to the TLS it is logical that the motion ratio applied to the ''spring on a stick'' is quite different to that applied to the seperate damper unit. So the required spring rate will be different. This may be playing with fire and I will have to think about it further. To that end dont hold your breath!

[TLDV8]

My rear spring body is worn an causing alot of stichtion, also has alot of sideways play, seems to be a non serviable part. has anyone delt with these before?

The only SOAS stick option besides the OEM item is going to a Bitubo unit (with no internal damping) if you are currently running a Ohlin's/Wilbers/Penske that replaces the OEM rotary damper only.
There was was group buy for the gutted Bitubo on TLZone.
Or go for the Bitubo complete (coil over damper) or as some have done,convert the stock unit with a new shaft to linear bearings.

As i already had a Ohlins it was easier and cheaper for me to machine a billet unit to take a 800lb Lindermann spring with the body having a 14mm shaft and replaceable bushings from Racetech.
The stock spring unit can start to wear as soon as the chrome wears on the shaft,as early as 40000 kms (or less)