Author Topic: Rear spring (Read 9494 times)

manuel32 · « **on:** 26 August 2012, 07:15:47 am »

Has anyone tried the progressive springs on the market ?
http://www.ebay.co.uk/itm/Hyperpro-Progressive-Rear-Shock-Absorber-Spring-Yamaha-FZ1-FZ1S-Fazer-Non-ABS-/150873335757?pt=UK_Motorcycle_Parts&hash=item2320c067cd#ht_2416wt_1186
I guess starting soft and progressively getting harder (ooh Mrs Jones)

I presume all bikes are sold with a rear spring strong enough for two up or the big hairy fat bastard

,, but what about light weights?, do we have to be bounced around?

sadlonelygit · « **Reply #1 on:** 26 August 2012, 11:14:03 am »

The standard spring is set for a 10 stone rider, usually people fit firmer springs!

MadDogMcQ · « **Reply #2 on:** 26 August 2012, 12:23:04 pm »

10 stone riders??? Who told you that? How many 10 stone riders are there on Fazer 1000s'?? Jeez, last time I was 10 stones was in 1976!

VNA - BMW Wank · « **Reply #3 on:** 26 August 2012, 06:46:32 pm »

The OE shock is OK but generally doesn't last long as yes the spring is only suitable for lightweights.
So for most people by 6 - 10 thousand miles the shock is done.

Firms like K-Tech can overhaul it (new seals and re-gas?) and can advise on a suitable spring. I got the full K-Tech upgrade (no longer available) and a shock suitable for a 14 stone rider. I weighed myself fully kitted and rounded up.

The difference was amazing.

sadlonelygit · « **Reply #4 on:** 26 August 2012, 08:55:00 pm »

the stock spring is rated 425-450lbs/in.

bigsteve · « **Reply #5 on:** 26 August 2012, 09:03:55 pm »

not had one for my fazer but had a hagon rear shock built for my GSX1100G and when i ordered it from
http://www.bike-revival.co.uk/page1.html they wanted to know my weight and passengers weight and the
% of solo to pillion riding i did
wasnt cheap but well worth the money
also have hagon progressive springs for forks
thinking of getting one built for Fazer over winter

manuel32 · « **Reply #6 on:** 26 August 2012, 09:24:53 pm »

If its dry tomorrow i shall close the damping adjuster down and see if it still works,as i am only 11 stone and a biiiitttt

then the spring may already suit me, although it jumps me out of the seat .

Rusty · « **Reply #7 on:** 27 August 2012, 12:02:36 am »

Can someone actually define what the big difference is? And I'm not talking track day difference here just normal roads. I watched a second hand wilbur rear shock sell on ebay recently for a handsome sum and wondered if road riding really warrants that kind of spend?

For example wearing full kit I'd probably come in at close to 17 stone, and my original rear shock is set for 10st and 34k miles old.

Written down like that it sounds like a recipe for disaster, yet when I ride the roads apart from when riding with newish sports 600's or R1's etc I don't get the impression that I'm struggling in the bends. The limiting factor for me is tyre adhesion as I feel them slip 'n' grip again every now and again, but then I use touring compound tyres for longevity so no real surprises there. As for comfort I've no complaints there either, other than the seat could be better.

Falcon 269 · « **Reply #8 on:** 27 August 2012, 05:19:26 am »

manuel32 has a Gen 2, lads ... you're talking Gen 1 shocks. manuel, disregard what you've read so far - there's a lot of difference between the two models.

The 2006 model year Gen 2 was over-sprung on the shock making for a jarring ride for lightweight riders - the complete opposite of the Gen 1, which was under-sprung for the entire production life of that model.

The Gen 2 shock can be resprung but is not rebuildable.

Yamaha fitted a softer spring to the 2007 Gen 2 and onwards which improved things for lighter guys.

Unlike the Gen 1 which has a progressive spring as standard (weak but progressive is more accurate

) , the Gen 2 spring is single-rate.

I can't speak from experience on the Gen 2 but I can say that the Hyperpro progressive rear spring for the Gen 1 has spring rates better matched to the bike and suitable for heavier riders. If Hyperpro have been as good with their choice of progressive rates for the Gen 2, it could be a worthwhile mod.

Getting the spring rate correct for the rider's weight is the first and most important step in setting up suspension.

Rusty, to avoid further confusion between models, please start a separate thread for your question and we can all pitch with answers there.

sadlonelygit · « **Reply #9 on:** 27 August 2012, 10:59:33 am »

Quote from: Falcon 269 on 27 August 2012, 05:19:26 am

manuel32 has a Gen 2, lads ...

BURN HIM!!!!!!

sadlonelygit · « **Reply #10 on:** 27 August 2012, 11:14:49 am »

Quote from: Rusty on 27 August 2012, 12:02:36 am

Can someone actually define what the big difference is?

the reason your bike slips a bit is the big difference. decent suspension keeps the wheel in contact with the road and allows whatever tyre that is fitted to do it's job properly.
EVERYBODY who has ridden my bike comments on how it just absorbs road imperfections and lets you get on with the ride, because i have spent quite some time sorting out the suspension. with your own bike it gradually gets worse and you don't notice it/ride around the problem and you just accept it.
a set of proper weight matched springs and fresh oil/regas will be the best money you ever spend on a bike............unless you fit a 5bar turbo of course!

Rusty · « **Reply #11 on:** 27 August 2012, 11:44:16 am »

Thanks SLG I get the picture now. I thought those little 'moments' were down to reaching the limit of my tyres adhesion.

manuel32 · « **Reply #12 on:** 27 August 2012, 05:12:35 pm »

GEN2

Ha ha , your on an old ,old fzs1000 fazer,,keep up will you.. they are nice bikes but surely as i get older the bikes get older, as yours does,,
it sure is nice to buy a newer one and cry as the old one goes to some council house owner who will ride it without tax and test

I just bought the newest i could afford, so good or bad, its my bike and it will be ridden hard and looked after,just like yours..you with the old bike

Anyhow i did not ride today as the weather is shitty,dry,wet,dry,werydet,wry,det,dwry,and rain haha

sadlonelygit · « **Reply #13 on:** 27 August 2012, 05:51:43 pm »

OS'funny but my mate who used to have a gen2 now owns a gen1 after having a go on mine.
But if you ride like a gurl it doesn't matter what you own

kebab19 · « **Reply #14 on:** 27 August 2012, 06:36:56 pm »

Wouldn't scoff too much, Manuel. Unless all the Gen2 owners on this website are silent all the time you're in a small minority here. Best head off to our American cousins' FZ1oa site for spring advice, where quite a few of them own a Gen2.

And since you (didnt) ask... I think I'll liven the thread up a bit by saying that despite the Gen 2 being a newer bike, its nowhere near as good an all-rounder on the road as the old model.

VNA - BMW Wank · « **Reply #15 on:** 27 August 2012, 10:04:38 pm »

Can someone actually define what the big difference is?

I just noticed mine going off a bit from new. Particularly I could get much power down coming out of tight corners or big roundabouts. If I opened the throttle too much coming out of a tight turn the bike would just tie itself in knots. It gets a bit bouncy castle. I bought the bike new. The first time I loaded it up for a week away I turned the rear shock preload up full and left it there.

So with about 12,000 miles on the clock I got the shock out and sent it to K-Tech. They used to do a full upgrade, I think I paid 380 quid or something. Basically a whole new shock, just you save over buying a new one as they use old shock for the shaft and mounts.

The difference was amazing. I could get plenty of power down leaned over coming out of turns, just driving it hard out of every turn was amazing. The bike was so much quicker and enjoyable after getting the shock sorted.

Whether a simple road rider like myself gets the full advantage of the fancy shock I've got I don't know. But I do know, that getting an OE shock working correctly again and with the right spring, that alone will make a big difference.

A wee snap of my K-Tech shock;

manuel32 · « **Reply #16 on:** 28 August 2012, 07:04:22 am »

Ask yourself the question (why are all the gen 2 owners quiet all the time on this web site?)

its because of twats like you -"kebab 19"

Shouting Gen 2 owners down,whats that all about?, we own Fazers,yeh? get your head out of your arse.

Manuel

fireblake · « **Reply #17 on:** 28 August 2012, 11:26:49 am »

Nuff said guys. i think people are taking friendly banter the wrong way?

kebab19 · « **Reply #18 on:** 28 August 2012, 01:12:00 pm »

1. Reading my post back, I was fairly polite to you. I offered advice regarding extensive Gen2 knowledge in the US site.
2. You shouted down Gen 1 owners, gloating over ownership of a more modern bike and implying they Gen1 owners are impoverished chavs who ride illegally. After dissing Gen1 owners you now see it as an outrage to shout down Gen 2 owners.
3. For the record, I never criticised Gen 2 owners; I criticised the Gen 2 bike. And yes, I have ridden both.

As a useful life skill, I suggest you learn to differentiate between a motorcycle and it's owner; it may save you from embarrassing yourself in front of your peers by resorting to childish insults.

Falcon 269 · « **Reply #19 on:** 28 August 2012, 02:35:10 pm »

Quote from: kebab19 on 28 August 2012, 01:12:00 pm

3. For the record, I never criticised Gen 2 owners; I criticised the Gen 2 bike. And yes, I have ridden both.

You've ridden a Gen 2 owner?

Not sure I want to know anymore about that, mate ...

richfzs · « **Reply #20 on:** 28 August 2012, 10:09:21 pm »

Quote from: kebab19 on 28 August 2012, 01:12:00 pm

it may save you from embarrassing yourself in front of your peers by resorting to childish insults.

too late, he already did that

manuel32 · « **Reply #21 on:** 28 August 2012, 10:28:55 pm »

I did get out for a ride tonight but did not have time to adjust the shock,,the nights are getting darker

fireblake · « **Reply #22 on:** 29 August 2012, 05:17:44 pm »

Maybe it's time to separate the Gen1 from the Gen2 on this forum and have 2 forum areas? This isn't the first time a Gen2 owner has taken advice about a Gen1 bike?

jackojet · « **Reply #23 on:** 29 August 2012, 05:49:55 pm »

Was thinking that myself fireblake

a separate wee corner for us old, riding old bikes

manuel32 · « **Reply #24 on:** 29 August 2012, 07:16:25 pm »

Is it cause i is black ?