Help a duderhead with his gearing!
 

:puzzled: Up until now I've simply slapped a big-bore on my SS (well, had someone slap it on there for me!!!!), ripped off the original bodywork and lovingly dressed her in the sexiest carbon race-wear I could muster, and then simply swung me leg over #99.....and then CANED THE ARSE OFF IT!!
Wandering round the paddock all I have witnessed is feverish chat about "teeth" and frantic activity changing sprockets etc, so I think it about time I had a go at this mesel'. To that end I'd appreciate any help or advice to stop the continuation of the great tradition of me being thoroughly burnt-up on the straights!

I'm currently running standard gearing, with a front sprocket of (:mad: I don't know what, as I've not looked behind the cover!!!!!!!!!!!) and rear of 41. I assume that I'll need to go a couple less on the rear (sounds impressive?...no?) to stop it over-revving down the long straight.

Assuming that is correct does anyone know who I could contact in order that I could get the thing in time for the meeting?

Any help very greatfully received!

Andy #99

p.s. Sorry my Avatar still isn't working...my computer "lacky" (The Chairman!) is being slothful!

www.bandcexpress.co.uk are very very quick to deliver, usually next day if ordered before 4 O'clock .... and excellent value ....

I'd love to help mate but you really need some help from the SS boys. Phil and Ali were running VERY different gearing to my 620 monster.

I thought you did mate...I'm still scouring the "factors" for a 73-tooth rear, but may have to have one 'specially made!

Andy #99

:puzzled:

I still have a 41 on the back with a option to go to a 40, I 'm not sure what my 583 will pull in the way of high geraing alot will depend on wind strength & direction , Senna3 has fitted a 39 rear to his 675 which is the smallest he can go on the rear without using a shorter chain.

:lol:

Did I say 73? I meant 93!

You may need a bigger chain to run a 93 rear! :lol:

Most of the SS boys seem to run a 40 or 41 and I just don't think my 620 would pull gearing that tall. We must have very different gearbox's. The smallest rear I've used on mine is a 45. I ran 14/45 at Castle Combe but it's slightly too short for Snet. I have a 44 on order which reminds me, I need to ring B and C.

Otherwise I'll go to 15/46 and see what is better on the track day.

Snetterton should be fine with standard (15/41) gearing.

I bought a range of sprockets from B&C Express - rears are £17 each and a 14 front (about £12 I think) doubles your available ratios.

Go for one either side (say 39 and a 43) and a 14t front and you should have plenty to play with.

agree with ant..! its a question of buying a few and trying them out..it must be said it is hard to get it " right " for all parts of the circuit its finding the best for " most " of the circuit...............

maybe buy a few to try out at snetterton track day.?

Phil

Well, Renthal don't really believe that Monster sprockets are as important as Gixxer sprockets etc. I ordered a 44 rear over a month ago and it wasn't going to be here until August.

Well that order is cancelled.

I ordered a couple of sprockets from B & C on line just before Castle Combe and they arrived next day. they were a 40T and a 42T to go with the 41T and 43T I already hav, the 40T was to replace the one Chris Woods appears to have hijacked off me when I lent it him at Cadwell.
Can't trust these DD guys :D

not that this will be much help to Andy, but

if any of the 620 boys want to borrow 44/45/46 Renthal rears give me a shout, otherwise I'll just play hoopla with them in the back garden at the weekend :(:(

I'll borrow a 44 please!!!!

No problemo,

I've got to dash now, drop me a u2u and we can either meet up or I'll post it to you special del tomorrow so you'll get it friday.

Oh, forgot to mention, wear rate charged at £5 per mm :devil::devil:

Might let you borrow mine if I change from the current gearing (14/44) I shall be experimenting too on Friday :puzzled:

Oops didn't see Uncle Dunnies reply.

Thanks Lin, I'll run with Duncan's for now. Just in case you want to use yours.

I'll try 14/44 and see how I get on. I may even go to 15/46 and try and ride into it ...

I'm thinking 15-45 which was my normal road gear myself. My top speed was ok then at around 120 - I can't get near that since playing around with the gearing to be honest. :puzzled:

Well if you shorten the gearing you will lose top end. But gain drive off the corners and maybe make the bike feel better for you in certain corners because of the revs you are carrying.

I ran 15/46 on the track day we did at Castle Combe and the bike just wouldn't pull it down the straight. It would get to 8k RPM in top and not go over it, which is why I went down in gearing. With 14/45 I was maxing out on the straight at Snet but it wasn't really working on a few corners for me. With slightly taller gearing I'll be quicker down the straight (in theory) and it will let me go down a gear for the esses which I was struggling with. I wanted to use second to get out of their but it slid around a lot when I changed down (not blipping hard enough obviously) but having the taller gearing will make it easier to carry second through there.

I'll get better acceleration out of there into the bombhole can carry that all the way through Coram (when I decide to not rolloff) which is quite a fast and long corner.

That's the plan anyway :D

Erm ... isn't the carrier exactly the same between the monster (both old and new) and the SS? It's the same as the ST too, as I bought a spare carrier off an ST2 from eBay for a fiver!

I've just checked the B&C codes and they are - so unless you've ordered the fancy hard anodized ones then they should have arrived next day!

I've got a 43 and a 45 that can be borrowed on a first come, first served if I don't need them.

The ST one being the same suprises me as the SS & Monster 900 ones have a different sprocket offset, although looking very similar in appearance and take the same sprocket