Drive sprockets removal.

[Davez29]

Hi, just a quickie really, I bought a new chain sprocket kit for my bike. Never changed them on this bike or any in a long time, so was wondering will I have to take the fairing off to change the front or can it be eased off ok leaving the fairing in place, also is it better to loosen the rear sprocket nuts with the wheel in place for ease of removal? any help appreciated.

One other thing not sprocket related I just thought of and was wondering about if anyone can explain. I have read in a greybike article dec97/jan98 issue I think, that the NC29 has 4 piston calipers on the front and twin piston at the rear. I cant understand how this can be as I can only count 2 per caliper at the front and one to the rear on my bike. Can anyone explain to an idiot please :) here is piccy with the caliper specs http://i33.tinypic.com/io0n85.jpg


dave

[PARUS]

Hi, just a quickie really, I bought a new chain sprocket kit for my bike. Never changed them on this bike or any in a long time, so was wondering will I have to take the fairing off to change the front or can it be eased off ok leaving the fairing in place, also is it better to loosen the rear sprocket nuts with the wheel in place for ease of removal? any help appreciated.

1. No any fairing need to be taken off.
2. To remove front sprocket yon need on remove cover with speed cable.
3. Lock the rear wheel (or set up on gear) and unscreew bolt theat fix front sprocket.
4. Remove real wheel and unscrew bolt that fix rear sprocket. Change sprocket.
5. To change chain - some links need to be separated.

One other thing not sprocket related I just thought of and was wondering about if anyone can explain. I have read in a greybike article dec97/jan98 issue I think, that the NC29 has 4 piston calipers on the front and twin piston at the rear. I cant understand how this can be as I can only count 2 per caliper at the front and one to the rear on my bike. Can anyone explain to an idiot please :) here is piccy with the caliper specs http://i33.tinypic.com/io0n85.jpg
dave

To be open never saw 4 pistons calipers on NC29 at any model. I have changes mine to brembo 4 pistons and was absolutely happy about braking.

[Davez29]

Ok and thanks Parus I will give it a go as soon as my new shiney sprocket nuts arrive, I was hoping that you didnt have to remove the fairing for the front but was unsure. As far as the back goes I was just wondering if it was easier to loosen the sprocket nuts on the bike really, thinking of leverage, cut knuckles etc.. I know I would have to take the wheel off eventually.

My other question which I still find odd is that all the magazine tests I have for the NC29 ( I have a few) mentions 4 pot front and 2 pot rear, so I cant work out why this is. The reason I brought it up is because in the same mag mentioned above the review a Super4 and say it has lesser brakes than a NC29 with only 2 & 1 pots respectivly. But no matter how I look at the picture of the super4 they do look the same brakes as mine. Just thought I was mis-understanding how many pistons there are in a caliper.

dave

[PARUS]

Ok and thanks Parus I will give it a go as soon as my new shiney sprocket nuts arrive, I was hoping that you didnt have to remove the fairing for the front but was unsure. As far as the back goes I was just wondering if it was easier to loosen the sprocket nuts on the bike really, thinking of leverage, cut knuckles etc.. I know I would have to take the wheel off eventually.

My other question which I still find odd is that all the magazine tests I have for the NC29 ( I have a few) mentions 4 pot front and 2 pot rear, so I cant work out why this is. The reason I brought it up is because in the same mag mentioned above the review a Super4 and say it has lesser brakes than a NC29 with only 2 & 1 pots respectivly. But no matter how I look at the picture of the super4 they do look the same brakes as mine. Just thought I was mis-understanding how many pistons there are in a caliper.

dave

We had before CB400SF in our garage and front calipers was absolutelly same as NC29. Ever Haynes manual said - Front brakes Double floating disc; 2-piston Nissin sliding calipers. But as I mention before better to changes them to something newer.

[zul_cbr]

My other question which I still find odd is that all the magazine tests I have for the NC29 ( I have a few) mentions 4 pot front and 2 pot rear, so I cant work out why this is. The reason I brought it up is because in the same mag mentioned above the review a Super4 and say it has lesser brakes than a NC29 with only 2 & 1 pots respectivly. But no matter how I look at the picture of the super4 they do look the same brakes as mine. Just thought I was mis-understanding how many pistons there are in a caliper.

dave

Its a wrong info Dave. NC23 & NC29 probably equipped with 2 pot caliper per side and 1 pot for the rear.

But, I do agree, the stopping power is good enough IF you combined with steel braided lines.

Just like Parus, I've upgraded to 4 pot calipers, and the feel is much better than the stock. But, if u want as hard as nail, replace the stock master cylinder with 14mm or 16mm diameter size from 900RR or NC30/NC35.

[zul_cbr]

Ok and thanks Parus I will give it a go as soon as my new shiney sprocket nuts arrive, I was hoping that you didnt have to remove the fairing for the front but was unsure. As far as the back goes I was just wondering if it was easier to loosen the sprocket nuts on the bike really, thinking of leverage, cut knuckles etc.. I know I would have to take the wheel off eventually.

My other question which I still find odd is that all the magazine tests I have for the NC29 ( I have a few) mentions 4 pot front and 2 pot rear, so I cant work out why this is. The reason I brought it up is because in the same mag mentioned above the review a Super4 and say it has lesser brakes than a NC29 with only 2 & 1 pots respectivly. But no matter how I look at the picture of the super4 they do look the same brakes as mine. Just thought I was mis-understanding how many pistons there are in a caliper.

dave

We had before CB400SF in our garage and front calipers was absolutelly same as NC29. Ever Haynes manual said - Front brakes Double floating disc; 2-piston Nissin sliding calipers. But as I mention before better to changes them to something newer.

Some early model of CB400SF also comes with Brembo 4-pot, and Nissin 4-pot. I had a friend of mine which using CB400SF Project Big 1 with stock 4-pot Brembo.

[Wozza]

What 4-piston calipers are you guys using?

Good way of cracking the front sprocket bolt is a piece of wood through the swingarm and wheel, with the bike on a paddock stand. Works for a tri-arm anyway, not sure about a gullarm.

[cbr400rrn]

Before you remove the chain, get someone to sit on the bike with the back brake firmly pressed on and slightly loosen all rear sprocket nuts and front sprocket nut. This is the way i changed mine as i was told any other way could put to much stress on other parts of the bike.

[tanuki]

All good advise given here...

I would loosen all of the bolts before cutting the chain off it makes life so much easier.

As for calipers they have only ever fitted 2 pot sliding calipers to the 23 & 29 and any other calipers will need adaptor brackets which IMHO will do nothing except add unsprung weight.

My CBR will lift the rear wheen under heavy braking..granted I have EBC discs but if you think you need any more braking power than that LOL.....

[Davez29]

All good advise given here...

Yep, and thanks for all input. I know its not hard to do but not having changed sprockets for years I was looking for some tips, makes life easier as its nice to learn other peoples tricks.

As far as the calipers go I do find it strange that every test I have on the NC29 from various mags does inded print them as 4 pot, although one test in greybike (400 vs 600) nearly gets it right but falls down on the amount of pots to the rear, saying it has 2 pots. Maybe they all read the same specs book?

thanks anyway.

Dave