Eddieb's DR build thread.

[Eddieb]

14/41 will still pull 176kph on the limiter...

110kph at 4950rpm.

Not that I would ever do 176kph. According to http://www.gearingcommander.com/ going from the 15 to 14 tooth front makes about 300rpm difference at 100km/h in 5th gear.

[JATZ]

FWIW I ran a 15/41 setup on Queens B/day and carried a 13, only took a couple of minutes to swap them over and made a big difference. The 350 has a circlip holding on the sproket, I'm not sure what the system is on the 650, also, there wasn't to much adjustment left on the chain though

[NordieBoy]

Not that I would ever do 176kph. According to http://www.gearingcommander.com/ going from the 15 to 14 tooth front makes about 300rpm difference at 100km/h in 5th gear.

According to the Nordie Gearing Commander...

			5th	4th	3rd	2nd	1st
Front	Rear	Rpm	Kph	Kph	Kph	Kph	Kph
14	41	4500	100	83	67	51	34
14	41	4950	110	91	73	56	38
14	41	7800	173	143	116	88	59
							
15	41	4200	100	83	67	51	34
15	41	4600	110	90	73	56	37
15	41	7800	186	153	124	94	64

[Woodman]

Wouldn't you run out of puff before you got to 186km/h?

The only bonus I find with going to a 14 on mine (KLR) is that it is easier going down steep gnarly hills. Yeah like Bart says it livens things up a bit but the trade off for the revvy road ride isn't worth it.

[NordieBoy]

Yep. It wouldn't actually get to that speed.

At 110kph it's not even near max torque. Only pootling along at just under 5,000rpm.

[Eddieb]

Wouldn't you run out of puff before you got to 186km/h?

The only bonus I find with going to a 14 on mine (KLR) is that it is easier going down steep gnarly hills. Yeah like Bart says it livens things up a bit but the trade off for the revvy road ride isn't worth it.

On the DR 1st is a bit tall for tighter stuff, plus I commute daily in rush hour Wellington traffic and it might be a bit nicer there.

[Eddieb]

Ordered my 14 tooth sprocket today, should be here tomorrow.

[Magnum Noel]

Ordered my 14 tooth sprocket today, should be here tomorrow.

Ordered from where Eddie and how much? I need answers

[Eddieb]

Ordered from where Eddie and how much? I need answers

Wellington Motorcycles. $32

[Aslan]

Wellington Motorcycles. $32

Hi - don't mean to rain on your parade Eddie or other fans of the 14t front - I changed my 15t front to a 14t when my DR was near new and found the wear on the smaller sprocket excessive so have run stock 15/43 combination since - got 29000km from the original chain on this basis albeit with a Scott Oiler

[Eddieb]

Hi - don't mean to rain on your parade Eddie or other fans of the 14t front - I changed my 15t front to a 14t when my DR was near new and found the wear on the smaller sprocket excessive so have run stock 15/43 combination since - got 29000km from the original chain on this basis albeit with a Scott Oiler

Thanks Stephen, my current chain is about half worn so I'm not too concerned at this stage but it's a good point to think about.

[Eddieb]

Thanks Stephen, my current chain is about half worn so I'm not too concerned at this stage but it's a good point to think about.

I installed the 14 tooth sprocket this afternoon and took the bike for a quick spin up some local streets.

It's not a huge difference in performance or response at surburban speed limits but I live on a pretty decent hill and it definately didn't chug as much at the lower speeds.

[NordieBoy]

Hi - don't mean to rain on your parade Eddie or other fans of the 14t front - I changed my 15t front to a 14t when my DR was near new and found the wear on the smaller sprocket excessive so have run stock 15/43 combination since - got 29000km from the original chain on this basis albeit with a Scott Oiler

Stock is 15/41.

15/43 is fractionally higher geared than 14/41 but means it's really easy to go to 14/43 when you need to.

I run 14/46 in the fun stuff and 16/46 everywhere else which is the same as 15/43.

[Crim]

I run 14/46 in the fun stuff and 16/46 everywhere else which is the same as 15/43.

Not one to be pedantic - but I have it on good authority 1. that you run a 13 tooth 'all business' one - now either you or Padmei can't count???

Bibliography

1. World famous motorcycling guru / writer Craig Leth in his article, for Kiwibiker July 2011, entitled Adventure biking does not get any better than this stated "Nordie quickly changed his front 16 tooth highway sprocket to a 13 tooth 'all business' one on his DR650 while I sat and watched, confident in the fat power of the mighty KLR650 to pull me up any steep pitches

I remembered the quote cos the last bit of it regarding the fat power of the mighty KLR struck a chord

[Woodman]

Did i read somewhere that to reduce sprocket and chain wear then you should run sprockets with an odd numer of teeth. e.g. 15/43=good. 16/44=bad.