I love my Tiger, but at 70 mph it is running almost 5k rpms. I'm thinking of dropping the rear sprocket from a 50 to a 47 (the smallest I can find). I don't know why no manufacturer makes 6th gear a road gear.....? Does anyone know of any issues, other than losing a little from 1st gear and spreading out the gearing a little more? Thanks!
Sprocket change for highway
- Thread starter JCW800
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Have you considered changing the front sprocket instead of the rear. Much less work involved. I changed the front sprockets on my two Bonneville T100's.
You are very welcome. I hope it works for you.
I checked and there is only 3/8" between the chain and the engine case and there is no guard. It has a 16T and that's all it will take. I've ordered a 47 rear to replace the 50. I hope that makes a little difference. I don't understand 5K rpms at 70 mph on a 800cc bike. The gearing is waaaaay too close. Why not spread out 5th and 6th since they are road gears...? This is not a motocross bike.
Bikes only need 5 gears, sixth is an Overdrive for cruising and saving fuel at 60 and 70 mph plus.
There's a market for making a guard to protect engine cases.
Looks like you have no choice but to change the rear sprocket. I have an 800cc and mine runs 5K at 70 mph and 6K at 83 mph. That said, I average 41 mph on the road at those speeds with the hard luggage mounted. I do ride off road and I choose not to change the ratio because of the off road riding, which is about 15% of my riding.
He will be surprised by the rise in touring speed.
If you want the exact revs u need, then look at the gear radio's of the exact model u want to emulate.
Chris...if your genuine.
If
I would like a cut of the profits in making these protectors.
Send to my account.
Chris
If u want to want to protect your cases , use a piece of 1.2 mm sheet steel , bent to the curve u need plus look for some bolt on points.
I would like a cut of the profits in making these protectors.
Send to my account.
Chris
I mean the crank to clutch ratio and the gear ratios per gear.
Don't blame the bike,
All info , everyone needs is available , plus all them boring reports by said journalists , who point out the faults.
Its been pointed out , that the bike is set up for Fire Trails.
So its it easy, buy the right engine and put it in...cheap enough!!!
It seems that this type of situation has been around for all time. Back in the 70's I had to change the gearing on my Yamaha scrambler for the same reason. Once you do it you won't be sorry. Just one tooth on my one at the time put my top end just where I needed it.
@JCW800 this is something you might want to checkout if you have not already seen it
https://www.chapmoto.com/blog/2011/...nging-your-sprockets-for-maximum-performance/
@JCW800 this is something you might want to checkout if you have not already seen it
https://www.chapmoto.com/blog/2011/...nging-your-sprockets-for-maximum-performance/
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Even my 1200 Tiger revs a bit high at highway speeds. I cannot mess with the final drive gearing due to it being shaft. Guess that's the way Triumph is designing them for some unknown reason. There is very little difference in RPM from 5th to 6th. Think they could have spread the ratio out a bit more to lower RPMs on the highway. Can't remember exactly, but think it's around 4200-4500 RPM @ 120 kph(75mph) for my bike.
This is the first time I have ever thought about this issue with a shaft drive but then I have only had one bike with a shaft in all my time riding.
I, too, have had only one shaft drive bike; and this is one reason I avoid them. On most of my past bikes, I have changed the ratios. I have not found the need to modify my current Tiger 800.
Hi. Changed front sprocket (JTF520.17RB - JT Sprockets Rubber Cushioned Front Sprocket JTF520RB, 525 chain, 17 teeth) to 17 teeth on mine 2017 T800 XCA recently. No problem. Lowered about 200-300 rpm on highest gear at 100-120 km/h.
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Ditto D . One size larger front is a nice change . Probably more like 3 or 4 hundred less revs at hiway speeds. Engine seems very relaxed with this gear , passing power still fine in 6 th and surprisingly good fuel mileage... BB
Of course the 47 rear will be almost the exact same result rpm wise as the 17 would be . Something that I not seen mentioned related to this subject is the difference in wear patterns of new sprockets with old chains . Unless the chain / sprocket set has very little mileage on it , introducing a new sprocket to the mix is not recommended.
I agree - new sprocket(s) = new chain and vice versa.
