New gearbox 19-tooth sprocket? - Page 3 - Triumph Forum: Triumph Rat Motorcycle Forums
Twins Talk Discussion of Hinckley Triumph Twin related matters and topics.
Sponsored by: National Powersports Distributors

LinkBack Thread Tools Display Modes
post #21 of 30 (permalink) Old 03-13-2012, 03:37 AM
Senior Member
Formula Extreme
Main Motorcycle: T100
Dan McGrath's Avatar
Join Date: Sep 2011
Location: New Jersey
Posts: 889
I appreciate that there are small percentage changes in speedo readings with a up/down gear change but at 20, 30/40 and upwards to 75 MPH both Radar and GPS confirm that my odometer is accurate. Certainly close enough for the local and State Troopers liking.

BTW Teologie, thank-you for the links, very good information.
Dan McGrath is offline  
Sponsored Links
post #22 of 30 (permalink) Old 03-13-2012, 07:41 AM
Senior Member
Formula Extreme
Main Motorcycle: 2008 Thruxton 900.
BluprintZ's Avatar
Join Date: Oct 2009
Location: Bangor, North Wales. UK.
Posts: 949
Other Motorcycle: 1954 Norton 88 Dominator.
I also fitted the 19T sprocket not long after i bought the bike.
I wasn't too happy with the way it was revving at high speed, it felt like i was hammering the engine, i know it wasn't but it felt so.
I think it's all down to personal choice and the roads you ride, i find it cruises much happier on the motorways with the larger sprocket.

G ; )

life's a long song...
BluprintZ is offline  
post #23 of 30 (permalink) Old 08-23-2012, 09:38 PM
New Member
Production 125
Main Motorcycle: 12 Scrambler
Join Date: Jul 2012
Location: San Francisco
Posts: 6
With the 19T , what RPM are you spinning at 70mph?
NeilSea is offline  
post #24 of 30 (permalink) Old 08-24-2012, 12:11 AM
Lifetime Premium
Site Supporter
Formula Extreme
Main Motorcycle: 2006 Thruxton CaspianBlue
Join Date: Jan 2011
Location: Southern California
Posts: 546
Other Motorcycle: HDtouring Hondaoffroad MX
Extra Motorcycle: YES...
Originally Posted by NeilSea View Post
With the 19T , what RPM are you spinning at 70mph?
ABOUT 500 rpm less than a 18 tooth sprocket
Von Dutch is offline  
post #25 of 30 (permalink) Old 08-26-2012, 08:11 AM
Senior Member
Main Motorcycle: 2012 Triumph Scrambler
Easy10pins's Avatar
Join Date: Jun 2012
Location: Charleston, SC
Posts: 225
I have a 19t on my Scrambler. Most of my riding is commuting daily to school and it's perfect for morning and afternoon traffic. I never need to use 5th gear in normal city riding. I really haven't noticed any deficit in acceleration.

Everyone is fast in a straight line.
Easy10pins is offline  
post #26 of 30 (permalink) Old 08-26-2012, 08:43 AM
Senior Member
Main Motorcycle: Triumph Street Triple
Johnnystriple's Avatar
Join Date: May 2012
Location: Owensboro, Ky.
Posts: 1,252
Other Motorcycle: 2012 Bonneville Standard
Extra Motorcycle: 2008 Harley Street Glide
I just got my Bonny and I'm considering a 19t myself. After the first 100 miles I've noticed that the motor seems to not be revving as high as it did under the first 100 miles. I was riding 35 mph in 3rd but now I'm cruising at that speed in 2nd and it doesn't seem as revvy.
Johnnystriple is offline  
post #27 of 30 (permalink) Old 08-26-2012, 08:53 AM
Senior Member
Main Motorcycle: '10 Thruxton
Join Date: Oct 2010
Location: Redlands, California USA
Posts: 392
Very happy with my 19T on my 2010 Thrux. Much more pleasurable around town and on the freeway; the bike makes plenty of torque and I don't think it hurts performance for me in the mountains as I'm not an aggressive rider. It basically made the bike into what I expected the Triumph twin experience to be like.
Whathethrux is offline  
post #28 of 30 (permalink) Old 08-26-2012, 11:56 AM
Senior Member
Formula Extreme
Join Date: Jan 2012
Posts: 514
19T revs / speed

NeilSea - "With the 19T , what RPM are you spinning at 70mph?"

Indicated speed in 5th gear.

3500 rpm = 62 mph
4000 rpm = 70 mph

3500 rpm is useful as it's where maximum torque kicks in. The engine's running sweetly, economically, and urges forward strongly for overtaking.

Having tried 17, 18 and 19 T sprockets I've found the 19 to be more relaxed and the most suitable for my style of riding,
At the end of the day it comes down to personal preference, weight carried and the terrain.
denbow is offline  
post #29 of 30 (permalink) Old 12-12-2012, 03:57 PM
Grand Prix 250
Main Motorcycle: 2006 Bonneville T100
Join Date: Oct 2012
Location: Rocklin. CA
Posts: 54
Other Motorcycle: Yamaha Warrior 1700
Extra Motorcycle: Yamaha RZ350
Smile 18T VS 19T Front Sprocket -- The Winner Is ...... !

I have two identical 2006 Triumph Bonneville T100's; one with an 18 tooth sprocket and the other with a 19 tooth sprocket.
After riding both for a while I prefer the 19 tooth because of the more relaxed rpm's at Freeway speeds here in California.
The 18 tooth is nice if almost all of my riding is on surface streets because there is slightly less tendency to have to shift and the engine feels like it has slightly more torque.
Can't say I notice much difference in miles per gallon because the miles vary so much in where the bikes are ridden each time they go out for a spin.
If I had only one T100 I would definitely choose the 19 tooth gearing.
49erx2 is offline  
post #30 of 30 (permalink) Old 12-12-2012, 04:46 PM
Senior Member
Formula Extreme
Join Date: Jan 2012
Posts: 514
+1 ....It all boils down to horses for courses !!!
denbow is offline  
Sponsored Links

Quick Reply

Register Now

In order to be able to post messages on the Triumph Forum: Triumph Rat Motorcycle Forums forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Please enter a password for your user account. Note that passwords are case-sensitive.


Confirm Password:
Email Address
Please enter your valid email address, that can receive an automated confirmation message. Otherwise, you won't be able to gain full access.

Email Address:


Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.

Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode

Similar Threads
Thread Thread Starter Forum Replies Last Post
Thruxton - 16 tooth or 17 tooth front sprocket? bpbrownengineer Club Cafe' 23 11-06-2014 03:58 PM
New gearbox 19-tooth sprocket? ogri45 Twins Talk 1 01-13-2012 12:00 PM
Need 17 tooth sprocket Wheeltrax Daytona Deliberations 0 09-10-2010 02:05 AM
18 Tooth Sprocket Bigman Twins Technical Talk 8 11-11-2006 05:43 PM

Posting Rules  
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are On

For the best viewing experience please update your browser to Google Chrome