America/ Speedmaster Big Bore Kit - Triumph Forum: Triumph Rat Motorcycle Forums
Cruisers - America, Speedmaster Cruiser chat for America and Speedmasters

LinkBack Thread Tools Display Modes
post #1 of 4 (permalink) Old 12-17-2009, 10:59 AM Thread Starter
Senior Member
Main Motorcycle: Anything Triumph
RickyT's Avatar
Join Date: Sep 2004
Location: Newington, CT
Posts: 355
Send a message via AIM to RickyT
America/ Speedmaster Big Bore Kit

Is there such a thing? How much? Where can I get one? is it worth it?

As a child I would never look before I would leap. Things are different now, but I still leap.
RickyT is offline  
Sponsored Links
post #2 of 4 (permalink) Old 12-17-2009, 11:28 AM
Grand Prix 250
Harald73's Avatar
Join Date: Oct 2007
Location: Hellsinki, Finland
Posts: 47
1. There are a few different ones.
2. Depends where and what you buy. Doesn´t come cheap. Someone has to install it too.
3. KVG (Ask the f.cking Google). Hint or
4. Some (the few that have it) say it´s well worth it. I`m thinking of buying one when I feel like the motor needs big enough service. Not that I have money for one now anyway.
Harald73 is offline  
post #3 of 4 (permalink) Old 12-17-2009, 01:48 PM
Senior Member
Formula Extreme
Main Motorcycle: 05 speedmaster - black
Join Date: Sep 2005
Location: Wisconsin
Posts: 779
Other Motorcycle: 2010 Thunderbird - silver
Extra Motorcycle: 2014 thruxton - black
more options

if you are at all handy this is a nice DYI project. If not, have a pro do it.

how too link

is it worth it, I think so, but it depends on what you want and how you ride.

see my wicked black speedmaster
904cc, 12:1 JE racing pistons, thunderbike cams, ported and polished head, scepter pipes, 39mm FCRs.
mag10 is offline  
post #4 of 4 (permalink) Old 12-19-2009, 09:30 AM
Senior Member
Main Motorcycle: 12 Rocket Roadster
Gregger's Avatar
Join Date: Apr 2007
Location: Northern, Ontario
Posts: 299
Other Motorcycle: 03 America

Similar question asked on the Bonneville America Forum. Interesting links provided.

Can't wipe this smile off my face!!!!
Gregger is offline  
Sponsored Links

Quick Reply
All posts must adhere to Forum Rules

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
Speedmaster Big Bore Kit TriumphJohnny Air Cooled Twins Technical Talk 27 05-25-2013 04:34 AM
America vs Speedmaster Pauljo Cruisers - America, Speedmaster 5 10-15-2010 08:16 PM
Speedmaster vs America Dragonsan Air Cooled Twins Talk 20 03-21-2008 10:53 AM
america or speedmaster TwinVee2 Air Cooled Twins Technical Talk 11 12-02-2007 10:28 PM
Big Bore kit for Bonnie America AncientScotty Air Cooled Twins Talk 0 01-12-2006 10:21 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