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International Twinshock Association
Trials By Trials Riders For Trials Riders


Hunter...First Trials!


Caulkboy Stylin


Caulkboy section 1



 Baker Award Winner2008

Hold on George!


Honda-Honda 2 Ready for action!


End of an era....We don't think So!


Greeves, Cotton, James.....History lives Here!


Tiger Cubs...Still a favorite!


Latest Majesty


The Guru's Famous James


The Trialsrooster on a Chicken


Hockeyboy and the log! 


2015 ITSA National Champ Series Results

2018 ITSA Natonal Championship Series

Rounds 1 & 2- Sipapu, NM August 11th &12th

Rounds 3 & 4
- TTC Sequatchie, TN September 8th and 9th


Now for the regional schedules!

Southeast Regional Championship Series 2018

Round 1 - B&J's Ranch, Dickson, TN., November 5th, (2017)

Rounds 2 & 3 -  Chip Harts Ranch March 24th and 25th
Rounds 4 & 5 -  B&J Ranch May 5th and 6th

Round 6 &7- Trials Training Center September 8th and 9th  (ITSA National Championship Rounds)

Rounds 8  - Fearless Charlies Springville, TN October 13th 

Round 9 & 10- B&J's Ranch, Dickson, TN., November 3rd and 4th - B&J Racing cookout and bonfire
Round 11 -  Fearless Charlies Springville, TN. November 17th with the ITSA cookout and party to follow

Round 1 2019 - Fearless Charlies Springville, TN. November 18th





Mountain West Vintage Trials Assn. 2018 Series


Rounds 1 & 2 - San Ysidro, NM March 17th & 18th 
Rounds 3 & 4 - Cotopaxi, CO May 19th & 20th
Rounds 5 & 6 - Lakefork, NM June 23rd and 24th
Rounds 7 & 8 - Gunnison, CO July 28th & 29th
Rounds 9 & 10 - Sipapu, NM August 11th & 12th   (ITSA National Championship Rounds)
Rounds 11 & 12 - Casper, WY September 1st & 2nd

Rounds 13 & 14 - Haystack Mountain, NM October 20th & 21st





HomeSection no split design

Guidlines for No-Split Format (Also known as our "Scottish Format"). This format is the most preferred by ITSA.


Sections are designed and laid out matching the ability level of the rider and the capability of the machine to the terrain using single line sections.


Five degrees of difficulty of section design are used The sections are marked by letter designations(A,B,C,D,E). "A" being the hardest and "E" the easiest.


Five sections of each degree of difficulty are to be used.

At smaller regional events "E" sections may be dropped and only "A" thru "D" used.


Class and Ability Chart




     Intermediate             Novice      
 Modern Twinshock  

 A & B

 B &C

 C & D


 A & B

 B & C

 C & D


 B & C

 C & D

 D & E


Vintage Mono and Mono Shock machines ride the same sections as modern Twinshock sections.

Exhibition riders will ride any sections they are comfortable with.


Guideline for section difficulty.

A = Hard expert

B = Easy expert - hard intermediate

C = Easy intermediate - hard novice

D = Easy novice - hard novice on Pre-Historic machines

E = Easy novice on Pre-Historic machines