www.tigercubandterrier.com
  • Welcome
  • Introduction
  • The Story begins...
  • An Interview with Mr Turner
  • Model information
    • Terrier T15
    • Tiger Cub T20 >
      • 1954/55
      • 1956
      • 1957
      • 1958
      • 1959
      • 1960
      • 1961/62
      • 1963-on
    • Competition Cub T20C
    • Sports Cub T20S
    • Woods Cub T20W
    • Sports Lights Cub T20SL
    • Trials Cub T20T
    • Street Scrambler T20SS
    • Scrambler T20SR/T20SC
    • Trials & Scrambler TR20/TS20
    • Sports Home Cub T20SH
    • Mountain Cub T20SM/T20M
    • War Department (T20WD/T20M WD
    • Bantam Cub T20B
    • T20B Super Cub
  • Buyer's Guide
  • Resources
  • Technical
    • Machine Numbers
    • Gear Clusters
    • Front Forks
    • Front Fork Oil Change
    • Condensers
    • Finding T.D.C.
    • External Oil Filter
    • Lucas Energy Transfer
    • 12V Conversion
    • Fitting Indicators to a Tiger Cub
    • Fitting a Craven Luggage Rack
  • Your Stories
    • My Wee Cub
    • Denny's Terrier
    • A T20C Story
    • TR20 Cub Sorted
    • Saving Sylvia
    • My 1959 Tiger Cub
    • My First Restoration
    • Found in a Scrap Yard
    • My First Bike
    • Brand new out of the Box
    • On the Road after 40 years
    • First bike I ever Rode
    • The' Tarbuk' Conversion
    • A Tiger Cub in a Box
    • Aunt Tiny
    • Well-travelled Terrier
    • Mashooq's Tiger Cub
    • 48 Years with my Cub
    • Ready for the Arbuthnot
    • My Collection of Cubs
    • Mountain Cub and Cafe tales
    • My favourite Cub of all
    • A Cub in Norway
    • Beginning of a Terrier Restoration
    • An Ambush of Cubs
    • A T20C Cub (probably!)
    • A Moment Frozen in Time
  • Machines in Competition
    • Bonneville Speed Record
    • ISDT Success
    • Success in the Scottish
  • Welcome
  • Introduction
  • The Story begins...
  • An Interview with Mr Turner
  • Model information
    • Terrier T15
    • Tiger Cub T20 >
      • 1954/55
      • 1956
      • 1957
      • 1958
      • 1959
      • 1960
      • 1961/62
      • 1963-on
    • Competition Cub T20C
    • Sports Cub T20S
    • Woods Cub T20W
    • Sports Lights Cub T20SL
    • Trials Cub T20T
    • Street Scrambler T20SS
    • Scrambler T20SR/T20SC
    • Trials & Scrambler TR20/TS20
    • Sports Home Cub T20SH
    • Mountain Cub T20SM/T20M
    • War Department (T20WD/T20M WD
    • Bantam Cub T20B
    • T20B Super Cub
  • Buyer's Guide
  • Resources
  • Technical
    • Machine Numbers
    • Gear Clusters
    • Front Forks
    • Front Fork Oil Change
    • Condensers
    • Finding T.D.C.
    • External Oil Filter
    • Lucas Energy Transfer
    • 12V Conversion
    • Fitting Indicators to a Tiger Cub
    • Fitting a Craven Luggage Rack
  • Your Stories
    • My Wee Cub
    • Denny's Terrier
    • A T20C Story
    • TR20 Cub Sorted
    • Saving Sylvia
    • My 1959 Tiger Cub
    • My First Restoration
    • Found in a Scrap Yard
    • My First Bike
    • Brand new out of the Box
    • On the Road after 40 years
    • First bike I ever Rode
    • The' Tarbuk' Conversion
    • A Tiger Cub in a Box
    • Aunt Tiny
    • Well-travelled Terrier
    • Mashooq's Tiger Cub
    • 48 Years with my Cub
    • Ready for the Arbuthnot
    • My Collection of Cubs
    • Mountain Cub and Cafe tales
    • My favourite Cub of all
    • A Cub in Norway
    • Beginning of a Terrier Restoration
    • An Ambush of Cubs
    • A T20C Cub (probably!)
    • A Moment Frozen in Time
  • Machines in Competition
    • Bonneville Speed Record
    • ISDT Success
    • Success in the Scottish
www.tigercubandterrier.com
Gear Clusters
​Depending upon which specific model and what it was expected to be used for, Tiger Cubs were fitted with different gear clusters straight from the factory from wide ratio, standard ratio, close ratio and extra-close ratio. There was even an ultra close ratio set that could be supplied and fitted.
Picture
Picture
​

​To help you identify the gear-set in your machine should you need to, here are the figures for the number of teeth on the gears of each of the different clusters.
 
One thing to note is that the teeth on each set of gears irrespective of ratio (1st gear Mainshaft + 1st gear Layshaft, 2nd gear Mainshaft + 2nd gear Layshaft, etc.) add up to 45.
​Handy to remember if putting a gear cluster together from separate/spare/replacement parts.
​Wide Ratio
Mainshaft  (1st to 4th) 16T - 25T - 20T - 29T
Layshaft    (1st to 4th) 29T - 20T - 25T - 16T
 
Standard Ratio
Mainshaft  (1st to 4th) 16T - 25T - 20T - 28T
Layshaft    (1st to 4th) 29T - 20T - 25T - 17T
 
Close Ratio
Mainshaft  (1st to 4th) 16T - 25T - 20T - 27T
Layshaft    (1st to 4th) 29T - 20T - 25T - 18T
 
Extra-close Ratio
Mainshaft  (1st to 4th) 16T - 23T - 20T - 25T
Layshaft    (1st to 4th) 29T - 22T - 25T - 20T
 
Ultra-close Ratio
Mainshaft  (1st to 4th) 17T - 23T - 20T - 25T
Layshaft    (1st to 4th) 28T - 22T - 25T - 20T
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