Midnight Engineering Series  - 

Triumph 675 Shift STAR

At 2014 Laguna WSB round:      Virtually Eliminated missed shifts.

In 1-2 hours, you can make your shift mechanism work 25% quicker - was 60ms - now 45ms.
To AMA Pro levels.

25% more full throttle time on upshifts.
That's near 10 additional secs of new full power time
 over a 23 lap race, assuming 30 upshifts per lap.

Virtually eliminate missed upshifts and false neutrals.
Improve downshifting into low speed corners.
Find neutral easier.
Decrease the 1-2 "clunk"
 Decrease shift time 20% to 25%.
Lower ET and laptimes.
Only takes 1-2 hours to install.

Legal for AMA racing.

This is the kit that makes the difference.
Track and street.

Feedback

     Hi Marc, Raul just came by the warehouse on a Triumph 675. He said he just put the shift star and spring in and asked if I wanted to test it. I took it for a ride around the block and was amazed at how quick and smooth the shifting was. After running dozens of these on the dyno at AMA and CCS/ASRA races, I have never tested one of these that shifted so nicely. Big improvement !

Leigh Thomas / Factory Pro Trackside Dyno Operator

     On a scale of 1-10? It's an 11.

Bob Dragich

     I want one.

Raul Meono / Factory Pro R&D

     I bought a 2013 Triumph 675R in March of 2013 and in one year and two months it has over 19,000 miles on it. In that time it has performed nearly flawlessly.

I remember missing just two shifts, both on the upshift between first and second gears. I attributed these to not enough pressure being placed on the shift lever. Other than that, shifting has been smooth and predictable.

There was also a distinct clunk when the gears engaged on the upshift between first and second. There was never any problem, but it caused me to prefer to use the clutch lever upshifting between first and second, and the quick-shifter from second through sixth gears after that.

I recently had the Factory Pro Tuning Components shift star and shift spring installed. Shifting between second and sixth gears remained smooth and predictable, but with the Factory Pro star and spring, each shift is much more positive, with a slight click that could be felt through the shift lever.

The major difference was in the upshift between first and second gears. The clunk was completely gone, and the shift was just as smooth and positive as those between all the other gears.

Downshifts are also more positive, with the reassuring click. None of the shifting with the Factory Pro components could be described as heavy, and little additional pressure is required on the shift lever.

The Factory Pro Tuning Components Shift Star and shift spring are two of those things that you don'tt think you need, until you get them installed.

Bob Dragich

Motorcycle journalist, photographer and advertising consultant

Notes on external quickshifters

When you look at quickshifter "kill" duration at 55ms, every upshift you are losing about 1/20th a second. Do 20 upshifts and you lose 1 full second of applied power. 100 upshifts and that's 5 seconds that power is "killed" while the QS is waiting for the shift to complete.

If you quicken the shift mechanism by 10%, you decrease the shift kill time by 10% and that's 1/2 second in 100 shifts - and we could all use an extra 1/2 second....... :-)

Of course, I can't guarantee that you'll drop your lap times by 1/2 sec per 100 upshifts - but - wouldn't it be mentally less effort and cool to make missed upshifts and downshifts virtually disappear?

Note about quickshifter shift kill time:
The STAR kit shifts QUICKER.
You must set your aftermarket adjustable quickshifter kill time 10mm to 15ms quicker or the shifting will be clunky on the track.
Example: With stock parts, you needed 60ms. With our parts you need 45ms (or thereabouts)

However, the kit works well with the standard 675 quickshifter timing.

Installation:
1 -2 hours - requires clutch basket assembly R&R to install

Available from Power Tripp and direct from Factory Pro. 

800 869-0497