Gearbox parts

[Hooleymyster]

How many miles on the clock to do this damage?

22000

 

[SMLWNKR]

I’ve got to the gearbox and found the damaged gears. This is a low mileage 2014 roadster. Has anyone ordered the parts before ? Where’s the best place and do Triumph do a kit or stronger gears. It may even be the forks didn’t fully engage the gear due to bending possibly ,not into the depths of it yet.

Many thanks

Same as Gerald, look hard at Robinson Industries in New York. Their prices are good and the repairs and the modifications on my 06’ are outstanding. Just send them the input and output shafts assembled as they are and you will get back two shafts ready to drop in. Check their website.

 

[Mike Rocket]

22000

It's a bit worrying. I thought the gearbox problems were solved by 2014. Triumph Rockets seem to have the crappiest gearboxes of all Motorcycle brands.

 

[Hooleymyster]

Same as Gerald, look hard at Robinson Industries in New York. Their prices are good and the repairs and the modifications on my 06’ are outstanding. Just send them the input and output shafts assembled as they are and you will get back two shafts ready to drop in. Check their website.

Thanks, but I’m in the uk so going through world of Triumph. Ordering the gears, circlips, selector forks etc and most items on the way.

 

[Hooleymyster]

It's a bit worrying. I thought the gearbox problems were solved by 2014. Triumph Rockets seem to have the crappiest gearboxes of all Motorcycle brands.

It is, and as expected Triumph are not interested in assisting, even in parts alone

 

[Mike Rocket]

It is, and as expected Triumph are not interested in assisting, even in parts alone

I am concerned that if my 2014 R3 Gearbox or Final drive was to break in the future would i still be able to get parts or would the bike be scrap? I don't want to sell it as i like the look and size of it.

 

[SMLWNKR]

All were in place. I have removed the gears and circlips were all in place and located

Then, how did your gears get chewed up? You can be absolutely sure the Circlips popped out of the grooves which allowed the gears to shift out of position, and then the circle clips popped back into the grooves at some later time. It would be worth your time to have the circle clip grooves modified to except a stronger wider circle clip.

 

[TURBO200R4]

Then, how did your gears get chewed up? You can be absolutely sure the Circlips popped out of the grooves which allowed the gears to shift out of position, and then the circle clips popped back into the grooves at some later time. It would be worth your time to have the circle clip grooves modified to except a stronger wider circle clip.

plus 1

 

[Hooleymyster]

Then, how did your gears get chewed up? You can be absolutely sure the Circlips popped out of the grooves which allowed the gears to shift out of position, and then the circle clips popped back into the grooves at some later time. It would be worth your time to have the circle clip grooves modified to except a stronger wider circle clip.

I don’t know, that’s why I’m asking on a forum. The only thing I’m sure of is how I found them.

 

[SMLWNKR]

I don’t know, that’s why I’m asking on a forum. The only thing I’m sure of is how I found them.

Not trying to incite you. The only way two unintended gears can engage is if they move out of position while other gears are engaged/engaging. The circlips are the culprit. After the damage is done, the gears bang the clips back into the groove. The side load on the shift forks is not enough to get them bent prior to the gear damage, but the gears damage may bend the forks in the process of getting chewed up. So, the solution to prevent future mayhem, new gears and shift forks. You can go back to stock circlips, but it just gets you back to the point you were prior to the grinding. Improving on the strength of the circlips/groove is insurance they will more likely stay where they are intended to be. You can send the new gears you have bought to Robinson and they will use them for the rebuild. I understand it’s an international shipment for you, but I can say my transmission is noticeably smoother and definitely stronger than before. Picture included to show you where I have been. My improvements involved the improved billet 4th gear, wider/stronger clips/grooves, and back cut teeth on the gear dogs. My total cost with Robinson’s work and my new shift forks and gaskets for the repair was under $800. 2nd option mentioned before, find a local drag racing motorcycle transmission shop. They will know about back cutting dogs and how to strengthen the system