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650-750 Big Bore Kit
There is no need to justify why, you should buy this kit, although I actually do have a genuine reason like most other who have posted here. Just go out and buy it. I haven’t installed it yet, but it has everything you need. Looking forward to that first ride.

Triumph big bore kit
Order was shipped fast and packed nice.High quality UK made

Not yet
Hopefully in the next couple of weeks due to unexpected situations, however did open the box and everything is intact and I can’t wait

Awesome Upgrade
Excellent. Can’t imagine an easier way to go from a 650 to a 750cc motor.

Quick Shipping
This was well priced and arrived super fast! Have not yet installed. Lowbrow is a reliable source for old Triumph parts!

Decided to take the plunge.
My 1967 T120TT was showing low compression on one side (turned out 3 of the 4 compression rings were shattered). Figured why not go big or go home. Very nice kit, everything fit well. Excellent documentation. everything needed is included. Came with the wrong base gasket, but as has been my experience, the Lowbrow crew fixed me right up. Now my old Triumph runs like it's mad at the road. It's great. A++ to Lowbrow's customer service.

No Substitute for Cubic Inches
Opened the box and inventoried the parts, looks like all high quality parts. This looks like a straight forward installation. I can't wait to get started.

Best Service you can ask for
I am building a 1970 triumph and have ordered all my parts from Lowbrow. The quality is excellent and the speed of delivery to Australia is exceptional. I needed to rebuild the old engine and what better way to start was adding the bolt on big bore kit. Cant thank the team enough for making this custom build the easiest i have done. wish i had discovered them earlier.

Triumph 650 to 750 c.c. Big Bore Kit
Price point was great and the kit came to me well packaged. Everything I need cam ready to be installed. Lowbrow continues to be my go-to shop for everything I've needed.

750 Big Bore Kit
Great, This kit was a cost saver and motivated by Lowbrow's buying incentives, i.e.. discounts, knowledge and stellar customer service is 5 star. Thanks

Triumph Big Bore Kit
My 1967 Triumph Bonneville needed a fresh top end but after three earlier rebuilds it was time for a new cylinder barrel. If I had to get a new barrel, then why not upgrade to a 750. I ordered the big bore kit from Lowbrow and only days later it arrived. Everything included as promised and everything top quality. I can highly recommend the kit.

Top Quality. One kit more oomph.
Excellent British made kit. Building up a 67 Rickman . Basically a street legal motocrosser. Complete engine rebuild. This kit provides all the Piston/Cylinder related parts in one purchase. All designed to work together packed in one neat package with a boost in displacement. The bike will be loud and fast. This helps provide the fast. As always LOWBROW offered a fair price, FAST shipping and great technical and customer support. The online "how to's" are really valuable and informative. If my bride wants to know where the money went, I tell her ' I gave it to some Lowbrow'.

750 kit
Still haven’t put the bike together but I’m getting there. The kit seems good. I did not receive all the gaskets though. I only got the copper gasket nothing else. Wasn’t a big deal because I needed a complete gasket set anyways. Over all it seems like a good kit.

More Power
I got everything I need to change my 650 Triumph into a750

good
is a nice parts good packing 650 too750!!

LOWBROW CUSTOMS USA MANUFACTURING SCHOLARSHIPS
Here at Lowbrow Customs we believe strongly in supporting US manufacturing. We have created multiple annual scholarships, one with the Lincoln Electric Welding School and another with Tri-C (Cuyahoga Community College) for students in financial need who are pursuing workforce training. From TIG welding to machining, this is the backbone of manufacturing in the United States. Want to learn more?