Unfortunately, because all of our frames and hardtails are made by David Bird, we cannot offer any one-off hardtails or frames for different make and model motorcycles. We may add other makes and models to the lineup eventually, but for now the only frames we make are listed below.

Currently we offer weld on hardtails and full custom frames for the BSA A10 and BSA A65, bolt-on hardtail sections for Triumph Pre Units in a swingarm frame, full frames for Unit Triumph motorcycles (1963 on up), bolt-on hardtails for Unit Triumphs 1963-1970 and weld-on hardtail for OIF (Oil-In-Frame) Triumphs 1971 on up.

'Unit' refers to unit Triumphs or BSAs. The 'unit' bikes have a motor and transmission that is one piece. Earlier 'Pre Units' have a transmission that is a separate piece from the engine. Unit 650 c.c. Triumphs were 1963 and later. The unit bolt-on hardtails also fit pre unit duplex frames, '59 - '62, which are characterized by the double-downtubes at the front of the frame.

Triumphs 1971 and newer are known as OIF or Oil-In-Frame models. They have a much thicker frame backbone and seat post, which serves as the oil tank. These OIF frames are different than the earlier styles and you cannot use a bolt-on hardtail on them. The rear section of the frame has to be cut and a weld-on hardtail welded in place in a jig by a professional welder.

Stretch refers to the length of the bike, based on the measurement from axle-to-axle on a stock bike. So a 4" stretch gives you 4" more length axle-to-axle than on your stock bike. If you go with a 0" stretch you will NOT have room to mount an oil tank inside the hardtail between the seat post and the fender/wheel. You would have to use a stock-type or side mounted oil tank.

With a 2" stretch it gives you more room and allows you to use an approximately 5" diameter oil tank. A 4" stretch allows even more room and you can do a bit larger oil tank or still mount a 5" diameter tank with a little more room to spare so it isn't so tight. A 4" stretch gives you a nice line from the backbone of your stock front frame section right down to the rear axle, it keeps it pretty much one continuous line.

You can fit up to a size 140 tire in our hardtails or full frames without a problem. A wider tire will physically fit in the frame but you will have an issue in trying to keep the motor sprocket and the rear wheel sprocket in-line, and to keep the chain from eating at the side of the tire.

Why does it come up with 'Free Shipping' when checking out? It isn't 'free shipping', if you read the description for the frames it says: "These are custom made-to-order and due to demand currently take 4 - 5 weeks to complete and ship. They ship UPS oversize item, average shipping price in the U.S. is $36.00. We ship internationally via USPS Priority International. We will contact you with the actual shipping cost which can be paid via paypal or credit card over the phone. When your frame ships we will email over your UPS tracking info."

Because each different frame weighs and measures different, the shipping is different. So you pay $249 for your frame and then we calculate actual shipping cost based on your order and charge that later on before it ships. The best way to order is direct through the site, then we can figure shipping and give you the actual shipping cost.

Below are some sample shipping rates for international hardtail orders for your reference.