The S&M Big Jumper 26 Inch Dirt Jumper Frame is a metallic BMX frame for 26” bikes, shown against a white background.

S&M Big Jumper 26 Inch Dirt Jumper Frame geometry chart with reach, stack, top tube, seat tube, angle, chainstay, wheelbase, bracket drop & fork offset for sizes 22–23.5.

The S&M Big Jumper 26 Inch Dirt Jumper Frame is a black metal frame with white graphics and a suspension fork, displayed side-on against a white background.

The S&M Big Jumper 26 Inch Dirt Jumper Frame is shown in metallic red with white logos on the head tube and seat tube, displayed from a side angle against a plain white background.

Close-up of the S&M Big Jumper 26 Inch Dirt Jumper Frame, highlighting its metallic welded joints and seat tube with disc brake mount, set against a white background.

A close-up of the S&M Big Jumper 26 Inch Dirt Jumper Frame in metallic green, highlighting the bottom bracket, chainstays, seat tube, and rear dropouts.

Description

S&M believe 20” bikes are the original Dirt Jumpers, and giving that moniker to 26” frames blows, but at the end of the day, all that really matters is the ride. The 26” BJ is designed to go fast and high, soak up bumps and brake better than its smaller counterparts. And unlike a smaller-rigid bike, a 26” bike with a suspension fork and disc brake not only roasts transitions almost effortlessly, it leaves riders in better condition to have just as much fun the next day.

- Geometry based on 100 – 120mm Suspension or equivalent rigid fork
- Headtube accepts 1.5” Tapered Steerer
- Disc size is 160mm with 0mm IS to POST mount adaptor

Raw Dog – This is Gloss Clear, same as a BTM frame and many other S&M/FIT parts. Gloss Clear is a transparent, clear polyester and has a high gloss finish.
Limousine Black – This is a small tweak on gloss black – same as Hoder BTM XL frame. Sample pictures are done in this shade of black. Keith Hartwell is currently riding this sample.
Satan Red (new colour) – This is a transparent dark maroon-red. This colour is a polyester top coat powder coat and has a high gloss finish. Very close to ATF XL Trans Burgundy but a little more red.
Gangrene (new colour) – Dark Trans Green.

Geometry
Top Tube Lengths - 22.5″, 23″
Rear End Length - 15.1″ Slammed
Head Tube Angle - 69°
Standover Height - 10″
B.B. Height- 12.6″ (.400″ Drop)
Seat Tube Angle - 73°
Head Tube - 120mm Tall Integrated 42/52 Style
B.B. Style - 73mm Euro BB
Brake Mounts - 160mm Disc with 0mm IS to POST mount adaptor
Dropouts - 3/8″ Slot, 135mm Spacing w/Integrated Tensioners
Seat Post Size - 27.2mm Post – 30mm Clamp
Weight - 6.15 lbs (22″ TT)
Max Tyre - 26″ X 2.25″ slammed (2.35″ pulled back a bit)
Max Sprocket - 30T standard chain line (32 with additional Spacers)