The S&M THD Street Frame, in pink, is set against a white background and highlights its triangular structure with attachment points for additional components. Its heat-treated dropouts provide enhanced durability, and the design maximizes standover height for a comfortable riding experience.

The S&M THD Street Frame, featuring a triangular design and heat-treated dropouts, is displayed on a white background, highlighting its robust street frame character.

The S&M THD Street Frame is a steel BMX street frame with a glossy finish, revealing its entire structure including the head tube, ThermalX downtube, and heat-treated dropouts. The frame includes the top tube, downtube, seat tube, chainstays, and seat stays, all presented against a white background.

Introducing the S&M THD Street Frame: a green BMX bike frame showcasing a ThermalX downtube, highlighted with yellow and black graphics on the head tube for enhanced style. This street frame is equipped with heat-treated dropouts, guaranteeing durability and performance for all your urban adventures.

Description

The THD is S&M's updated Holy Diver. It started life as an all-around frame and has evolved into their most street-specific model, with 1/4" thick, compact, heat-treated dropouts that offer exceptional strength and ample peg clearance. The taller head tube reduces the need for extra stem spacers, so the front end looks cleaner and feels more solid.

THD stands for Tall Holy Diver, and the 9.25" standover is set to sit more proportionately with that taller head tube. S&M have also spread the top and down tubes apart for added stability and added a thicker .049" straight-gauge ThermalX down tube to resist denting. All brake mounts have been removed for a sleeker look, and Hoder designed new stickers to finish it off.

Features

S&M's most street-specific frame. An updated Holy Diver, reworked from an all-around frame into one aimed squarely at street riding.
Quarter inch heat-treated dropouts. Compact 4Q-Baked dropouts with 14mm slots give exceptional strength and leave ample clearance for pegs.
Taller head tube, cleaner front. The 5" integrated head tube cuts the need for extra stem spacers, so the front end looks and feels more solid.
Thicker ThermalX down tube. A .049" straight-gauge down tube resists denting, and the top and down tubes are spread apart for added stability.
Brakeless by design. All brake mounts have been removed for a sleeker look, with a 9.25" standover matched to the taller head tube.

Specifications

Sizes: 20", 20.25", 20.5", 20.75", 21" top tube
Chainstay: 12.7" to 13"
Head tube angle: 75.5°
Seat tube angle: 71°
Standover: 9.25"
Bottom bracket height: 11.7"
Bottom bracket: Mid
Tubing: ThermalX, thicker .049" straight-gauge down tube
Dropouts: 14mm slot, 4Q-Baked, 1/4" thick heat-treated
Brake mounts: None
Head tube: 5" integrated (45°/45°, 41.8mm)
Seat tube: 1" (25.4mm) seat post
Seat clamp: Investment cast
Weight: 2.31 kg

S&M THD Street Frame

Name: S&M THD Street Frame
Brand: S&M
SKU: SMFR022-04-GRN
Price: 1399.99 AUD
Availability: InStock

Brand: S&M SKU: Click to copy the SKU and show the pick location

$1,399.99 AUD

Or 4 payments of $349.99 AUD with

Colour - Green

Top Tube Length - 20.75

Frames are sized by top tube length. Start with your height, then let riding style decide where in the range you land.

Rider height	Top tube
147 to 157cm	19.75 to 20.25"
157 to 168cm	20 to 20.5"
168 to 175cm	20.25 to 20.75"
175 to 183cm	20.5 to 21"
183 to 190cm and up	20.75 to 21.5"

The height bands overlap on purpose. If you land in two of them, riding style breaks the tie: longer for flow, trails and transitions, shorter for technical street and park. Plenty of riders, pros included, deliberately ride longer than a chart suggests.

How to measure

Top tube is measured from the centre of the seat tube to the centre of the head tube, so it is not the length of the tube you can see. Measure your current frame that way and compare.

Size up for stability through trails and transitions.
Size down if you want the bike quick and twitchy for spins and grinds.
Top tube is fixed once you buy, but chainstay length, stem length, fork offset and bar position all change how the built bike feels.

Not sure? Tell us your height and how you ride, and we will tell you what we would put you on.

Read the full buying guide