Mommy’s Lil’ Monster 24″

Lil Monster
Frame Detail MOM


The Lil’ Monster Designed and built in Orange County, Ca. and perfect for smaller riders or just those who prefer the flickable feel of 24’s.


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The Lil’ Monster Designed and built in Orange County, Ca. and perfect for all the smaller riders out there or just those who prefer the flickable feel of 24’s. Handmade with our own BlkMrkt Black Lite Heat Treated Chromoly tubeset, locally manufactured BB’s and headtubes, laser cut signature “MOM” bridges, TT/DT tube gussets, drop-outs & internally butted seat tube w/ integrated seat collar.

We let you decide the form and function of your Lil’ Monster. Custom built for you with your choice of size, color head tube and BB style. Go with our Traditional 42mm head tube (1-1/8″ straight forks) or the new 44mm head tube for tapered forks. Complete your frame with a 73mm Euro or 73mm Mid BB. Your frame will be built with the proper tubing for your size and weight and powder coated in the color you choose. Colors can be found at

At 4.5lbs. ( 20.5″) it’s the smallest and lightest BlkMrkt to date. Ride one and you’ll know why Black Market’s signature design, style and geometry are often imitated but the ride is never duplicated!


Lil’ Monster Sizing Info SM MD LG XL XXL> XXXL 4X 5X
Top Tube Length (Actual)  20.5″/521mm 21″/534mm 21.5″/546mm 22″/559mm 22.5″/572mm 23″/584mm 23.5″/597mm 24″/610mm
Reach 356mm 369mm 382mm 395mm 407mm 420mm 432mm 445mm
Stack 533mm 533mm 533mm 533mm 533mm 533mm 533mm 533mm
Effective Top Tube 540mm 553mm 565mm 578mm 590mm 604mm 616mm 628mm
Wheelbase 962mm 975mm 987mm 1000mm 1013mm 1025mm 1038mm 1050mm
Frame Specs
Head Angle 71
Seat Tube Angle 71
Head Tube Length 117mm
BB Drop 3mm
Seat Tube Length 11″/280mm
Fork A To C 471mm
Fork Offset 42mm
Headset (Top) 44mm Zero Stack or 42mm Semi-integrated Traditional HT
Headset (Bottom) 44mm External Cup or 42mm Semi-integrated Traditional HT
BB Shell 73mm Threaded or Mid
Rear Brake Mount 160mm IS Mount
Rear Axle 10 x 135mm Horizontal
Front Derailleur Style Nope
ISCG Tabs Optional
Seatpost Dia. 27.2mm
Seat Clamp Integrated
Max Chainring Size 30t
Max Tire Size 24″x 2.5″


Colors: Flat Black, Gloss Black, Military Green or Clear Over Raw Tubing (NOT POLISHED) with multiple color sticker pack… Also A full range of custom colors or hand polished tubing with clear available for $100.00

Additional information

Weight 8 lbs
Dimensions 40 × 10 × 10 in

4X-23.5", 5X-24", LG-21.5", MD-21", SM-20.5", XL-22", XXL-22.5", XXXL-23"


Clear Over Raw, Custom Color (+ $100), Flat Black, Gloss Black, Polished Raw With Clear (+ $100)

Bottom Bracket Type

73 mm Euro, 73 mm Mid

Drop Out Size

10 mm x 135 mm, 14 mm x 135 mm

SKU: BM-FR-LM. Categories: ,