st – Grips Bikes https://www.gripsbikes.co.uk Grips Sat, 22 Aug 2026 13:48:16 +0000 en-GB hourly 1 https://wordpress.org/?v=6.8.8 https://www.gripsbikes.co.uk/wordpress/wp-content/uploads/2022/11/cropped-Grips-g-ico-1-32x32.png st – Grips Bikes https://www.gripsbikes.co.uk 32 32 Mafia 29 Bomma ST Chrome https://www.gripsbikes.co.uk/shop/mafia/mafia-29-bomma-st-chrome/ https://www.gripsbikes.co.uk/shop/mafia/mafia-29-bomma-st-chrome/#respond Sat, 22 Aug 2026 13:45:37 +0000 https://www.gripsbikes.co.uk/?post_type=product&p=109761 MAFIABIKES BOMMA 29 STEEL

The bike that helped start a movement is back.

The all-new Bomma 29 stays true to the original formula that made it a favourite in the culture, but now comes upgraded where it matters most. We’ve fitted a powerful Shimano MT200 hydraulic rear brake for improved control at balance point, switched to a freewheel rear hub for ease of upgrades and added integrated peg mounts to the rear dropouts so you can push combos without damaging rear axles!

Built around the same proven steel frame and wheelie-specific geometry, the Bomma steel delivers a huge balance point, predictable handling and the durability to take daily street abuse.

Whether you’re learning your first wheelies or smashing combos like a pro, this is a bike designed by riders who live the culture and know exactly what you need.

SPECIFICATION

More Information
(A) Top tube length 605MM
(B) Head tube length 105MM
(C) Standover 773mm
(D) Reach 439MM
(E) Stack height 583MM
(F) Bottom Bracket 312.5mm
Geometry diagram
Geometry
Specs
Frame Bomma 29 2026 High Tensile single speed
Forks Bomma 29
Handlebars Bomma 2 piece W762mm x H168mm
Grips Mafia 2026 Mushroom grip
Headset 1 1/8” External – Unsealed bearings
Stem Mafiabikes 2026 forged topload – 50mm reach
Pedals Mafia bike plastic pedals
Saddle Mafiabikes Wheelie seat – Railed
SEATPOST Ø25.4mm micro adjust alloy
Seat Clamp Ø28.6mm External QR
Cranks 170mm 4130 chromoly 19mm 8 spline heat treated
Chainring/sprocket front 32t Steel Sprocket, BMX Fitment
Sprocket/cassette rear 16t Freewheel M30 x 1mm
Tyre Front Lagos Snakeskin “S” Super Soft Compound 27.5″ x 2.5″
Tyre Rear Lagos Snakeskin “S” Super Soft Compound 27.5″ x 2.5″
Sprocket 32t Steel sprocket
Front hub Alloy shell, 3/8″ axle, sealed bearings
Rear hub Alloy shell, 3/8″ axle, Threaded Freewheel, Fully sealed bearings, Disco
Rim front 27.5″ 30mm Mafia 2026 Wide low profile double wall alloy 36h
Rim rear 27.5″ 30mm Mafia 2026 Wide low profile double wall alloy 36h
Brake Front Side pull cable brake (supplied in roadkit)
Brake Rear Shimano – hydraulic disc brake 160mm rotor
Tech
Weight (lbs) 35.000000
BB type 73mm ISO Thread
Headset type 1 1/8” external
Rear axle/hub spacing 135mm
Max tyre width rear 66mm / 2.6″
Seatpost/seatclamp Ø25.4mm post Ø28.6 seatclamp
Front axle/hub spacing 100mm
Frame construction and details High tensile steel single speed frame, peg mount integrated dropouts, threaded BB
Road kit Included
]]> https://www.gripsbikes.co.uk/shop/mafia/mafia-29-bomma-st-chrome/feed/ 0 Mafia 29 Bomma ST Red https://www.gripsbikes.co.uk/shop/mafia/mafia-29-bomma-st-red/ https://www.gripsbikes.co.uk/shop/mafia/mafia-29-bomma-st-red/#respond Sat, 22 Aug 2026 13:44:10 +0000 https://www.gripsbikes.co.uk/?post_type=product&p=109689 MAFIABIKES BOMMA 29 STEEL

The bike that helped start a movement is back.

The all-new Bomma 29 stays true to the original formula that made it a favourite in the culture, but now comes upgraded where it matters most. We’ve fitted a powerful Shimano MT200 hydraulic rear brake for improved control at balance point, switched to a freewheel rear hub for ease of upgrades and added integrated peg mounts to the rear dropouts so you can push combos without damaging rear axles!

Built around the same proven steel frame and wheelie-specific geometry, the Bomma steel delivers a huge balance point, predictable handling and the durability to take daily street abuse.

Whether you’re learning your first wheelies or smashing combos like a pro, this is a bike designed by riders who live the culture and know exactly what you need.

SPECIFICATION

More Information
(A) Top tube length 605MM
(B) Head tube length 105MM
(C) Standover 773mm
(D) Reach 439MM
(E) Stack height 583MM
(F) Bottom Bracket 312.5mm
Geometry diagram
Geometry
Specs
Frame Bomma 29 2026 High Tensile single speed
Forks Bomma 29
Handlebars Bomma 2 piece W762mm x H168mm
Grips Mafia 2026 Mushroom grip
Headset 1 1/8” External – Unsealed bearings
Stem Mafiabikes 2026 forged topload – 50mm reach
Pedals Mafia bike plastic pedals
Saddle Mafiabikes Wheelie seat – Railed
SEATPOST Ø25.4mm micro adjust alloy
Seat Clamp Ø28.6mm External QR
Cranks 170mm 4130 chromoly 19mm 8 spline heat treated
Chainring/sprocket front 32t Steel Sprocket, BMX Fitment
Sprocket/cassette rear 16t Freewheel M30 x 1mm
Tyre Front Lagos Snakeskin “S” Super Soft Compound 27.5″ x 2.5″
Tyre Rear Lagos Snakeskin “S” Super Soft Compound 27.5″ x 2.5″
Sprocket 32t Steel sprocket
Front hub Alloy shell, 3/8″ axle, sealed bearings
Rear hub Alloy shell, 3/8″ axle, Threaded Freewheel, Fully sealed bearings, Disco
Rim front 27.5″ 30mm Mafia 2026 Wide low profile double wall alloy 36h
Rim rear 27.5″ 30mm Mafia 2026 Wide low profile double wall alloy 36h
Brake Front Side pull cable brake (supplied in roadkit)
Brake Rear Shimano – hydraulic disc brake 160mm rotor
Tech
Weight (lbs) 35.000000
BB type 73mm ISO Thread
Headset type 1 1/8” external
Rear axle/hub spacing 135mm
Max tyre width rear 66mm / 2.6″
Seatpost/seatclamp Ø25.4mm post Ø28.6 seatclamp
Front axle/hub spacing 100mm
Frame construction and details High tensile steel single speed frame, peg mount integrated dropouts, threaded BB
Road kit Included
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