ROCBIRD JUNIOR M Kup on-line
WHEEL SIZE
27.5"/26"
MATERIAL
AL 6061-T6
COLOR
Prism Blue
Description

The kids are alright, and we came up with sweet tooth builds for the promising riders! We understand smaller or "just starting" rippers who demand the best bike birthday money can buy. Rocbird and its Junior versions have updated frame aesthetics as enduro/singletrack machines to make climbs easier and descents even more playful. The new progressive Horst suspension design has been updated for trail geometry, and the mullet wheels setup provides a superb track feeling!

* Rocbird Junior frames are available in options with or without shocks. Frame without shocks can be used for enduro or trail purposes, determined by the size of the used shock.

Geometry for Coil or Air shock
Geometry for Coil or Air shock
Geometry for Coil or Air shock

The Rocbird's modern progressive geometry allows for a bottomless feel at the end of the curve, accommodating both spring and air shocks. Each type of shock has its advantages, so the choice depends on personal preference and how the rider prefers their suspension. We aim to accommodate Rider Your Way in all aspects.

Progressive suspension
Progressive suspension

The Rocbirds' high leverage ratio at the start of travel helps overcome friction, making the initial part of the ride smooth. Towards the end of the stroke, increased progression provides resistance against bottoming out, ensuring the bike can handle any challenges you encounter.

Rider, its your way
Rider, its your way
Rider, its your way
Rider, it’s your way

Are you torn between riding in bike parks or tackling challenging enduro trails with roots, rocks, and mud? The Rocbird can help you with its replaceable shock mount, which allows you to use two different sizes of shocks. This means you can adjust the frame travel to 160mm or 140mm, accommodating various riding styles and preferences.

UDH compatibility
UDH compatibility

Rocbird frames are fully compatible with SRAM Universal Derailleur Hanger (UDH) and Eagle Transmission drivetrains.

Custom chainstay and downtube protection
Custom chainstay and downtube protection
Custom chainstay and downtube protection

Our custom bicycle frame protectors are made of thick thermoplastic elastomer material, providing excellent protection against scratches, dents, and impacts. The ribbed pattern design adds durability, and these protectors are specifically tailored to fit Rocbirds frames, offering maximum protection without sacrificing aesthetics.

Screw-in bottom bracket with ISCG adapter
Screw-in bottom bracket with ISCG adapter
Screw-in bottom bracket with ISCG adapter
Screw-in bottom bracket with ISCG adapter

All Rocbird frames use screw-in bottom bracket type, as we believe it's the best type of BB for MTB frames, because of their durability and easier maintenance. Also, Rocbird frames, thanks to a special cut on the BB shell, can use a dedicated ISCG05 mount, which can be purchased separately. This allows riders to add a chain guide and bash guard, leaving the option open for personal preference.

Fully internal routing
Fully internal routing
Fully internal routing
Fully internal routing

We know that mechanics hate it, but we all want clean, nice-looking bikes. This feature makes all frames at least 10% more stylish.

High-end-bearings-on-all-pivots
High-end-bearings-on-all-pivots
High-end bearings on all pivots

All bearings in our full suspension frames feature extra dedicated custom sealing for enhanced protection against dust, dirt, and moisture. Red Mobil grease provides effective lubrication over extended periods, ensuring minimal friction and optimal performance. MAX-type bearings offer over 30% more load capacity than caged bearings.

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Specification

WHEEL SIZE

27.5"/26"

MATERIAL

AL 6061-T6

SHOCK HARDWARE

Trunnion/22.2x8mm

FRAME TRAVEL

160mm

COLOR

glossy Prism Blue

SIZES

M

SHOCK OPTIONS

w/o shock; w/X-Fusion O2 Pro R

WEIGHT

3.3kg

RECOMMENDED FORK TRAVEL

160-170mm

SHOCK SIZE

205x65mm

MAX CHAINRING SIZE

34T

MAX TIRE SIZE

27.5/26x2.6”

HUB SIZE

148x12mm

POST/CLAMP DIAMETER

30.9mm/34.9mm

HEADSET TYPE

IS42/IS52

DERAILLEUR HANGER

SRAM UDH

BB TYPE

BSA/Euro73mm

Geometry
size reach (mm) stack (mm) ST (mm) TT (mm) eTT (mm) CS (mm) HT (mm) HT angle (°) eST angle (°) BB drop (mm) WB (mm) stand-over (mm) wheel size (") hub size headset type (S.H.I.S) BB type (mm) post diam. (mm) clamp diam. (mm) brake mount max. rotor size (mm)
27.5/26 (M) 400 628 361 - 528 415 100 64.5 78 26/15.5 1132 628 46169 148x12 IS42/IS52 BSA/euro 73 30.9 34.9 PM 180 203