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57HB MK-II Pro Sim Handbrake

Shifters & Handbrakes · by Stuyo · 5 Jun 2026

The 57HB MK-II Pro was needed counterpart to the 57SEQ Pro shifter so no I present it to you - finally you can make yourself good Drift/Rally combo, that feels premium but is quite reasonably priced.

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What you get

  • 57HB2_Pro.zip2.8 MB
  • 57HB2_OBJ.zip11.7 MB
  • ✓ Parts list & print settings · ✓ Future updates
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Overview

The 57HB MK-II Pro was needed counterpart to the 57SEQ Pro shifter so no I present it to you - finally you can make yourself good Drift/Rally combo, that feels premium but is quite reasonably priced.

Main Features:

  • Two stage spring
  • One way adjustable damper to simulate real hydraulic handbrake feel
  • Hall sensor based for easier interface with DIY controllers or directly on some wheelbases
  • Handle can be mounted both vertically and horizontally
  • Angle of handle is widely adjustable
  • Two magnets ensure you are getting detailed positional readout from the 49E sensor
  • You can mix and match spring to tailor the double stage feel
  • Strong construction, should be capable of supporting all compression spring colors if you prefer stiffer handbrake
  • All pivots are with oversized ball bearings
  • Three different handles - Small, Large (both longer and thicker) and adapter for standard MTB Grips
  • Can be bottom or top mounted (top mount for the backend spring pivot plate was not tested!)
  • Easy and cheap to build
  • Version without damper included in the files, but I cannot imagine why somebody would like to build one that way ;)

Parts list

PartTypeSizeCountPriceMod %Price/UnitLinkComment
Alu Extrusion Profilie3030100mm1111Vallder ↗Base profile
Adjustabe DamperAD142020mm116.5116.5AliExpress ↗Hydraulic Damper
M8 Socket Bolt (5pcs)M8100mm210.390.12.078AliExpress ↗Spring guide/Handle
Compression Spring OD20mmOD20, ID1030mm12.9312.93AliExpress ↗Main spring
Compression Spring OD20mm, (10pcs)1.8mm, OD20mm15mm16.230.10.623AliExpress ↗First stage spring
608 2RS "Skateboard" Bearing608 2RS8x22x7mm40.9613.84AliExpress ↗Handle/Spring Pivot 1
696ZZ Ball Bearing (10 pcs)696ZZ6x15x5mm26.230.11.246AliExpress ↗Spring Pivot 2
M8 Brass Heat Inert M8 OD10mm, 8mm (30 Pcs)M8 (OD 10mm)8mm45.220.0330.68904AliExpress ↗Handle/Spring Block 1
M8 Brass Heat Inert M6 OD8mm, 7mm(30 Pcs)M6 (OD 8mm)7mm22.450.033AliExpress ↗Spring Block 2
M3 Brass Heat Inert M3 OD4.2mm, 6mm (30 Pcs)M3 (OD 4.2mm)6mm81.790.0330.47256AliExpress ↗Damper Mount
M8 Flat Washer x14x1.2mm (50pcs)M88x1.2x14mm83.920.020.6272AliExpress ↗Pivots on Handle
M6 Flat Washer x12x1mm (100pcs)M66x1x1220.90.010.018AliExpress ↗Pivot on Spring Block 2
M8 Socket BoltM820mm30.5311.59Vallder ↗Bottom Pivot/End Plate
M8 Socket BoltM816mm20.4710.94Vallder ↗Top Pivot
M6 Socket BoltM640mm10.4210.42Vallder ↗End Plate Structure
M6 Socket BoltM614mm20.1910.38Vallder ↗Spring Pivot 2
M6 Socket BoltM612mm20.1210.24Vallder ↗Sensor/Limiter
T-Slot Nut 30-M830-M8M820.2810.56Vallder ↗Main Pivot
T-Slot Nut 30-M830-M6M620.2810.56Vallder ↗End Plate
Hammer T-Nut Slot 30 (DropIn)30-M6M620.2510.5Vallder ↗Sensor/Limiter
M8 Lock Nut (10 pcs)M8M811.920.10.192AliExpress ↗Spring lock nut
M6 Lock Nut (125 pcs)M6M614.630.040.1852AliExpress ↗End Plate Structure
49 E Hall Effect Sensor (10pcs)49E12.980.10.298AliExpress ↗Position Sensor
Neodym Magnet, Round, 4x2mm (100pcs)Round4x2mm21.240.010.0248AliExpress ↗Position Magnets
M3 Flat Head Screws 20mm (30pcs)M320mm81.210.0330.31944AliExpress ↗Damper Mount
JDM Bumper Washer + Bolt (10-pc)24.7900.958AliExpress ↗End Plate
Total:35.9138

Swipe the table sideways for all columns.Open in Google Sheets ↗

Build info

Pats list:

N.B. - Prices are with VAT and Shipping as I ordered at the time the project was published. Some items i bought in bulk, so % of actually needed parts was adjusted to give you idea of the final price of the non-printed parts needed for this project.

Print Settings:

Use more than 5 walls, 25% Gyroid infill, 0.2 layer. PETG for stability, PLA will also work. Parts oriented in the way that should be printed. Only parts needing support are the side mounts and microswitch holders.

For best results I ended up using PLA+ (Sunlu PLA+ 2.0), 9 walls/bottom/top, 45% Gyroid infill.

Questions about this build?

Ask in the DIY-SIM Discord: other builders have probably built it already.

Ask on Discord

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