(Discontinued) Hub Strummer HM-380 Gen-1 (9x100/10x135)
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Strummer

HUB-00112BKGY

(Discontinued) Hub Strummer HM-380 Gen-1 (9x100/10x135)

Rp 410.000
/

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Strummer HM-380 delivers class-leading performance with 114 POE (3.16° engagement) from its 3-teeth, 6 pawls mechanism, providing instant response with the distinctive sharp wasp-like buzzing sound. Precisely manufactured using a combination of AL6061-T6 & AL7075-T6, this hub is designed for strength, durability, and consistent performance. Supported...

Product details

Strummer HM-380 delivers class-leading performance with 114 POE (3.16° engagement) from its 3-teeth, 6 pawls mechanism, providing instant response with the distinctive sharp wasp-like buzzing sound.

Precisely manufactured using a combination of AL6061-T6 & AL7075-T6, this hub is designed for strength, durability, and consistent performance. Supported by various adapter and accessory options, this hub is flexible for a wide range of bicycle configurations.

Specifications

Category Details
Front hub 5.2 × 100 mm (QR 9 mm), 171 g, 14G 32H
Rear hub 5.2 × 135 mm (QR 10 mm), 287 g, 14G 32H
Axle QR 5 mm (included)
Cassette HG compatible
Brake 6-Bolt disc
Material AL6061-T6 body, AL7075-T6 axle
Bearings 2 front, 4 rear (sealed)

Spare Parts & Accessories

Adapters, bearings, and supporting components are sold separately

Adapters / End Caps:

  • Front: 5.2×100 / 12×100 / 15×100
  • Rear: 5.2×135 / 5.2×142 / 12×142

Bearings:

Replacement Bearing Options
Position Bearing Type Dimensions (ID × OD × Thickness) Quantity Steel (SKU) Hybrid Ceramic (SKU)
Front Hub 18307-2RS 18 × 30 × 7 mm 2 pcs LAHAR-00013 LAHAR-00015
Rear Hub 6902-2RS 15 × 28 × 7 mm 2 pcs LAHAR-00011 LAHAR-00017
Freehub Body 6902-2RS 15 × 28 × 7 mm 2 pcs LAHAR-00011 LAHAR-00017

Match the code, dimensions, and seals with the old bearing before purchasing. Hybrid Ceramic is an upgrade option when the type and size are compatible.

Other Components:

  • Strummer Pawl & Ratchet Special Grease
  • Plastic retaining ring (Pawl)
  • Freehub body rubber seal

Examples of Compatible Bicycles

Polygon:

  • Siskiu D5 (2019–2021)*
  • Xtrada 5 2x10 (2021)*
  • Xtrada 6 (2020)*
  • Xtrada 6 2x11 (2021)*
  • Xtrada 6 1x11 (2021)*

Trek:

  • Marlin 4 (2022) – Ready to Install

*Requires a 5.2 × 142 mm rear adapter

B2B Information (for Dealers)

Carton contents vary by variant:

  • Front Hub Only (9x100) / Black/Grey (SKU: HUB-00112BKGY): 20 pcs
  • Front Hub Only (9x100) / Black/Red (SKU: HUB-00112BKRD): 20 pcs
  • Front Hub Only (9x100) / Black/White (SKU: HUB-00112BKWH): 20 pcs
  • Front Hub Only (9x100) / Black/Yellow (SKU: HUB-00112BKYL): 20 pcs
  • Front Hub Only (9x100) / Blue/White (SKU: HUB-00112BLWH): 20 pcs
  • Front Hub Only (9x100) / Gold/White (SKU: HUB-00112GLWH): 20 pcs
  • Front Hub Only (9x100) / Red/White (SKU: HUB-00112RDWH): 20 pcs
  • Front Hub Only (9x100) / Titan/White (SKU: HUB-00112TIWH): 20 pcs
  • Rear Hub Only (10x135) / Black/Grey (SKU: HUB-00113TIWH): 20 pcs
  • Rear Hub Only (10x135) / Black/Red (SKU: HUB-00113RDWH): 20 pcs
  • Rear Hub Only (10x135) / Black/White (SKU: HUB-00113GLWH): 20 pcs
  • Rear Hub Only (10x135) / Black/Yellow (SKU: HUB-00113BLWH): 20 pcs
  • Rear Hub Only (10x135) / Blue/White (SKU: HUB-00113BKYL): 20 pcs
  • Rear Hub Only (10x135) / Gold/White (SKU: HUB-00113BKWH): 20 pcs
  • Rear Hub Only (10x135) / Red/White (SKU: HUB-00113BKRD): 20 pcs
  • Rear Hub Only (10x135) / Titan/White (SKU: HUB-00113BKGY): 20 pcs
  • Front & Rear Hub (9x100/10x135) / Black/Grey (SKU: HUB-00075BKGY): 20 sets
  • Front & Rear Hub (9x100/10x135) / Black/Red (SKU: HUB-00075BKRD): 20 sets
  • Front & Rear Hub (9x100/10x135) / Black/White (SKU: HUB-00075BKWH): 20 sets
  • Front & Rear Hub (9x100/10x135) / Black/Yellow (SKU: HUB-00075BKYL): 20 sets
  • Front & Rear Hub (9x100/10x135) / Blue/White (SKU: HUB-00075BLWH): 20 sets
  • Front & Rear Hub (9x100/10x135) / Gold/White (SKU: HUB-00075GLWH): 20 sets
  • Front & Rear Hub (9x100/10x135) / Red/White (SKU: HUB-00075RDWH): 20 sets
  • Front & Rear Hub (9x100/10x135) / Titan/White (SKU: HUB-00075TIWH): 20 sets

Rear Hub (Freehub) Maintenance Notes

Grease lubricates the parts that rub against each other in the freehub mechanism of the rear hub, helping to reduce friction and wear. Removing all the grease solely to obtain a louder sound is not recommended. Without adequate lubrication, components may wear out or become damaged more quickly, shortening their service life. Use the type and amount of lubricant specified in the product maintenance recommendations.

Product Generation

The HM-380 Boost Gen-2 model is available. Check the specifications and variant on that model's product page; contact a dealer for stock availability. Spare parts must be matched to the hub model and generation.

Polygon Cascade 4 2021

The HM-380 Gen-1 non-Boost is compatible with the 2021 Polygon Cascade 4 when using a 9×100 mm QR front and 10×135 mm rear, HG cassette, 6-bolt rotor, and the appropriate rim hole count. Check the component standards on your bicycle before installation.

Polygon Path 3

The HM-380 Gen-1 non-Boost is compatible with the Polygon Path 3 if the bicycle uses a 9×100 mm front QR, 10×135 mm rear, HG cassette, 6-bolt rotor, and the appropriate rim hole count. Check the standards on the bicycle first.

Polygon Heist X5

The HM-380 Gen-1 non-Boost can be used on the Polygon Heist X5 if the axle standard, end cap, freehub, rotor, and hole count are compatible. Check the bicycle's year and configuration. If they differ from the hub's standard 9×100/10×135 mm QR, the appropriate end cap is required.

Installation on a 141 mm QR Frame

Use the Strummer 10×142 Gen-1 Rear Hub Adapter, which supports conversion from 10×135 to 10×142 mm and is sold separately. Ensure that it is compatible with the HM-380 Gen-1 non-Boost. A mechanic should check the dropout mounting and rotor position for the 141 mm QR configuration.

Checking Rotor Position After Conversion

Whether a rotor spacer is needed must be checked during installation. Ask a mechanic to check the rotor position relative to the caliper based on the frame, hub, adapter, and caliper being used.

Compatible Adapter References

The following adapters and end caps are sold separately. Match the model, generation, hub position, fork/frame standard, and freehub configuration before purchasing.

Adapter / end cap Function and compatibility
Front 9×100 mm QR end cap
SKU: ADT-00059BK		 Replacement for the included end cap.
Front 12×100 mm thru-axle end cap
SKU: ADT-00043BK		 Converts the front hub to a 12×100 mm thru axle.
Front 15×100 mm thru-axle end cap
SKU: ADT-00049BK		 Converts the front hub to a 15×100 mm thru axle.
Rear 10×135 mm QR end cap
SKU: ADT-00044BK		 For compatible HM-280/HM-350/HM-380 non-Boost models.
Rear 10×142 mm Gen-1 QR end cap
SKU: ADT-00033BK		 Converts the rear from 10×135 mm QR to 10×142 mm QR.

Strummer HM-380 delivers class-leading performance with 114 POE (3.16° engagement) from its 3-teeth, 6 pawls mechanism, providing instant response with the distinctive sharp wasp-like buzzing sound.

Precisely manufactured using a combination of AL6061-T6 & AL7075-T6, this hub is designed for strength, durability, and consistent performance. Supported by various adapter and accessory options, this hub is flexible for a wide range of bicycle configurations.

Specifications

Category Details
Front hub 5.2 × 100 mm (QR 9 mm), 171 g, 14G 32H
Rear hub 5.2 × 135 mm (QR 10 mm), 287 g, 14G 32H
Axle QR 5 mm (included)
Cassette HG compatible
Brake 6-Bolt disc
Material AL6061-T6 body, AL7075-T6 axle
Bearings 2 front, 4 rear (sealed)

Spare Parts & Accessories

Adapters, bearings, and supporting components are sold separately

Adapters / End Caps:

  • Front: 5.2×100 / 12×100 / 15×100
  • Rear: 5.2×135 / 5.2×142 / 12×142

Bearings:

Replacement Bearing Options
Position Bearing Type Dimensions (ID × OD × Thickness) Quantity Steel (SKU) Hybrid Ceramic (SKU)
Front Hub 18307-2RS 18 × 30 × 7 mm 2 pcs LAHAR-00013 LAHAR-00015
Rear Hub 6902-2RS 15 × 28 × 7 mm 2 pcs LAHAR-00011 LAHAR-00017
Freehub Body 6902-2RS 15 × 28 × 7 mm 2 pcs LAHAR-00011 LAHAR-00017

Match the code, dimensions, and seals with the old bearing before purchasing. Hybrid Ceramic is an upgrade option when the type and size are compatible.

Other Components:

  • Strummer Pawl & Ratchet Special Grease
  • Plastic retaining ring (Pawl)
  • Freehub body rubber seal

Examples of Compatible Bicycles

Polygon:

  • Siskiu D5 (2019–2021)*
  • Xtrada 5 2x10 (2021)*
  • Xtrada 6 (2020)*
  • Xtrada 6 2x11 (2021)*
  • Xtrada 6 1x11 (2021)*

Trek:

  • Marlin 4 (2022) – Ready to Install

*Requires a 5.2 × 142 mm rear adapter

B2B Information (for Dealers)

Carton contents vary by variant:

  • Front Hub Only (9x100) / Black/Grey (SKU: HUB-00112BKGY): 20 pcs
  • Front Hub Only (9x100) / Black/Red (SKU: HUB-00112BKRD): 20 pcs
  • Front Hub Only (9x100) / Black/White (SKU: HUB-00112BKWH): 20 pcs
  • Front Hub Only (9x100) / Black/Yellow (SKU: HUB-00112BKYL): 20 pcs
  • Front Hub Only (9x100) / Blue/White (SKU: HUB-00112BLWH): 20 pcs
  • Front Hub Only (9x100) / Gold/White (SKU: HUB-00112GLWH): 20 pcs
  • Front Hub Only (9x100) / Red/White (SKU: HUB-00112RDWH): 20 pcs
  • Front Hub Only (9x100) / Titan/White (SKU: HUB-00112TIWH): 20 pcs
  • Rear Hub Only (10x135) / Black/Grey (SKU: HUB-00113TIWH): 20 pcs
  • Rear Hub Only (10x135) / Black/Red (SKU: HUB-00113RDWH): 20 pcs
  • Rear Hub Only (10x135) / Black/White (SKU: HUB-00113GLWH): 20 pcs
  • Rear Hub Only (10x135) / Black/Yellow (SKU: HUB-00113BLWH): 20 pcs
  • Rear Hub Only (10x135) / Blue/White (SKU: HUB-00113BKYL): 20 pcs
  • Rear Hub Only (10x135) / Gold/White (SKU: HUB-00113BKWH): 20 pcs
  • Rear Hub Only (10x135) / Red/White (SKU: HUB-00113BKRD): 20 pcs
  • Rear Hub Only (10x135) / Titan/White (SKU: HUB-00113BKGY): 20 pcs
  • Front & Rear Hub (9x100/10x135) / Black/Grey (SKU: HUB-00075BKGY): 20 sets
  • Front & Rear Hub (9x100/10x135) / Black/Red (SKU: HUB-00075BKRD): 20 sets
  • Front & Rear Hub (9x100/10x135) / Black/White (SKU: HUB-00075BKWH): 20 sets
  • Front & Rear Hub (9x100/10x135) / Black/Yellow (SKU: HUB-00075BKYL): 20 sets
  • Front & Rear Hub (9x100/10x135) / Blue/White (SKU: HUB-00075BLWH): 20 sets
  • Front & Rear Hub (9x100/10x135) / Gold/White (SKU: HUB-00075GLWH): 20 sets
  • Front & Rear Hub (9x100/10x135) / Red/White (SKU: HUB-00075RDWH): 20 sets
  • Front & Rear Hub (9x100/10x135) / Titan/White (SKU: HUB-00075TIWH): 20 sets

Rear Hub (Freehub) Maintenance Notes

Grease lubricates the parts that rub against each other in the freehub mechanism of the rear hub, helping to reduce friction and wear. Removing all the grease solely to obtain a louder sound is not recommended. Without adequate lubrication, components may wear out or become damaged more quickly, shortening their service life. Use the type and amount of lubricant specified in the product maintenance recommendations.

Product Generation

The HM-380 Boost Gen-2 model is available. Check the specifications and variant on that model's product page; contact a dealer for stock availability. Spare parts must be matched to the hub model and generation.

Polygon Cascade 4 2021

The HM-380 Gen-1 non-Boost is compatible with the 2021 Polygon Cascade 4 when using a 9×100 mm QR front and 10×135 mm rear, HG cassette, 6-bolt rotor, and the appropriate rim hole count. Check the component standards on your bicycle before installation.

Polygon Path 3

The HM-380 Gen-1 non-Boost is compatible with the Polygon Path 3 if the bicycle uses a 9×100 mm front QR, 10×135 mm rear, HG cassette, 6-bolt rotor, and the appropriate rim hole count. Check the standards on the bicycle first.

Polygon Heist X5

The HM-380 Gen-1 non-Boost can be used on the Polygon Heist X5 if the axle standard, end cap, freehub, rotor, and hole count are compatible. Check the bicycle's year and configuration. If they differ from the hub's standard 9×100/10×135 mm QR, the appropriate end cap is required.

Installation on a 141 mm QR Frame

Use the Strummer 10×142 Gen-1 Rear Hub Adapter, which supports conversion from 10×135 to 10×142 mm and is sold separately. Ensure that it is compatible with the HM-380 Gen-1 non-Boost. A mechanic should check the dropout mounting and rotor position for the 141 mm QR configuration.

Checking Rotor Position After Conversion

Whether a rotor spacer is needed must be checked during installation. Ask a mechanic to check the rotor position relative to the caliper based on the frame, hub, adapter, and caliper being used.

Compatible Adapter References

The following adapters and end caps are sold separately. Match the model, generation, hub position, fork/frame standard, and freehub configuration before purchasing.

Adapter / end cap Function and compatibility
Front 9×100 mm QR end cap
SKU: ADT-00059BK		 Replacement for the included end cap.
Front 12×100 mm thru-axle end cap
SKU: ADT-00043BK		 Converts the front hub to a 12×100 mm thru axle.
Front 15×100 mm thru-axle end cap
SKU: ADT-00049BK		 Converts the front hub to a 15×100 mm thru axle.
Rear 10×135 mm QR end cap
SKU: ADT-00044BK		 For compatible HM-280/HM-350/HM-380 non-Boost models.
Rear 10×142 mm Gen-1 QR end cap
SKU: ADT-00033BK		 Converts the rear from 10×135 mm QR to 10×142 mm QR.

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