MPart Elite Headset R438 1 1/2" Bearing (51.8 x 40 x 8, 36x45) 36 Degrees, IS52, (equiv. to Cannondale ACB518H8K-DAAD), HPT0421

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£13.99 (inc £2.33 VAT)

UK Delivery

£4.50 standard UK Delivery with First Class Royal Mail
FREE delivery on all orders over £20

EU Delivery

Local VAT included below €150
Orders over €150: All VAT removed at Checkout
FREE delivery on all orders over £50

Outside EU Delivery

All VAT will be removed at Checkout
FREE delivery on all orders over £50 to many countries

* Need help? Please check out our Parts Lists by Bike Model or email us your bike year and model to techsupport@CannondaleSpares.com *

Product Description

Quad sealed precision angular contact bearing coupled with double sealed bearing housing, keeps the British climate at bay
For Elite headsets
Suits EC44 EC49 IS52
To check size measure inside diameter x outside diameter x width
ID40mm x OD51.8mm x W8mm
36x45 angle

Bike Platforms that feature this product:

F-Si (2019-2021)

F-Si (2019-2021) Platform Parts List

Bikes using this platform:

- 2021 F-Si Hi-MOD Ultimate - Copper (C25101M)

- 2021 F-Si Hi-MOD 1 - Team Replica (C25201M)

- 2021 F-Si Carbon 5 - Highlighter (C25601M)

- 2021 F-Si Carbon 5 - Cashmere (C25601M)

- 2021 F-Si Carbon 4 - Silver (C25501M)

- 2021 F-Si Carbon 4 - Alpine (C25501M)

- 2021 F-Si Carbon 3 - Rally Red (C25401M)

- 2021 F-Si Carbon 3 - Black Pearl (C25401M)

- 2021 F-Si Carbon 2 - Mercury (C25301M)

- 2020 F-Si Hi-MOD World Cup - Replica (C25100M)

- 2020 F-Si Hi-MOD 1 - Matte Black (C25150M)

- 2020 F-Si Carbon Womens 2 - (C25200F)

- 2020 F-Si Carbon 5 - Black (C25500M)

- 2020 F-Si Carbon 4 - Graphite (C25400M)

- 2020 F-Si Carbon 3 - Matte Black (C25300M)

- 2020 F-Si Carbon 2 - Chameleon (C25200M)

- 2019 F-Si World Cup - REP (C25129M)

- 2019 F-Si Limited Edition - BBQ (C25139M)

- 2019 F-Si Hi-Mod 1 BLK (C25159M)

- 2019 F-Si Carbon Womens 2 - BPL (C25209F)

- 2019 F-Si Carbon 5 - GRN (C25509M)

- 2019 F-Si Carbon 4 - GRY (C25409M)

- 2019 F-Si Carbon 3 - VUG (C25309M)

- 2019 F-Si Carbon 2 - BPL (C25209M)

Jekyll (2021 -)

Jekyll (2021 -) Platform Parts List

Bikes using this platform:

- 2023 Jekyll 2 - Deep Teal (C21202U)

- 2023 Jekyll 1 - Ginger (C21102U)

- 2022 Jekyll 2 - Purple Haze (C21202U)

- 2022 Jekyll 2 - Graphite (C21202U)

- 2022 Jekyll 1 - Beetle Green (C21102U)

- 2021 Jekyll Frameset - Black with WOW Colours (C21181M)

- 2021 Jekyll 1 - Graphite (C21102U)

Moterra Neo Alloy (2021)

Moterra Neo Alloy (2021) Platform Parts List

Bikes using this platform:

Scalpel (2020-2021)

Scalpel (2020-2021) Platform Parts List

Bikes using this platform:

- 2021 Scalpel Hi-MOD 1 - Team Replica (C24111M)

- 2021 Scalpel Carbon SE 2 - Saber (C24351M)

- 2021 Scalpel Carbon SE 1 - Stealth Grey (C24251M)

- 2021 Scalpel Carbon LTD - Carbon (C24201M)

- 2021 Scalpel Carbon 3 - Black (C24401M)

Topstone Alloy (2022)

Topstone Alloy (2022) Platform Parts List

Bikes using this platform:

- 2025 Topstone 1 - Tiger Eye (C15395U)

- 2023 Topstone Apex 1 - Mercury (C15652U)

- 2023 Topstone Apex 1 - Cinnamon (C15652U)

- 2023 Topstone 1 - Gunmetal Green (C15603U)

- 2022 Topstone LTD - Mystique Gray (C15502U)

- 2022 Topstone 4 - Mango (C15902U)

- 2022 Topstone 4 - Black Pearl (C15902U)

- 2022 Topstone 3 - Turquoise (C15802U)

- 2022 Topstone 3 - Grey (C15802U)

- 2022 Topstone 3 - Black Cherry (C15871M)

- 2022 Topstone 2 - Olive Green (C15702U)

- 2022 Topstone 2 - Midnight Blue (C15702U)

- 2022 Topstone 1 - Mercury (C15602U)

- 2022 Topstone 1 - Cinnamon (C15602U)

- 2021 Topstone 4 - Alpine (C15801M)

Topstone Carbon (2020-2021)

Topstone Carbon (2020-2021) Platform Parts List

Bikes using this platform:

- 2021 Topstone Carbon Womens 4 - Lavender (C15501F)

- 2021 Topstone Carbon Lefty 3 - Stealth Gray (C15151M)

- 2021 Topstone Carbon Lefty 3 - Mantis (C15151M)

- 2021 Topstone Carbon Lefty 1 - Chameleon (C15251M)

- 2021 Topstone Carbon 6 - Beetle Green (C15601U)

- 2021 Topstone Carbon 6 - Abyss Blue (C15601U)

- 2021 Topstone Carbon 5 - Purple (C15601M)

- 2021 Topstone Carbon 5 - Graphite (C15601M)

- 2021 Topstone Carbon 4 - Champagne (C15501M)

- 2021 Topstone Carbon 2 - Saber (SBR) (C15301M)

- 2020 Topstone Carbon Womens Ultegra RX 2 - Black Pearl (C15500F)

- 2020 Topstone Carbon Ultegra RX 2 - Agave (C15500M)

- 2020 Topstone Carbon Ultegra RX - Midnight (C15300M)

- 2020 Topstone Carbon Force eTap AXS - Acid Red (C15200M)

- 2020 Topstone Carbon 105 - Quicksand (C15600M)

- 2020 Topstone Carbon 105 - Black Pearl (C15600M)

Topstone Carbon (2022)

Topstone Carbon (2022) Platform Parts List

Bikes using this platform:

- 2024 Topstone Carbon 2 Lefty - Royal Purple (C15203U)

- 2024 Topstone Carbon 2 Lefty - Caffeine (C15203U)

- 2024 Topstone Carbon 2 L - Chili Powder (C15253U)

- 2023 Topstone LAB71 Frameset - Black (C15493U)

- 2023 Topstone Carbon Apex AXS - Orchid (C15703U)

- 2023 Topstone Carbon Apex AXS - Matte Black (C15703U)

- 2023 Topstone Carbon Apex 1 - Quicksand (C15322U)

- 2023 Topstone Carbon Apex 1 - Cinnamon (C15322U)

- 2023 Topstone Carbon Apex 1 - Carbon (C15322U)

- 2023 Topstone Carbon 4 - Orange (C15402U)

- 2023 Topstone Carbon 3 L - Carbon (C15303U)

- 2023 Topstone Carbon 3 L - Butter (C15303U)

- 2023 Topstone Carbon 3 - Carbon (C15373U)

- 2023 Topstone Carbon 3 - Butter (C15373U)

- 2023 Topstone Carbon 2 Lefty - Green (C15203U)

- 2023 Topstone Carbon 2 Lefty - Electric Blue (C15203U)

- 2023 Topstone Carbon 2 L - Jade (C15253U)

- 2022 Topstone Carbon Rival AXS - Smoke Black (C15752U)

- 2022 Topstone Carbon Rival AXS - Olive Green (C15752U)

- 2022 Topstone Carbon Apex - Quicksand (C15852U)

- 2022 Topstone Carbon Apex - Carbon (C15852U)

- 2022 Topstone Carbon 4 - Smoke Black (C15402U)

- 2022 Topstone Carbon 4 - Olive Green (C15402U)

- 2022 Topstone Carbon 3 L 650b - Carbon (C15352U)

- 2022 Topstone Carbon 3 L - Quicksand (C15302U)

- 2022 Topstone Carbon 3 L - Carbon (C15302U)

- 2022 Topstone Carbon 3 650b - Quicksand (C15362U)

- 2022 Topstone Carbon 3 650b - Carbon (C15362U)

- 2022 Topstone Carbon 3 - Quicksand (C15372U)

- 2022 Topstone Carbon 3 - Carbon (C15372U)

- 2022 Topstone Carbon 2 Lefty - Laguna Yellow (C15202U)

- 2022 Topstone Carbon 2 Lefty - Gold Dust (C15202U)

- 2022 Topstone Carbon 2 L - Jade (C15252U)

- 2022 Topstone Carbon 2 L - Chalk (C15252U)

- 2022 Topstone Carbon 1 RLE - Black Pearl (C15052U)

- 2022 Topstone Carbon 1 Lefty - Rally Red (C15102U)

Topstone Neo Carbon

Topstone Neo Carbon Platform Parts List

Bikes using this platform:

- 2022 Topstone Neo Carbon 3 Lefty - Highlighter (C62371M)

- 2022 Topstone Neo Carbon 3 Lefty - Highlighter (C62341U)

- 2022 Topstone Neo 5 - Black Pearl (C62561M)

- 2022 Topstone Neo 5 - Black Pearl (C62551M)

- 2021 Topstone Neo Carbon 4 - Champagne (C62251M)

- 2021 Topstone Neo Carbon 3 Lefty - Grey (C62151M)

- 2021 Topstone Neo Carbon 2 - Black Pearl (C62201M)

- 2021 Topstone Neo Carbon 1 Lefty - Emerald (C62101M)

Topstone Neo SL

Topstone Neo SL Platform Parts List

Bikes using this platform:

- 2022 Topstone Neo SL 2 - Graphite (C62401M, C62451U)

- 2022 Topstone Neo SL 1 - Agave (C62301M, C62351U)

Trail Neo (Gen 2/3 500wH) 2019

Trail Neo (Gen 2/3 500wH) 2019 Platform Parts List

Bikes using this platform:

- 2021 Trail Neo 4 - Highlighter (C61451M)

- 2020 Trail Neo 3 - Stealth Grey (C61300M)

- 2019 Trail Neo - Stealth Grey (C61339M)

(this list is not exhaustive - there could be other platforms that use this product)

Buy your MPart Elite Headset R438 1 1/2" Bearing (51.8 x 40 x 8, 36x45) 36 Degrees, IS52, (equiv. to Cannondale ACB518H8K-DAAD), HPT0421 from CannondaleSpares.com.