Box Two Prime 9 Speed 12-50T Cassette

Name: Box Two Prime 9 Speed 12-50T Cassette
Brand: Box
SKU: PROD375
Price: 45.0 GBP
Availability: OutOfStock
Rating: 4.6 (86 reviews)

Free UK delivery · toolkit or pro build available

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Components

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Your bike arrives boxed — these make set-up effortless. Tick to add.

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Free UK delivery — most bikes within 3–5 working days

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The Box Two cassette was where Prime 9 started. Originally conceived as an E-MTB product to deliver long service life and extra range over fewer gears, we quickly grew to enjoy its abilities on unpowered MTBs. All cogs are stamped from steel and subsequently, the larger ones are pinned to alloy spiders. Due to its provenance, this is, without doubt, the most durable cassette in the range.

Our Most Durable Cassette
Steel Stamped Cogs
Lightweight Alloy Spiders
Ultra-Wide Ratio with Consistent Progression

Process/Material
• Cogs: Stamped / Hardened Steel
• Spider: CNC / 6061-T6 Aluminum
• Lockring: CNC / 6061-T6 Aluminum
Finish: ED Black
Speeds: 9
Non-Ebike Gear: 11 - 13 - 15 - 18 - 22 - 28 - 34 - 42 - 50
Compatibility
• Platform: Non-Ebike
• Driver: HG Freehub Body
• Chain: Box One Prime 9, Box Two Prime 9, Box Three Prime 9
Weight: 645g/22.7oz

Box Components SKU: BX-CS2-P9A1250-BK

Box One Prime 9 Chain 126L DLC Black
Box Two Prime 9 126 Link Chain Nickel
Box Three Prime 9 126 Link Chain Polished
Box One Prime 9 Rear Derailleur
Box Two Prime 9 X-Wide Rear Derailleur Black
Box Three Prime 9 X-Wide Rear Derailleur Black
Box One Prime 9 Shifter Black
Box Two Prime 9 Shifter Black
Box Three Prime 9 Shifter Black

Brand	Box
Type	Components
SKU	PROD375

Free UK mainland delivery on all bikes. Most bikes arrive within 3–5 working days, boxed and ready to finish — typically pedals, handlebars and front wheel. Add our toolkit or choose a pro build so it arrives ride-ready.

Changed your mind? Return any bike within 90 days for a full refund, no quibbles. Contact our Shrewsbury team on 07779 099012 and we'll arrange collection.