40 Series Zs49/30 Bottom Cover Headset Assembly

The Cane Creek 40 Series Zs49/30 Bottom Cover Headset Assembly is a precision-engineered headset component built for the ZS49 lower cup standard with a 30mm steerer interface. Designed for cyclists who demand reliable steering feel and long service life, it is a direct upgrade for road and gravel bikes running compatible frame standards across India's demanding riding environments.

Use Cases

Daily training. Reliable construction for repeat use.

Race day. Lightweight, stiff design for power transfer and aerodynamics.

Fit adjustment. Right stem length critical for comfortable bike fit.

Our Take

India's riding conditions — monsoon moisture in Pune, dust-laden roads approaching Leh, and the relentless heat of Hyderabad summers — accelerate bearing wear faster than most riders expect. The Cane Creek 40 Series is a trusted benchmark in headset engineering. Replacing a worn lower cup assembly with this unit brings back precise, play-free steering feel, which matters enormously on technical descents through the Western Ghats or Coorg's winding roads.

Sizing for Indian Riders

This is a component sizing question, not a body sizing question. The Zs49/30 designation specifies a Zero-Stack 49mm lower cup with a 30mm steerer bore — verify both your frame's head tube lower bore diameter and your fork's steerer diameter before ordering. Consult your frame manufacturer's specifications or contact the Cobbled Climbs team for fitment confirmation if unsure.

Compatibility Notes

Compatible with frames specifying ZS49 lower head tube standards and forks with a 30mm steerer diameter. Not interchangeable with EC, IS, or other ZS cup sizes. Works within the Cane Creek 40 Series ecosystem. Apply quality waterproof grease during installation, especially given India's monsoon humidity. A proper headset press is required — never hammer components into place.

Pairs Well With

For a complete headset service or upgrade, consider pairing this bottom cover assembly with a compatible upper headset cup, quality waterproof bearing grease, a headset press tool, and a stem and spacer set matched to your steerer diameter. Browse all categories at Cobbled Climbs for a complete build.

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Specifications

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Why buy from Cobbled Climbs

• 100% genuine — authorised Cane Creek retailer in India
• Free delivery on orders above Rs. 2,500
• Cash on delivery available nationwide
• 7-day easy returns
• Shipped from Mumbai
• Expert advice — built for Indian cycling conditions

Cane Creek has been engineering precision headsets, suspension products, and cycling components from Fletcher, North Carolina since 1994. Renowned among road, gravel, and mountain cyclists worldwide, the brand's 40 Series headsets are widely regarded as a benchmark for quality, durability, and steering precision across all riding disciplines.

Why pay full price when loyalty pays back?

Club House rewards you for every purchase — up to 5% cashback, 100 bonus points to start, birthday rewards, and early access to limited drops. It’s our way of saying thanks for riding with us.

Shipping:
We ship all orders within 48 hours, excluding Sundays and public holidays. Delivery typically takes 3 to 5 days depending on your location.

Returns:
If your item arrives damaged, incorrect, or doesn’t fit, you may request a return within 7 days of delivery. Email us at support@cobbledclimbs.com with your order details. Items must be unused and returned in original packaging with all tags and labels intact.

Sale Item Guidelines:
Products purchased on sale are final sale and not eligible for return or exchange. Please double-check sizing, fit, and product details before purchasing.

Please note:
We follow a no money refund policy. Eligible returns are offered store credit or exchange only.