KMC X Series X FLAT
Lists today at $45
Own a KMC X Series X FLAT?
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What a used one is worth
New
$45
$38 to $45
Like new
$43
$36 to $45
Excellent
$41
$34 to $45
Good
$34
$29 to $37
Fair
$25
$21 to $27
For parts
$14
$11 to $15
From the current list price, adjusted for condition. Guidance from our catalog, not an appraisal.
Overview
- Brand
- KMC
- Series
- X Series
- Model
- X FLAT
- Type
- Chain
- Speeds
- 12
- Years
- 2025 to 2026
- Current list price
- $45 (as of 2026-09)
Compatibility
- Ecosystem
- sram_flattop
Specifications
- Lube
- pre-waxed (KMC GO)
- Width
- 1/2 x 11/128 in
- Flattop
- true
- Finishes
- Silver, Silver/Black, Ti-N Gold, Ti-N Gold/Black, Aurora Blue, EPT
- Weight g
- 244
- Connector
- MissingLink FLAT NR (non-reusable)
- Stock links
- 126
- Weight basis
- per 110 links, KMC Europe listing (244 g); sold as 126 links
- Pin length mm
- 5.2
- Compatible with
- sram_flattop, sram_ttype
- Also fits speeds
- 13
- Not compatible with
- sram_eagle, shimano_hg_12, campagnolo_12
KMC's flattop chain for SRAM 12 and 13 speed AXS road and Transmission/T-Type drivetrains only. Earliest first-party evidence: KMC Europe pages captured July 2025 and the KMC USA listing created September 2025. msrp_usd is the current KMC USA list price for Silver (Ti Gold and EPT 65.00, Aurora and Ti Gold/Black 70.00). KMC USA lists 253 g for 126 links. Price labels fixed 2026-09-26: moved the KMC USA price of 45 to list_price_usd (a current list price observed 2026-09) and set msrp_usd to null because no launch price is documented.