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Ships within 48 hours · Estimated delivery Jul 18 - Jul 23
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Description
Ritchey WCS Seat Mast 1-Bolt Rail Clamp Set, 8x8.5mmOptional 1 Bolt saddle rail clamps to replace stock clamps on Superlogic WCS Carbon or WCS Alloy 1 Bolt seatposts with 7x9. 6mm (Fizik carbon rail) or 8x8. 5mm (most other carbon rail) clamps. Stock clamps fit standard 7x7mm rails Stamped code: DC for carbon 9. 6, VF for carbon 8. 5, F for alloy 9. 6, S for alloy 8. 5 Silver alloy clamps fit carbon seatposts, black alloy clamps fit alloy seatposts Note: alloy clamps work on the Wilier Cento series
- Optional 1-Bolt saddle rail clamps to replace stock clamps on Superlogic/WCS Carbon or WCS Alloy 1-Bolt seatposts with 7x9.6mm (Fizik carbon rail) or 8x8.5mm (most other carbon rail) clamps. Stock clamps fit standard 7x7mm rails- Stamped code: DC for carbon/9.6, VF for carbon/8.5, F for alloy/9.6, S for alloy/8.5
- Silver alloy clamps fit carbon seatposts, black alloy clamps fit alloy seatposts
- Note: alloy clamps work on the Wilier Cento series frames
Today's Stock Status
2 Available to ship in 2-4 Business Days
UPC: 796941416245
EAN: Not available
Manufacturer Part Number: 55055467007
RC4188 ST4239
146938-Q0-L
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
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Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
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4.6 ★★★★★
Based on 18 reviews
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Product Reviews
★★★★★ 5
Perfect fit
Size: 1-Pack
Perfect fit, easy install
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Reviewed in the United States on May 20, 2026
★★★★★ 5
Happy with purchase
Great fit, seems good quality, would buy again
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Reviewed in the United States on April 18, 2026
★★★★★ 5
It is an air filter
Fit perfect easy replacement and saves $$$.
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Reviewed in the United States on May 15, 2026
★★★★★ 5
Perfect fit for 2020 Subaru Outback
Fit my 2020 Subaru Outback perfectly. 5-minute install. Works great. My previous cabin filter was scary to see.
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Reviewed in the United States on December 16, 2025
★★★★★ 5
Good, inexpensive replacement filter
I've used these filters for a couple years (four replacements) on my Subaru Crosstrek, and they seem to do the job well, probably as well as the original. I generally remove and clean them every three months, and replace them every six.
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Reviewed in the United States on May 7, 2026