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GRK5 Racing Short Bumper Ver 2 [Shibata] R31S121
GRK5 Racing Short Bumper Ver 2 [Shibata] R31S121
GRK5 Racing Short Bumper Ver 2 [Shibata] R31S121
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GRK5 Racing Short Bumper Ver 2 [Shibata] R31S121

Marsoni M251S
Sale price$315.00
Pay 4 payments of $78.75 a month.Shop Pay
Get it in 3 business days with 1 day shipping. Friday, May 29
GRK5 Racing Short Bumper Ver 2 [Shibata] R31S121Product Description Our highly popular racing short bumper, designed specifically for the GRK5 nose cone, has been updated to the Ver. 2 model! This new product features a specially made carbon fiber material, custom made at a factory in Japan. It has been redesigned to be lighter and more compact than previous models. *This is a dedicated model that is only compatible with the aluminum nose cone of the GRK5 GRK5 R kit model.
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Your GRK5 Racing Short Bumper Ver 2 [Shibata] R31S121 orders ship within 1-2 business days.

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  • Standard: 3-7 business days
  • Fast: 2-3 business days
  • Express: 1-2 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.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
4.2 ★★★★★
Based on 2260 reviews
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Product Reviews
T
Verified Purchase
Trish M.
Omaha, US
★★★★★ 5
Handsome Watch!
Color: Grey Watch-Grey Face-G8406
This is a stunning watch. Masculine and nice enough for a more formal occasion. Great value and comfortable fit.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 29, 2026
M
Verified Purchase
Maureen Lochhead
Natrona Heights, US
★★★★★ 4
Nice size and look
Color: Silver Face-G8470
Nice watch and great expansion band . Nice value for the money
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 9, 2026
G
Verified Purchase
Gma S
Boise, US
★★★★★ 5
. BUT the problem is I received Two I don’t want Two now what?
Color: Silver-gold Watch-G8405
Looks good But I don’t want two which I received. Now what I do NOT want billed for Two.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 17, 2026
F
Verified Purchase
Faith
Charlottesville, US
★★★★★ 5
Nice watch
Color: Blue Face-G8470
Very nice. Easy to adjust wristband. Great price.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 9, 2026
J
Verified Purchase
James H.
Phoenix, US
★★★★★ 5
New watch
Color: Blue Face-G8470
Love my new watch, high quality 👌
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 30, 2025

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