SKU: 12727347702

Cylinder Kit 125cc for Honda CBR 125 R RW RT RS JC34 JC39 JC50 04-17 Sonic 125 Fedex Express

Sale price$24.09 Regular price$26.77
Save 10%

Pay in installments of $6.69 with ShopPay, AfterPay and Klarna

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Jul 30 - Aug 4

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

Description

Cylinder Kit 125cc for Honda CBR 125 R RW RT RS JC34 JC39 JC50 04-17 Sonic 125 Fedex Express58mm Cylinder Piston Gasket Rebuild Kit Fit For Honda CBR R 125 Sonic 125 4T Features: If your cylinder blows through, the compression is too low, or even a piston seizure has occurred, then this kit is exactly the right thing for you. Kit includes cylinder, piston, rings, pin, clips & top end gasket kit (you get exactly what is pictured). Piston is anodized for superior heat resistance and longer lifespan. The gaskets use performance materials to

58mm Cylinder Piston Gasket Rebuild Kit Fit For Honda CBR R 125 / Sonic 125 4T


Features:
If your cylinder blows through, the compression is too low, or even a piston seizure has occurred, then this kit is exactly the right thing for you.
Kit includes cylinder, piston, rings, pin, clips & top end gasket kit (you get exactly what is pictured).
Piston is anodized for superior heat resistance and longer lifespan.
The gaskets use performance materials to increase durability and provide greater reliability.
Includes all gaskets pictured to rebuild top end.
Kit is for standard bore size - 58mm x 47.2mm stroke, 13mm steel piston pin.
Compression Ratio: 11:1.
This kit is excellent as a low-cost replacement for defects in the original cylinder.

Specifications:
Condition: Aftermarket 100% Brand New
Quantity: 1 Set
Material: Aluminum
Displacement: 124cc
Bore Type: Standard Bore
Cylinder Type: KGH
Bore diameter: STD 58mm
Stroke: 47.2mm
Pin diameter: 13mm

Replacement Part Number:
Cylinder: 12100-KGH-900
Cylinder Base Gasket: 12191-KGH-901
Cylinder Head Gasket: 12251-KTY-D30
Piston (Std): 13101-KGH-902
Pin, Piston: 13111-KGH-903
Piston Ring Set (Std): 13011-KGH-305
Circlips, piston: 13115-GN5-910
Tensioner Gasket: 14560-KGH-900
Valve Stem Seal: 12209-GB4-682

Attention:
This kit from Honda Sonic 125. The Sonic is fitted with the European CBR125R and Indonesian CS1 4-stroke engine.
Difference between Sonic and CBR 125 cylinder only crankcase surface.
CBR125: For kit neccessary modify you crankcase. Modify only surface, look second pictures. Occlude gap. (welding or aluminium glue : Load gap in crankcase, with two component epoxy base aluminium glue.).
After modify use CBR or Sonic cylinder as well good.

Fits Models:
Fit for Honda CBR125R 2004-2017
Fit for Honda FS125 Sonic 2001-2008

(Compatibility Chart is for Reference ONLY!!!)
(Please Compare with Your faulty unit and the image we provided to Decide Fitment)

Package Includes:
1x 58mm Cylinder (12100-KGH-900)
1x Piston
1x Piston Ring Set
1x Wristpin
1x Circlip(2)
1x Cylinder Base Gasket (12191-KGH-901)
1x Cylinder Head Gasket
1x Tensioner Gasket
2x Valve Stem Seals

Note:
This cylinder(Sonic 125) is NOT the complete same look as the original CBR125, the crankcase suface need to modify, please don't purchase if you can NOT accept.

Carefully compare to your old parts to be sure this is the correct part for your machine.

The product on offer is an accessory or spare part and thus is not an original product of the vehicle manufacturer.
The name of the vehicle manufacturer is stated only as an indication of the determination of the product being offered as an accessory or spare part, to clarify, for which vehicle the product on offer Fits.

Warranty:
Returns: Customers have the right to apply for a return within 60 days after the receipt of the product
24-Hour Expert Online: Solve your installation and product problems

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
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
SKU: 12727347702

Discover Niche Categories That Outsell

Top-Converting Item to Boost Your Average Order

4.6 ★★★★★
Based on 23 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
T
Verified Purchase
The Pebble
New York, US
★★★★★ 4
Great as long as you don't mind the shelf down all the time.
Color: black
This mounts well and feels very sturdy and overall works quite well. The only complaint I have is that the shelf doesn't stay vertical when it's stowed. It needs some way to keep it from falling down and hitting my head.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 24, 2026
M
Verified Purchase
Muskie1
Bozeman, US
★★★★★ 5
Perfect for shorts
Color: black
Easy to install and the perfect drying rack for leggings, shorts and tank tops. I like that you can fold the drying bars back into the wall to lay flat. Just what we needed for our small laundry room.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on July 17, 2025
P
Verified Purchase
Patricia F Gonzalez
Birmingham, US
★★★★★ 1
Parts don’t fit together! Unusable!!
Color: black, Color: black
So disappointed! The pieces do not fit like in the instructions or pictures. The top rack does not fit in the slots; it’s too wide. It’s unusable!!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 25, 2026
P
Verified Purchase
papf0106
Birmingham, US
★★★★★ 2
hopefully your rack comes with hardware!
Color: black
Tried to order this twice and both times it arrived without any hardware or hooks. This is disappointing since the size and design is perfect for my space. Undecided yet if I should try a 3rd time!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 2, 2026
C
Verified Purchase
CHEVELLE CAPERS
Houston, US
★★★★★ 3
Chipped rack and top rack does not stay up
Color: black, Color: black
Heavy duty and easy to put together, with the exception of the two screws for the top rack; the top rack does not stay in the up position on its own like I thought it would. I can’t open my cabinet door. I had to screw a hook in the wall to hold it up. It arrived with chips on the metal.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 26, 2026

recommand products