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CR125 Upper End

Products

Honda CR125 98-99 Piston Kit
Honda CR125 98-99 Piston Kit
SKU: Honda50
Includes piston, ring, circlips, pin & upper bearing. Click for part numbers.
$96.95
Wiseco 2126CS Ring Alternative
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Honda CR125 2001 Piston Kit
SKU: Honda53
Includes piston, ring, bearing, pin & clips. Click for part numbers.
$94.95
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Honda CR125 2005 Piston Kit (RS125 Alternative)
Honda CR125 2005 Piston Kit (RS125 Alternative)
SKU: SKU4208

The 2005 CR125 piston is domed and could be used as an RS125 piston alternative. Includes piston, ring, circlips, pin & upper bearing.

$79.95
Market price: $92.95 save 14%
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Wiseco 2126CS Ring (CR125 & RS125)
Wiseco 2126CS Ring (CR125 & RS125)
SKU: 2126CS

Replacement ring for Wiseco CR125 & RS125 pistons. Fits the stock CR125 piston with a little filing at the dowel pin groove in the ring.

$17.50
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Wiseco Circlips (15mm)
Wiseco Circlips (15mm)
SKU: CW15
Spare clips for the CR125 piston kits. (2 clips included)
$2.50
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98-01 CR125 Ring - 13121-KZ4-A91
SKU: 13121-KZ4-A91
Ring - 13121-KZ4-A91 (supersedes 13121-KZ4-702)
$12.95
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Honda CR125 Upper Piston Pin
SKU: 13111-KV3-000
13111-KV3-000 (replaces 13111-KZ4-000)
$12.95
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Honda CR125 Upper Rod Bearing, 98-01
SKU: Honda65
$8.95
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Honda CR125 1999 Cylinder : 12110-KZ4-J10
Honda CR125 1999 Cylinder : 12110-KZ4-J10
SKU: 12110-KZ4-J10
Honda CR125 1999 Cylinder : 12110-KZ4-J10
$364.95
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Honda CR125 2001 Cylinder : 12110-KZ4-L10
SKU: 12110-KZ4-L10
Honda CR125 2001 Cylinder : 12110-KZ4-L10
$394.95
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Honda CR125 Dowel Pin for '01 Head: 94301-06100
Honda CR125 Dowel Pin for '01 Head: 94301-06100
SKU: 94301-06100

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$2.00
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Swedetech Prepped "Stock Moto" 2001 CR125 Cylinder
Swedetech Prepped "Stock Moto" 2001 CR125 Cylinder
SKU: SKU42420

Brand new, prepped by Swedetech Racing Engines. Power valves plugged & blended. In addition, the nut surface is spot faced for a flat surface to reduce the chance of stud failure. Cylinder head, Powervalve covers, hardware, gasket, piston kit not included. ONLY as shown in picture. Unopened in sealed box with Swedetech tape.

$1032.00
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CR125 Cylinder Head Studs - 90011-KZ4-700
CR125 Cylinder Head Studs - 90011-KZ4-700
SKU: 90011-KZ4-700
Stock CR125 cylinder head studs. Sold individually. 5 required.
$4.75
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Honda Cylinder Head Nut - 94050-08000
Honda Cylinder Head Nut - 94050-08000
SKU: 94050-08000
OEM Honda CR80 or CR125 "Flanged" cylinder head nut with 12mm hex. Sold individually. 5 required.
$0.80
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Honda CR125 Exhaust Manifold Flanged Nut - 94050-06000
SKU: SKU49624
OEM exhaust manifold nut. Sold individually. 3 required.
$0.95
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Honda CR125 Exhaust Manifold Stud - 90006-HA8-630
SKU: 90006-HA8-630
OEM exhaust manifold stud. Sold individually. 3 required.
$2.50
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Honda CR80 / CR125 Cylinder Dowels (10x16mm)
SKU: 94301-10160
Alignment dowel pins for the CR80 and CR125.
$1.95
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98-99 CR125 Base Gasket (Various thickness)
SKU: td20
Used to adjust Squish Clearance.
$2.00
Thickness
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Honda CR125 Base Gasket, 98-99
Honda CR125 Base Gasket, 98-99
SKU: 12191-KZ4-J00
CR125 98-99 Base Gasket: 12191-KZ4-J00
$8.95
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Honda CR125 Base Gasket, 00-01
SKU: 12191-KZ4-L10

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$7.95
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Honda CR125 Head Gasket, 98-99
Honda CR125 Head Gasket, 98-99
SKU: 12251-KZ4-701
CR125 98-99 Head Gasket: 12251-KZ4-701
$14.95
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Honda CR125 Head Gasket, 00-01
Honda CR125 Head Gasket, 00-01
SKU: 12251-KZ4-A91
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$10.95
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Honda CR125 98-99 Cylinder Head: 12200-KZ4-J00
Honda CR125 98-99 Cylinder Head: 12200-KZ4-J00
SKU: 12200-KZ4-J00
Stock OEM head.
$76.95
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Honda CR125 00-01 Cylinder Head : 12200-KZ4-A90
Honda CR125 00-01 Cylinder Head : 12200-KZ4-A90
SKU: 12200-KZ4-A90

Stock OEM head.

$75.95
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CR125 Power Valve Plug Set - 1999
CR125 Power Valve Plug Set - 1999
SKU: SKU1082

These are stock plugs....not yet blended to match the exhaust port. Fits 97-99 CR125 cylinders. O-rings included.

$48.00
Market price: $60.00 save 20%
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SharkShifter Cylinder Power Valve RH side cover 2000 & 2001
SharkShifter Cylinder Power Valve RH side cover 2000 & 2001
SKU: SH-22
2000 & 2001 Cylinder Power Valve Right Hand Cover finished in black anodize includes fasteners.
$14.95
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SRS CR125 Power Valve Plug Set - 2001
SRS CR125 Power Valve Plug Set - 2001
SKU: SKU34846

Top performing, precision, investment cast power valve plugs for the 2001 CR125 cylinder are now available from SRS Engines.

The shape of the exhaust duct in the 2001 cylinder is critical to power production. The stock 2001 power valve shape sacrifices peak power to give the engine a broad motocross power band that has good response as low as 6000 rpm. Since stock 125 shifter karts operate above11000 rpm most of the time, they can ignore low rpm power in trade for power gains above 11000 rpm.

SRS has identified the duct shapes in the 2001 cylinder that give top level performance in the shifter kart rpm range. These shapes have been captured with computer solid modeling techniques and incorporated into the SRS 2001 CR125 power valve plugs.

A precision investment casting process was used to preserve the shapes of the solid models with a high degree of accuracy in the production power valve plugs. When the plugs are installed in the cylinder and properly blended for smooth transitions between the cylinder and plugs, the maximum power potential of the stock 2001 cylinder can be achieved.

Detailed instructions included.
$135.00
Market price: $169.00 save 20%
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Replacement O-rings for CR125 Power Valve Plugs - SOLD INDIVIDUALLY
SKU: SKU17143
Sold individually.
$1.50
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Swedetech BLENDED & MATCHED CR125 Power Valve Plug Set
Swedetech BLENDED & MATCHED CR125 Power Valve Plug Set
SKU: SKU2755
These plugs are blended by Swedetech to match the the exhaust port profile. Fits 97-99 CR125 cylinders. O-rings included.
$100.00
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CR125 Joint for Water Hose Connection
CR125 Joint for Water Hose Connection
SKU: 12103-KZ4-700
O-ring not included.
$39.95
Include O-ring
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