Print

Select the information you want to print

Print Nevermind
Free Shipping on orders over 99*. Learn More
  $799.99  $499.99
Add to Cart
Add to Wish List
In stock online

Quick Support

Parts and Upgrades Question and Answers Manuals
Image for Speed R2103 Engine from HorizonHobby
+ / - Hover over image to Zoom
Speed R2103 Engine
  • Overview
  • Specs
  • Reviews
  • Parts & Accessories
  • Manuals & Support
Bore: 0.63 in (16.1 mm)
Crankshaft Threads: UNF 1/4-28
Cylinders: Single
Displacement: 0.213 cu in (3.49 cc)
HP: 2.76 hp @ 33,000 rpm
Height: 3.58 in (91 mm)
Length: 3.70 in (94 mm)
Plug Type: T-RP7 Turbo Glow Plug
RPM Range: 4,000 - 45,000 rpm
Recommended Fuel: 10-30% nitro content fuel
Stroke: 0.68 in (17.2 mm)
Total Weight: 12.0 oz (340 g)
Width: 1.77 in (45 mm)

Parts Listing

Needle Holder 21M: 21XZ-R
$13.99  $12.99
In Stock
Add to Cart
O-Ring Large: FS90IIS
$4.49
In Stock
Add to Cart
Set Screw #2D #4BK-#5B
$4.49
In Stock
Add to Cart
Carburetor Body: 21M(B), 21XZ-R Speed
$99.99  $89.99
In Stock
Add to Cart
Cylinder Piston Assembly: R2103 Speed
$199.99  $179.99
In Stock
Add to Cart
Universal Nipple: #15, 21M
$8.49
In Stock
Add to Cart
Carburetor 21M2-B: Speed R2101
$159.99  $139.99
Backorder
Backorder
Mixture Control Valve 21M
$17.99  $15.99
In Stock
Add to Cart
Rear Bearing: 21VZ, 30VG
$64.99  $57.99
In Stock
Add to Cart
Crankshaft: R2103 Speed
$219.99  $189.99
In Stock
Add to Cart
Metering Needle Assembly 21M2(B) Speed: R2101
$16.99  $15.99
Backorder
Backorder
Cap Screw Set M2.6x7: 18TZ
$7.49
Backorder
Backorder
Cover Plate: R2101 Speed
$20.99  $18.99
In Stock
Add to Cart
Inner Head: R2101 Speed
$54.99  $47.99
Backorder
Backorder
Carburetor Retainer: 30VG
$11.99  $10.99
Backorder
Backorder
Piston Pin: 21XZ-R
$7.49
In Stock
Add to Cart
Dust Cover: 30VG
$8.99
In Stock
Add to Cart
Needle 21M: 21XZ-R
$11.99  $10.99
In Stock
Add to Cart
O-Ring IV PRC #6H Rubber
$4.49
In Stock
Add to Cart
Carburetor Retaining Screws: 2.6x18mm (10)
$7.49
In Stock
Add to Cart
Outer Cylinder Head: R2103 Speed
$99.99  $89.99
In Stock
Add to Cart
Gasket: #3A2CBD
$4.49
In Stock
Add to Cart
O-Ring Small #2K #2SB
$4.49
In Stock
Add to Cart
RP7 Turbo Glow Plug Cold On-Road
$16.99  $15.99
In Stock
Add to Cart
Piston Pin Retainers: Speed T1202 (6)
$7.99
Backorder
Backorder
Exhaust Gasket: 21RZ
$11.99  $10.99
In Stock
Add to Cart
O-Ring Metal Valve: 120Surpass
$4.49
In Stock
Add to Cart
Dust Cap Set: 12-30 Class
$7.49
In Stock
Add to Cart
Cylinder Head Screws: 56 FS
$7.49
Backorder
Backorder
Ball Link #3 20K: 21VZ-R
$14.99  $13.99
In Stock
Add to Cart
Head Gasket: 0.1, 0.15, R2101 Speed
$7.99
Backorder
Backorder
Cover Plate Gasket: 35AX
$7.99
Backorder
Backorder
Connecting Rod: R2102, Speed 21XZ-GT
$54.99  $47.99
In Stock
Add to Cart
Gasket Carburetor: 61-108
$4.49
In Stock
Add to Cart
Slide Valve 21M
$32.99  $29.99
In Stock
Add to Cart
Slide Valve Stop Screw #21J
$8.99
In Stock
Add to Cart
Cylinder Piston Rod Rebuild Kit: R2103 Speed
$259.99  $229.99
In Stock
Add to Cart

Optional Accessories

12V DC Nitro Engine Heater
$59.99  $39.99
Backorder
Backorder
T-2080 Manifold Assembly
$69.99  $61.99
In Stock
Add to Cart
T-2080 Silencer Clamp
$11.99  $10.99
Backorder
Backorder

Manuals

FAQs

Product Support Tips

Product Support

You Might Also Consider

12V DC Nitro Engine Heater

12V DC Nitro Engine Heater

  $59.99  $39.99