Economy Cycle

Economy Cycle Economy Cycle - Visit Economycycle.com Vintage Yamaha 2 stroke specialists. Yamaha RD350 RD400 RZ350

Yamaha RD350 RD400 RZ350, OEM and aftermarket performance parts and accessories.

One set remaining - Super deal on some great tires!
11/17/2025

One set remaining - Super deal on some great tires!

One set remaining Pirelli Sport Demon Tires for your RD or RZ! CLOSE OUT SALE - Save $130+ on the set with free shipping now!

10/15/2025

Keeping the legend alive, happy customers and blue smoke! It's what EC does every day!

If we've helped you with tech support and parts, one of the best ways to thank EC is with a google review.

Our latest google review:
"Economy Cycle is the "go to" place for the rare parts you will never find elsewhere for your vintage bike."

"Their customer service is what sets them apart. If you need advice or parts contact them and I can assure you you'll be happy to finally find a place that cares about you being satisfied with your purchase
Shipping was very fast also
John you and Terry are the best.. Thanks"

Thanks Tim, always a pleasure working with you and you've earned yourself a discount on your next purchase, just give us a call next time you need parts and mention this review.
John & Terry

For Sale: RD350, all the goodies, Lomas Pipes, DG heads, V**e ignition, rear sets, great condition, turn key bike, ready...
09/21/2025

For Sale: RD350, all the goodies, Lomas Pipes, DG heads, V**e ignition, rear sets, great condition, turn key bike, ready to ride, show & go!

1973 RD350 - Excellent Condition - Modified
(converted from RD250)

Clear Texas Title

🔥 Up for sale is a 1973 Yamaha RD350 – Fully Rebuilt, Performance Enhanced, Texas Title 🔥

This is not your average vintage RD350. This 1973 Yamaha has been meticulously rebuilt and upgraded with high-performance components, making it a rare find for collectors and two-stroke enthusiasts alike. Every detail has been addressed—from engine internals to suspension and braking—resulting in a bike that’s as thrilling to ride as it is to admire.
🛠️ Key Features & Upgrades:

Engine & Performance:
Rebuilt crank, new top end (pistons & rings), fully rejetted
V**e CDI electronic ignition for reliable spark
All new gaskets and OEM seals
Contemporary DG heads with toroidal combustion chambers
New Mikuni VM28 carbs with oil injection and throttle cable
High-performance FZR1000 clutch
Rebuilt autolube oil pump

Exhaust & Airflow:
Jim Lomas expansion chambers with kickstand relocation mod
Y-boot air filter for improved breathing
RZ350 intake manifolds with crossover tube
TDR Performance fiber reeds for crisp throttle response

Braking & Suspension:
Cross-drilled rotor (Blanchard ground)
New front master cylinder, caliper, and stainless braided line
New rear shocks and front fork springs

Chassis & Cosmetics:
Rear sets for aggressive riding position
Steering damper for improved handling & stability
Bridgestone Battlax tires - nearly new in great condition
New headlight with replaceable halogen H4 bulb
Many parts repainted, powder coated, and refinished
Numerous rubber components replaced
New battery

📜 Title & Condition:
Clear Texas Title (see note on VIN below)
Excellent mechanical and cosmetic condition
Garage-kept and professionally maintained

This RD350 is a turn-key classic with modern reliability and serious performance. Whether you're looking to add a showpiece to your collection or carve up back roads with two-stroke fury, this bike delivers.

A few notes:
This bike started life as a 1973 RD250 and was converted to an RD350 at some point prior to our ownership.

The VIN # is 352-101206, I used the title number for the action as ebay would not accept the old style Yamaha VIN numbers with 9 digits.

The bike has 183 miles showing on the guages. These were reset when the bike was partially restored some time ago by others. I would estimate the mileage on the bike to be in the 10k range at most, given the great condition, but virtually no miles on it since we completed our work, bike is still breaking in. I don't know the complete history of the bike, we purchased it as a partially finished custom project from the prior owner.

Economy Cycle - Specializing in parts, service and restoration for Yamaha RD's and RZ's. Check out our complete line of performance, aftermarket and reproduction parts.
$9,995

Fork Braces for the USA RZ350. $149.00. See link below picture for additional details.
07/04/2025

Fork Braces for the USA RZ350. $149.00. See link below picture for additional details.

We designed these new kits with RD enthusiasts in mind but also works with wide range of 2 strokes motorcycles and scoot...
09/22/2024

We designed these new kits with RD enthusiasts in mind but also works with wide range of 2 strokes motorcycles and scooters.
- Compact gauge works with engine in frame
- Metric - no conversion necessary
- 10mm, 12mm, 14mm adapters securely hold gauge allowing for accurate measurement
- 2 extensions allow for use on a wide range of engine displacement
- Custom foam fit carrying case
- Two year warranty, satisfaction guaranteed and a great price $79.95

We designed these new kits with RD enthusiasts in mind and includes the following specs / features Works with the engine in the frame (most dial gauges are too large and won't fit in the RD due to the frame rails sitting just above the heads) Metric Gauge - no need to convert from SAE

Cranky? Don't be, have your RD crank expertly rebuilt by Economy Cycle. This week's work includes a built up RD350 crank...
02/28/2024

Cranky? Don't be, have your RD crank expertly rebuilt by Economy Cycle.

This week's work includes a built up RD350 crank, several RD400 1A1 cranks, an RD400 2V0 rebuild and an RD400/Daytona hybrid crank.

Crankshaft rebuilding service RD/R5. Complete dis-assembly of crankshaft and rebuild includes the following: Note: This service includes all parts and labor to completely rebuild your crankshaft, trued to factory specifications or greater, ready to install.

Crankshaft dis-assembly
Cleaned, measured and bead blasted
New ProX rods
New Bearings - inner, outer (Yamaha OEM bearings)
New Small end, Big end bearings - optional upgraded
bearings available (RG500)
New Thrust Washers
New Pins
Re-assembly and truing to factory specifications or better
We offer a few options on this service - New labyrinth seal (normally does not need replacing), welding crank pins, upgraded bearings.
Rebuilding time is approximately 2-4 weeks depending on our work load in the shop
Your crank will be returned in a custom box stabilized with form fitting foam.
Note: Return shipping is $64.90 to any US location (Return shipping includes insurance and tracking)

more details
https://www.economycycle.com/shop/yamaha-rd250350400r5ds6ds7-parts/services/crankshaft-rebuilding/yamaha-rd-crankshaft-rebuilding-prox/

Address

5815 Acton Circle
Granbury, TX
76049

Opening Hours

Monday 12pm - 5pm
Tuesday 12pm - 5pm
Wednesday 12pm - 5pm
Thursday 12pm - 5pm
Friday 12pm - 5pm

Telephone

+12244307971

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