TRIUMPH E12570 Rocker 1/2

( Manufacturer Part Number: E12570 ), ( Engine Type: 4-stroke ), ( Machine Type: Street Motorcycle ), ( Oe/oem Part Number: E12569 ), ( Country/region Of Manufacture: United Kingdom )

Review TRIUMPH Rocker Boxes 1/2 fits BONNEVILLE T120 650 1972

The Triumph Bonneville T120 1972 1/2 with the engine number E12570 and designation 650cc is a classic motorcycle model from Triumph's rich history. This motorcycle is renowned for its iconic design, timeless appeal, and smooth performance.

The E12570 Bonneville T120 is powered by a 649cc overhead valve parallel twin engine. This engine produces a respectable power output of around 42 bhp at 6200 rpm, delivered in a linear and tractable manner, allowing for a pleasant riding experience both in city conditions and on the open road.

The transmission features a four-speed gearbox with a multi-plate dry clutch at its heart. This configuration offers reliable performance and easy shifting, allowing riders to enjoy the engine's power momentum at their will. The crankshaft is rigidly mounted directly to the frame providing excellent engine stability and a pronounced engine feel.

The Bonneville T120's classic styling remains unchanged from its original design. The chrome fuel tank, with its signature Triumph badge, houses approximately 4.5 gallons of fuel. The seat, with its iconic twin pads, is a comfortable place to perch while navigating the urban jungle or cruising down the highway.

The 7-spoke alloy rims, finished in chrome, complement the overall visual appeal of the motorcycle. The Bonneville T120 rolls on tubeless tires, measuring 3.50x19 inches at the front and 4.10x18 inches at the rear. This combination ensures a comfortable ride with good grip and road-holding capability.

The 19-inch front and 16-inch rear drum brakes provide adequate stopping power. These brakes operate via a traditional cable pull system, maintaining the classic motorcycling feel. Suspension on the T120 is taken care of by conventional telescopic forks up front and dual shocks absorbers at the rear. The riding stance is relaxed yet sporty, giving the rider ample control and a commanding view of the road ahead.

The Bonneville T120 makes an excellent choice for traditional motorcycle enthusiasts looking for a reliable, stylish, and powerful machine. Furthermore, this classic motorcycle would be a valuable addition to any dedicated collection or for those who love riding with a vintage vibe. Maintenance, suspension upgrades, or minor cosmetic modifications can enhance the bike's performance and personal appeal.

Pros and Cons of Buying a Triumph Bonneville T120 (1972 1/2) with 650cc Rocker Engine

The Triumph Bonneville T120, introduced in 1959, is a classic British motorcycle celebrated for its vintage style and reliable performance. The 1972 1/2 model featured a 650cc rocker engine; here's an analysis of its pros and cons for potential buyers:

1. Timeless Design: The T120's classic look has remained largely unchanged since its inception, making it a desirable collector's item and a visual treat for motorcycle enthusiasts.

2. Smooth Engine: The 650cc rocker engine, characteristic of Triumph Twins of the era, offers a smooth and torquey riding experience, suitable for urban or long-distance riding. Its simplicity also makes it relatively easy to maintain.

3. Affordability: Owing to the advancing years of the T120 and the availability of numerous alternatives in the used market, prices for this model have remained reasonably affordable, making it an attainable dream for enthusiasts on a budget.

4. Vintage Feel: Owning a Triumph Bonneville T120 brings an authentic riding experience and a sense of nostalgia. The riding position is comfortable, and the minimalist controls place the rider at one with the motorcycle.

5. Community Support: The Triumph Bonneville T120 has a dedicated global following, ensuring that parts, advice, and restoration manuals are widely available.

1. Lack of Modern Features: The T120 can be a handful for some modern riders accustomed to electronic fuel injection, ABS, or digital instrumentation. The bike relies on a carburetor and electromechanical ignition system, which can require more frequent tuning.

2. Limited Performance: Although the 650cc engine delivers good low-end power, tops-out at a relatively modest speed when compared to contemporary motorcycles. Additionally, the T120's weight of 455 lbs limits its agility, making it less suitable for swift maneuvers.

3. Maintenance Requirements: While the simplicity of the T120's components is a pro for some, it can also be a con. Regular tune-ups, choke adjustments, and carburetor syncing are necessities to ensure a smooth riding experience.

4. Lack of Comfort: Though the riding position is comfortable for shorter rides, long-distance touring on a T120 can be tiring due to its firm saddle, limited wind protection, and the overall lack of modern ergonomics.

5. Limited Street-Legal Accessories: As a classic motorcycle, aftermarket modification and customization options are more limited, compared to modern motorcycles, making it difficult for some to personalize the bike.

Buying a Triumph Bonneville T120 with a 1972 1/2 650cc rocker engine appears to be a mixed bag - an appealing yet challenging investment for motorcycle enthusiasts. Its vintage look, smooth engine performance, and accessibility to parts and advice make it a worthwhile contender for those seeking a classic ride. However, prospective buyers should be prepared for the cons, such as the lack of modern features, limited performance, and substantial maintenance requirements.

If you're looking for a motorcycle that combines classic aesthetics with a minimalist yet reliable engine, the Triumph Bonneville T120 is definitely an option worth exploring. Choose one with a good service history to minimize the cost of potential repairs and be prepared for a more hands-on riding experience. For a smoother ride, consider modifications like modern suspension or upgraded lighting options.

Details:

Triumph 650 rocker boxes 1972 1/2 Bonneville T120V. One inspection cove has small chip in its fin see pictures. Please look closely at the pictures and ask questions. Includes 2 inspection covers part # E12572.

This mid year change in 1972 1/2 open rocker boxes as well push pipes. Part # E12570 exhaust E12569 inlet.

part #: e12570 prices

• $100.00-$555.99

specifications cylindermotorcycleiz:

• for models: T120, 650, Bonneville
• for makes: Triumph
• for years: 1972
• mpn: E12570
• engine type: 4-stroke
• machine type: Street Motorcycle
• oe/oem part number: E12569
• country/region of manufacture: United Kingdom

shipping cylindermotorcycleiz:

• service: UPS Ground
• cost: $14.59
• type: Calculated
• class: Standard
• transit: 4-8 Days
• carrier: UPS

payments cylindermotorcycleiz:

• wallet: Google-pay
• credit card: Diners-club
• other

seller cylindermotorcycleiz:

• rating: 99.4%
• city: Kalamazoo, Michigan
• # reviews: 5784

returns cylindermotorcycleiz:

• time: 30 Days
• policy: Returns Accepted
• paid by: Buyer

general cylindermotorcycleiz:

• condition: Used
• Motorcycle Scooter Parts Accessories > Engines Engine Parts > Cylinder Heads

offer cylindermotorcycleiz:

• options: Ship-to-home
• availability: In Stock
• started: January 10, 2025
• quantity: 1
• sold: 0

Triumph E12570 Is Similar To:

• 001374 British Standard Rocker Box Caps Covers For Triumph Motorcycles (34.6% similar) These brass rocker box caps are finned and have a hex on them for easy removal tightening. They are brand new and made in the USA, will fit 500 triumphs from 1963 and up. 30 day money back guarantee free expert tech support we eat, sleep, live love motorcycles. Shipping costs are based on the ...(August 9th, 2018)
• 1260910 Triumph Rare Nos Motorcycle Engine Rocker Cover Bonneville Truxton (46.7% similar) Please have a close look at the detailed pictures I added to offer. I bought this panel about 10 years ago from a triumph dealer however it was MI's-packaged. 50 in a box for best protection. The box said chrome however it had silver painted cast aluminum cover. This is a very tough piece to find in...(May 2nd, 2018)
• 14-0241 The Bonneville Shop Triumph Cylinder Head Bolt Frame Pn (27% similar) Don't have a parts book. These were also used on triumph 500 frames to connect the front loop rear 24TPI long bolt fits 750 model's from for deadbolt and stud kit here. Triumph 750 T140 TR7 cylinder head bolt 500 frame 1 pn bonneville and tiger...(June 27th, 2018)
• 21-2201 S2201 The Bonneville Shop Triumph Cylinder Head To Block Stud Pn (25.2% similar) Don't have a parts book. For triumph 750 deadbolt and stud kit here. Triumph 750 TR7 T140 cylinder head to block stud pn S2201 bonneville and tiger...(June 27th, 2018)
• 38-10304 70-3663 Triumph T120 Bonneville Cylinder Head Used 1969-70 Date Code 68 (36.4% similar) From this point simply follow's instructions parkland st. The cost of shipping motors, frames, and or complete motorcycles can be expensive. The shipping and handling price, if applicable, is not negotiable...(September 21st, 2016)
• 68-tr6-rb Triumph Trophy Rocker Box Cover Bonneville Kc (54.2% similar) This is a used oem rocker box cover removed from 1968 triumph trophy 650 TR6C...(October 11th, 2018)
• 70-0327 E327 82-2184 F2184 The Bonneville Shop Triumph Unit Outer Headbolt Washer Kit Pn (25.2% similar) Made in England. For new cylinders here. Purchase is for 4 each of the bolts washers. Triumph pre-unit unit 650 outer deadbolt washer kit pn E32782-2184 F2184 new production deadbolts supplied with correct thick washers. For head gaskets here...(October 3rd, 2018)
• 70-1564 Triumph Rocker Box Caps Tiger Daytona Set Of Free Shipping (40.3% similar) On offer is a used set of 4 rocker box caps for triumph 500 twins t1 Dayton etc. Made in England. The threads look fine. The threads are clean and they should seal perfectly...(March 6th, 2018)
• 70-1596 70-1596a E1596 E1596a The Bonneville Shop Triumph Headbolt Stud Torque Stay Uh Pn (26.3% similar) Need a parts book...(September 14th, 2018)
• Pre-unit 70-5350 70-5351 Set Exhaust Triumph Intake Rocker T110 70-3551 Box 70-3550 (32.9% similar) Triumph T110 pre unit intake exhaust rocker box set be sure this is the correct item for you prior to buying buying...(February 17th, 2015)
• 70-7911 Triumph Rocker Box Tr25w (46.3% similar) E-mail us with any questions regarding this item. Be sure this is the correct item for you prior to buying buying...(November 12th, 2017)