🏆 SIRRIS R46 TRAIL TUNE | LSC REAR SHOCK | Sur Ron Ultra Bee ⚡

The rear end to match your F43 forks. Versatile, aggressive and supportive, built to go fast over a wide variety of terrain 🔥

The R46 Trail Tune is a proper piggyback moto shock with a high flow Ø46 mm billet piston and a pressurised reservoir. Sporty and supportive without being harsh, it is the most versatile tune in the R46 range and the natural partner to the F43 Trail Tune fork.

Six spring rates, external compression and rebound adjustment, and a 16 mm hollow chrome shaft. This is full size motocross shock architecture scaled for the Ultra Bee.

⚙️ Key Specifications

• 🏗️ Architecture: Piggyback, steel spring
• 📏 Stroke: 85 mm
• 📐 Length: 320 mm
• ⚖️ Weight: 3.9 lbs / 1.76 kg (without spring)
• 🔵 Piston: High flow Ø46 mm, CNC 6061 billet aluminium, type 3 hard anodised
• ⭕ Piston Band: Hard band
• 🔩 Shaft: Ø16 mm OD chrome plated, induction hardened steel, hollow
• 🛡️ Shock Body: Seamless 6061 aluminium, type 3 hard anodised
• 🔧 Spring Retainer: Seamless 6061 aluminium, manual adjust with locking feature
• 🧱 Bottom Out: MCU bumper
• 🪶 Top Out: Rubber bumper
• 💧 Damping: Tunable compression and rebound
• 🛢️ Reservoir: Pressurised with floating piston
• 🎛️ Adjusters: External LSC compression and rebound
• 🧴 Seals: NBR

🏋️ Rider Weight Ranges & Spring Rates

Six spring options so the shock is sprung correctly for your weight straight out of the box. Listed weights are rider weight without riding gear, with 15 lbs of gear already factored into the ranges.

• 🟢 Light (130 to 160 lb): 75 N/mm spring
• 🔵 Medium (160 to 210 lb): 85 N/mm spring
• 🟡 Heavy (210 to 230 lb): 90 N/mm spring
• 🟠 X Heavy (230 to 250 lb): 95 N/mm spring
• 🔴 XX Heavy (250 to 280 lb): 105 N/mm spring
• ⚫ XXX Heavy (280 to 350 lb): 115 N/mm spring

📦 What's Included

• ✅ Sirris R46 Trail Tune rear shock
• ✅ Steel spring matched to your selected rider weight range
• ✅ Pressurised piggyback reservoir, factory charged
• ✅ Fitting hardware

🚀 Why Choose The R46 Trail Tune?

• ⚡ Balance your bike. Pairs directly with the F43 Trail Tune fork so the front and rear work together instead of fighting each other
• 💪 Ø46 mm high flow piston. Massive oil flow means real damping control instead of a spring with a token damper
• 🛢️ Pressurised reservoir. Floating piston keeps damping consistent as the oil heats up on long runs
• 🎛️ Fully adjustable. External compression and rebound so you can dial it in trackside
• 🛠️ Sprung for you. Six spring rates covering 130 to 350 lb, so no expensive respring after purchase
• 🏁 Moto grade build. Hard anodised 6061 body and a 16 mm induction hardened shaft

⚠️ Important — Please Read Before Ordering

🛠️ Made to order. Every R46 is built and sprung to your selected weight range. These are not held as generic stock items.

⏱️ Build time: approximately 5 to 15 working days.

🚚 Shipping time: approximately 5 to 10 working days depending on destination.

📅 Total estimated lead time: approximately 2 to 5 weeks from order. These are estimates and are not guaranteed.

🚫 Once your build has entered production, the order is non cancellable and non refundable due to the bespoke spring rate, valving and labour involved.

💬 We will keep you updated at every stage, from build confirmation through to dispatch.

📮 Order Tracking & Updates

Full tracking is issued the moment your shock leaves us. Once the parcel is with the courier, transit times are outside of our control and occasional courier delays can happen, particularly on international shipments. International customers may be responsible for any duties and taxes charged on import.

❓ Got Questions?

Not sure which spring rate you need, or whether Trail, MX or SX suits your riding? Message us before you order. We ride these bikes and we set this suspension up, so we will point you at the right spec rather than just take the sale 👊

Sirris R46 Trail Tune. Finish the job you started at the front ⚡🏆

Shop now at WGTracing.store 🔥