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Surron Bikes & Parts
SURRON BIKES & PARTS
Sirris F43 246mm Fork | Trail-Tune | LSC | Surron Ultra Bee Full Screen
Tracked Ground Freight
2 Years Limited Warranty
30-Day Hassle-Free Returns
Accessories & Gear

Sirris F43 246mm Fork | Trail-Tune | LSC | Surron Ultra Bee

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SKU: 430-99-001-LTE-XX 43MM USD, 856MM X 246MM, 25MM OFFSET, SURRON UB AM, LTE
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Brand: Sirris Store
$1912.50

Trail Tune is a very versatile and aggressive tune that is sporty and supportive, designed to go fast over a wide variety of terrain. RIDER WEIGHT SPECS: Sirr

In Stock

Product Overview

Trail Tune is a very versatile and aggressive tune that is sporty and supportive, designed to go fast over a wide variety of terrain.

RIDER WEIGHT SPECS:

Sirris offers six weight ranges to choose from when selecting your Trail Tune F43 fork. (

Listed weight ranges are rider weight without riding gear on. 15 pounds of riding gear is calculated into the weight ranges)

130 lbs - 160 lbs (Light = 4.0/4.0 springs)

160 lbs - 210 lbs (Medium

= 4.8/4.4 springs)

210 lbs - 230 lbs (Heavy

= 5.0/4.8 springs)

230 lbs - 250 lbs (X Heavy

= 5.0/5.0 springs)

250 lbs - 280 lbs (XX Heavy

= 5.4/5.0 springs)

280 lbs - 350 lbs (XXX Heavy

= 5.8/5.4 springs)

Fork spring rates listed above are left side/right side.

FORK SPECS:

Architecture

Upside down fork

Travel

246 mm

Free length

856 mm

Fork weight, includes clamps and steerer

22 lbs / 10kg

Stanchions

Ø43, high tensile steel with hard chrome

Outer tubes

Seamless 7050 aluminum, type 3 hard anodized coating

Drop outs

Forged 6061 aluminum, type 3 hard anodized coating

Triple clamps

Forged 6061 aluminum, type 3 hard anodized coating

Steer tube

Seamless 7050 aluminum, type 2 anodized coating

Damping

Symmetrical, adjustable closed cartridge with spring backed IFP

Damper bodies

Seamless 7050 aluminum, type 3 hard anodized coating

Rebound

Dual side high tensile steel spring, adjustable

Adjusters

External compression and rebound adjustment

Seals

NBR

Guards

High impact PP, 210-degree wraparound

Technical Specifications

BrandSirris Store
SKU Identifier430-99-001-LTE-XX 43MM USD, 856MM X 246MM, 25MM OFFSET, SURRON UB AM, LTE
Warranty Term2 Years Limited Warranty

5.0

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Shipping Policies

E-bikes ship with specialized heavy freight ground carriers in custom reinforced double-walled protective cartons. Delivery typically completes in 3–5 business days. Free shipping applies automatically to all orders over $500.

2-Year Limited Warranty

Surron electric bikes carry an extensive 2-year warranty covering frame integrity, motor internals, and electronic controllers against manufacturing defects. Battery packs are guaranteed to retain at least 70% capacity through 500 charge cycles.

Component Synergies

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