Tubing, spears, replacement parts
Rubbers & shafts
Tropical humidity chews through latex. Keep spare rubbers and double notched spears on the shelf.
Relaunch pricingSale Rubbers & shafts
Rubber Blue 14mm 50cm- (Snapper & Mahi 90)
Relaunch pricingSale Rubbers & shafts
Rubber Blue 14mm 55cm- (Snapper & Mahi 1m)
Relaunch pricingSale Rubbers & shafts
Rubber Blue 14mm 60cm- (Snapper & Mahi 1.1m)
Relaunch pricingSale Rubbers & shafts
Rubber Blue 14mm 65cm- (Snapper & Mahi 1.2m)
Relaunch pricingSale Rubbers & shafts
Rubber Blue 16mm 55cm- (Sparid Shanti Kawa Scorpia 1m & GT/Tuna 90)
Relaunch pricingSale Rubbers & shafts
Rubber Blue 16mm 60cm- (Sparid Shanti Kawa Scorpia 1.1m & GT/Tuna1m)
Relaunch pricingSale Rubbers & shafts
Rubber Blue 16mm 65cm- (Sparid Shanti Kawa Scorpia 1.2m & GT/Tuna1.1m)
Relaunch pricingSale Rubbers & shafts
Rubber Blue 16mm 70cm- (Sparid Shanti Kawa 1.3m & GT/Tuna1.2m)
Relaunch pricingSale Rubbers & shafts
Speargun Latex Tubing- 14mm R A Spec (blue) pm
Relaunch pricingSale Rubbers & shafts
Speargun Latex Tubing- 16mm R A Spec (blue) pm
Relaunch pricingSale Rubbers & shafts
Speargun Latex Tubing- 14mm (black) pm
Relaunch pricingSale Rubbers & shafts
1.3M X 7MM DOUBLE NOTCHED SPEAR
Relaunch pricingSale Rubbers & shafts
1.4M X 7MM DOUBLE NOTCHED SPEAR
Relaunch pricingSale Rubbers & shafts
1.5M X 7MM DOUBLE NOTCHED SPEAR
Relaunch pricingSale Rubbers & shafts
1.4M X 7.5MM DOUBLE NOTCHED SPEAR
Relaunch pricingSale Rubbers & shafts
1.5M X 7.5MM DOUBLE NOTCHED SPEAR
Relaunch pricingSale Rubbers & shafts
1.6M X 7.5MM DOUBLE NOTCHED SPEAR
The engineering case
The consumables that make or break a gun.
Spearguns are only as good as the rubber, shaft, and wishbone keeping them working. Rob Allen tests every component to destruction and publishes the numbers. Here's what the data shows.
316 stainless bends at 95kg. Spring steel holds past 180kg.
Rob's 2023 load-cell test on two shafts of the same 7.5 mm diameter. The stainless "premium" shaft took a permanent bend at ~95kg. The Rob Allen plated spring-steel shaft held past 180kg without deformation. If you shoot rock a lot in Thailand, spring-steel is the only shaft worth owning.
Watch Rob Allen's test →Squared barbs — 15% more penetration in 2025
Rob's new squared barb design, available on 7.5mm and 8mm spears, gives about 15% more velocity than the traditional radiused barb — which translates directly to 15% more penetration. The three-faceted barb is recessed into the three sides cut by the muzzle, dropping drag on release. Stronger too in Rob's break test.
Watch Rob Allen's test →Latex power decay — measured at 400% stretch
Rob stretches bands to 400% and measures power loss over time. His Pacific-sourced dipped latex holds power longer than extruded rubber and the cheap dipped competitors he's tested. He re-tests his supplier regularly and would switch if something better appeared.
Watch Rob Allen's test →Layered dipping vs single-press
Rob's rubber is made by a layered dipping process — like how candles are made. Dip, dry, re-dip, dry, building up the tube in layers. Gives the best elasticity with the least additive chemicals in the rubber. Cheaper rubbers are extruded or single-press — faster to make, worse performance, shorter life.
Watch Rob Allen's test →Wishbone knot + stainless crimp failure points
Rob has break-tested wishbone knots, dyneema lines, and stainless crimps. Every rigging component has a known failure load on the channel. Buying rigging parts that haven't been tested is guessing. Rob Allen rigging hardware has been.
Watch Rob Allen's test →Tropical humidity accelerates decay
Cold water = slower rubber (lost elasticity). Hot humid storage = faster decay. Thai conditions fall on the bad side of both. I recommend 4-8 month rubber replacement intervals here, not the 12+ months some guides suggest for temperate climates. Air-conditioned storage between trips helps.
Watch Rob Allen's test →Planning a rubber + shaft order? The matching calculator is at /tools/rubber-shaft-calculator.
Before you buy
Rubbers & shafts — common questions
How do I pick the right rubber diameter? +
Match what came on your gun: 14mm for lighter setups (Snapper, Scorpia), 16mm for harder-hitting and bluewater, 18mm+ for heavy pelagic shots. Wrong diameter means bad power transfer.
How often should I replace rubbers? +
When you see surface cracking, loss of stretch, or colour fading — or every 6-12 months in Thai heat, whichever comes first. Old rubber loses velocity and will eventually snap.
What length cut for my gun? +
Cut so the wishbone reaches the spear notch with 330-370% stretch at full load. Too short cuts rubber life, too long kills power. WhatsApp us for cut-length on your specific gun.