Bleedkit.com Basic Shimano Bleed Kit

Two pieces of the Shimano flat-bar bleed actually pay rent on the bench: a transparent funnel at the lever that lets you see the fluid column move, and a clean caliper-end syringe with a tube that seats squarely on the bleed nipple. The Basic Shimano kit ships exactly those two pieces plus the small parts that hold them together, on the bet that a home mechanic with one or two Shimano flat-bar bikes does not need a workshop's worth of inserts to do the job correctly. Mineral oil and bleed block are sold separately on the same logic.

What's in the kit

The lever funnel is a 30 ml transparent syringe body with a brass M5 thread, sized to drop onto any flat-bar Shimano master cylinder. A stainless threaded plug with a hanger closes the funnel for transport between bikes. The caliper end ships with a 20 ml syringe and a long-lasting tube, and a stainless tube insert guides the tube into the bleed nipple. One gravity-bleed clamp and a spare O-ring round out the kit.

Compatibility

The kit fits every flat-bar Shimano hydraulic brake: XTR, XT, Saint, Zee, SLX, Deore, Alivio, Acera, Alfine, Metrea. It does not fit drop-bar Shimano levers, which require both a brass M5 dropbar adapter and a smaller dropbar-specific bleed block; those parts live in the Premium Road and Workshop Master kits. It does not fit the 2026 Dura-Ace R9300 or Ultegra R8270 lever generation, which moved from M5 to M7 at the funnel. Shimano mineral oil and the matching bleed block are sold separately; the kit is sized around the home-mechanic who already has both on the shelf.

Specs

• Funnel: 30 ml transparent, brass M5 thread
• Caliper syringe: 20 ml with long-lasting tube
• Bleed block: not included
• Fluid: not included
• Made by Bleedkit.com (Ljubljana, Slovenia)

All 6 pieces are itemized in the In the box list below.

Made in Ljubljana, distributed by Euro Toolworks

Bleedkit.com builds per-brake-system kits in Ljubljana, Slovenia and has done so since 2011; distribution through Euro Toolworks is the same path that brings Unior cycling tools to the North American market. Unior has been forging hand tools in Zreče since 1919, and is the official technical partner of multiple World Tour and downhill teams. The Basic Shimano kit strips the family back to the funnel-and-syringe combination that does the work, leaves everything else at the supplier's catalog, and trusts the home mechanic to pair it with the fluid and block already on the bench.

Pro tip from our mechanics

A first-time Shimano bleed on a flat-bar lever runs cleanest if you start with the rotor off and the caliper off the frame. The 20 ml syringe and tube want the bleed nipple oriented straight up; that is easier to achieve in a bench vise than on a bike with the wheel still in. Once the caliper is bled, refitting it to the frame with the funnel still full at the lever lets you finish the gravity bleed without losing fluid column position.

Whether this kit is sized right for your bike or whether the bleed-block-and-oil-included Premium Shimano kit is the better starting point is laid out in our compatibility guide: Which bleed kit fits Shimano R9300, Ultegra R8270, and SRAM Maven Bronze →