
The facts.
| Part number | BS004 |
|---|---|
| Type | Thumb rear brake master cylinder bracket |
| Material | Aluminium, CNC-worked |
| Fitment | Accossato component, no vehicle-specific fitment |
| Road approval | No ABE documented; check local rules |
DescriptionThe whole story▼
The BS004 is the mounting bracket Accossato builds to carry its thumb-operated rear brake master cylinder, machined from aluminium on CNC equipment rather than cast or stamped. It is a small, single-purpose part: nothing on the bracket itself adjusts or has options, it exists to hold the thumb brake master cylinder in the position Accossato designs it for. It is made in Italy.
Key Features
- Mounting bracket for Accossato's thumb rear brake master cylinder
- CNC-worked aluminium construction
- Designed specifically for Accossato's thumb brake master cylinder
- Single-purpose mounting bracket, no adjustment
- Sold as a standalone spare part
- Made in Italy
Construction and Material Quality
Accossato machines the BS004 from aluminium on CNC equipment, the same construction method it uses across its brake and clutch hardware, rather than a cast or pressed bracket. Being a mounting part rather than a moving one, there is little to the BS004 beyond the aluminium itself: it is sized and shaped to carry the thumb rear brake master cylinder in place, made in Italy like the rest of Accossato's catalogue.
A Single Job: Holding the Thumb Brake in Place
Thumb-operated rear brakes move the brake control from the conventional right-side foot pedal to a thumb-actuated lever near the left grip, a layout mostly associated with off-road and motocross-style riding, where reaching a foot pedal is harder while standing on the pegs. The BS004 does not change how that brake works; it simply gives Accossato's thumb brake master cylinder a fixed mounting point, built specifically for that one component rather than as a universal clamp that could carry other hardware.
Fitment and Compatibility
Accossato builds the BS004 specifically to carry its own thumb rear brake master cylinder; no other application is documented for it, and no motorcycle-specific fitment is named. Anyone fitting it should start from the thumb brake master cylinder itself, confirming it is the Accossato unit this bracket is designed for, since the BS004 is not described as a generic or adjustable mount for other brands' hardware.
Road Approval
There is no ABE or parts certificate documented by Accossato for the BS004; registration rules depend on the country, so check before road use.
Scope of Delivery
1x Accossato BS004 bracket for the thumb rear brake master cylinder.
Specifications
- Part number: BS004
- Type: Thumb rear brake master cylinder bracket
- Material: Aluminium, CNC-worked
- Fitment: Accossato component, no vehicle-specific fitment
- Road approval: No ABE documented; check local rules
What's includedEverything in the box▼
- 1x Accossato BS004 bracket
FitmentWhich bikes this fits▼
Universal product — Please check whether it fits your bike.
Questions, one topic at a time.
Get the real shipping cost for this item to your address — the same rates as checkout.
Choose a destination and hit Estimate — we fetch the live rates for this item.
We’re based in Germany. Standard delivery goes by DHL and national postal services and takes about 2–5 days within Germany, 1–2 weeks within the EU and 2–6 weeks outside the EU. Need it sooner? Express delivery reaches most of the world within a few days — just choose it at checkout where available.
Your exact shipping cost is calculated by destination and weight and shown at checkout before you pay — no hidden fees. Express delivery is selectable at checkout where available.
Yes, we ship to over 130 countries. Prices, taxes and delivery times for your destination are calculated automatically at checkout.
Within the EU, no — our prices already include all duties and EU VAT. For deliveries outside the EU (e.g. Switzerland, the UK or the USA), your order may be subject to import duties and taxes set by your country. These are collected by the carrier when your parcel arrives, aren’t included in our prices, and are outside our control.
As soon as your parcel ships we email you a tracking link, so you can follow it all the way to your door.
On out-of-stock items you can request a delivery time or leave your email to be notified the moment it returns — just use the notification box on the product.
You have the right to cancel within 14 days of receiving your order. Register your return by email first; once it’s approved you have a further 14 days to send the goods back. Items should be unused and in their original packaging.
Register your return by email with your order number before sending anything back, and we’ll send you the return instructions. Please note: returns that aren’t registered in advance can’t be accepted.
The quickest way is to place a new order for the size you need and register a return for the original by email — just let us know it’s an exchange.
We’re sorry — that shouldn’t happen. Contact us with your order number and a photo as soon as you can, and we’ll arrange a replacement or refund right away. Faulty goods are always covered by your statutory warranty.
Refunds go back to your original payment method, usually within 3–5 working days of your return reaching our warehouse.
PayPal, all major credit and debit cards (Visa, Mastercard, American Express), Klarna (pay later and instalments), Apple Pay, Google Pay and more — all processed securely via PayPal and Mollie.
Yes. Choose Klarna at checkout to split your purchase into flexible monthly installments.
Your payment is taken when you place your order. If you choose Klarna, you pay later according to Klarna’s terms.
Every payment runs over an SSL-encrypted connection through certified providers. We never see or store your full card details.
If your order hasn’t shipped yet, contact us as soon as possible and we’ll do our best to change or cancel it.
No — you can check out as a guest. An account simply lets you track orders and reorder faster.
For customers in the EU, prices are shown including your country’s local VAT. For customers outside the EU, prices are shown without VAT — instead, your country’s import taxes and duties may apply on delivery (see the customs question).
Yes. Your invoice is attached to your order confirmation email and is also available in your account.
Yes. We’re an authorised dealer, so every product is 100% original and comes with the full manufacturer warranty.
Yes. Everything we sell is genuine and comes with the manufacturer’s warranty, on top of your statutory rights. Keep your invoice as proof of purchase and contact us if you ever need to make a claim — we’ll help you through it.
Our team is happy to help. Use the contact button below and we’ll personally help you choose the right gear or part.
Measure your head circumference about one centimetre above your eyebrows and compare it with the size chart on this page. Between sizes? Choose the smaller one — the padding beds in with use.
Yes — it’s tested and approved to the current ECE 22.06 standard and road-legal across the EU.
Most of our touring and sport helmets are Pinlock-ready and many include the insert. Check the ‘What’s in the box’ section on this page for this model.
Yes — the cheek pads are channelled so the arms of your glasses slide in comfortably.
Take out the washable lining and hand-wash it in lukewarm water. Clean the shell and visor with a soft cloth and water only — never solvents.
Our team will personally help you choose the right gear or part — around 24h for a reply.