Powder-Coated Steel Mounting Bracket
Matte black powder-coated steel bracket that brings the instruments closer to the handlebars and fork for a more compact Triumph cockpit.
Mini Speedometer Housing for Triumph Bonneville T100 LC / T120 / Street Cup / Thruxton / Speed Twin 1200
A compact CNC-machined aluminium speedometer housing that replaces the complete plastic case around the original Triumph twin clocks. Retains the factory electronics, functions, warning lights and riding-mode displays.
Fits Triumph Bonneville T120, T100 LC, Street Cup, Thruxton 1200, Thruxton R, Thruxton RS and Speed Twin 1200.
Bonvent Motorbikes
CNC-Machined Mini Speedometer Housing for Triumph
Product Overview
The original Triumph speedometer and tachometer sit inside a bulky plastic housing, set well forward of the handlebars. Bonvent makes the assembly more compact by replacing that entire outer case with a smaller CNC-machined aluminium housing. The original speedometer and tachometer electronics are retained, along with all factory functions, warning lights and riding-mode displays. You keep the familiar twin-clock layout with a cleaner profile and a refined metal finish.
Compatibility
- Triumph T120 — all years
- Triumph T100 LC liquid-cooled — 2017 onwards
- Triumph Street Cup — all years
- Triumph Thruxton 1200 — all years
- Triumph Thruxton R — all years
- Triumph Thruxton RS — all years
- Triumph Speed Twin 1200 — all years
A Complete Aluminium Speedometer Housing
The Bonvent housing replaces the original plastic case rather than fitting over it as a decorative cover.
Remove the original Triumph instrument cluster from the motorcycle, open the plastic housing and transfer the speedometer and tachometer electronics into the Bonvent aluminium case.
The complete outer housing is replaced, including the underside.
Smaller Speedometer Housing, Closer to the Handlebars
The housing is designed to minimise the space around the original twin clocks while keeping their electronics intact.
The supplied steel bracket has a matte black powder-coated finish. It brings the instruments closer to the handlebars and fork, creating a more compact cockpit than the original mounting arrangement.
It suits a Bonneville café racer, a T120 scrambler, a custom Thruxton or a Speed Twin tracker, and offers a discreet cockpit upgrade for the Street Cup.
Keep the Triumph Electronics Without a Conversion Module
Fitting a universal aftermarket gauge to a liquid-cooled Triumph generally involves an electronic interface module and additional wiring. Depending on the setup, some original warning lights, controls or riding-mode information may be displayed differently or become unavailable. The Bonvent housing keeps the original Triumph speedometer and tachometer electronics, so you can reduce the size of the housing without taking on that conversion.
The factory warning lights, display operation and riding-mode information remain available as they are on your original instruments.
Fits Original and Custom Triumph Setups
The housing can be fitted with the original headlight, handlebars and fork. It works on an otherwise standard motorcycle as well as a custom build, with no headlight conversion or cockpit modification required.
CNC-Machined Aluminium, Satin Black Finish
The lightweight, durable CNC-machined aluminium case replaces the original plastic shell with a precisely finished metal housing.
Its satin black finish sits naturally alongside black handlebars, headlight brackets and fork components on a modern classic Triumph.
Weather Sealing and Breathable Vent Membranes
A silicone gasket seals the joint between the two main housing sections. Breathable membranes on the underside follow the same sealing and ventilation principle as the original Triumph case to protect the electronics.
The membranes help regulate internal pressure and moisture.
Never direct a pressure washer at the housing.
Installation
Remove and open the original instrument cluster, transfer its electronics into the Bonvent aluminium housing, then refit the assembly using the supplied bracket.
Reuse the original Triumph rubber anti-vibration mounts. The factory wiring and connector are retained, with no wiring modification required.
Allow around 2–4 hours with basic tools. A detailed video installation tutorial will be available soon.
Note: The original Triumph instrument electronics and rubber anti-vibration mounts are reused during installation.
Kit Contents
CNC-Machined Aluminium Speedometer Housing
A complete CNC-machined aluminium replacement for the original plastic twin-clock housing. It retains the Triumph speedometer and tachometer electronics and reuses the original rubber grommets to keep the instruments isolated from vibration.
Optional Installation Service
Bonvent Installation Service – EU Customers Only
For €80, Bonvent can transfer your original Triumph instrument electronics into the aluminium housing and return the assembly for fitting to your motorcycle. This optional service is available to EU customers only. It is not offered in the UK, USA or other non-EU destinations because of the customs arrangements involved in sending instruments back and forth.
Before and After: A Smaller Triumph Speedometer Housing
Before
After
Drag the handle to compare before and after installation.
Product guide
Looking for a More Compact Triumph Speedometer?
The original speedometer and tachometer on a Bonneville, Thruxton or Speed Twin work well, but their large plastic housing can feel out of place on a custom build. Replacing a functioning instrument cluster is not the only way to reduce its bulk.
The Bonvent Mini Speedometer Housing replaces the plastic case with compact CNC-machined aluminium. You retain the original twin-clock arrangement and electronics, with a cleaner cockpit and a more refined finish.
What Does a Triumph Speedometer Conversion Module Do?
A speedometer conversion module, sometimes called a speedo box or instrument interface, connects a universal aftermarket gauge to the motorcycle’s electronics when the original Triumph instruments are removed.
On the Bonneville T100 LC and T120, Street Cup, Thruxton 1200 and Speed Twin 1200, the instruments display more than speed and engine rpm. They also show warning lights and information for systems such as riding modes, ABS and traction control, where fitted.
An aftermarket gauge from brands such as Motogadget, Acewell, Koso or Daytona generally needs a compatible electronic interface for this conversion. Systems such as the Peak-Mod VIS-T PRO and Speedo Box LC are examples of modules used when replacing the original Triumph instruments.
A full gauge conversion can suit an advanced custom build where the smallest possible instrument is the priority. It also means budgeting for the interface, extra wiring and any changes to the available displays or functions.
The result depends on the motorcycle, gauge and interface chosen. Original warning lights or controls may be relocated, displayed differently or unavailable, so the complete setup needs to be considered before replacing the instruments.
A Smaller Speedometer Housing with the Original Triumph Functions
Bonvent takes a different approach: the original instruments remain, and only their outer housing changes.
The speedometer and tachometer electronics are transferred into a smaller CNC-machined aluminium case. The familiar twin clocks stay in front of the handlebars, preserving the classic Triumph layout.
The original warning lights, display operation and instrument functions are retained.
A Replacement Speedometer Housing, Not an Add-On Cover
A decorative instrument cover fits over the original plastic case. It changes the finish but leaves the bulky housing underneath, adding another layer around it.
The Bonvent housing replaces that plastic case entirely. The original electronics are transferred into the new aluminium housing, reducing the bulk instead of covering it.
For Bonneville, Thruxton and Speed Twin Custom Builds
This housing is designed for the listed liquid-cooled Triumph models: Bonneville T120, T100 LC, Street Cup, Thruxton 1200, Thruxton R, Thruxton RS and Speed Twin 1200. See the compatibility list above for model years.
Its compact form works with a Bonneville café racer, a T120 scrambler, a custom Thruxton or a Speed Twin tracker, as well as a motorcycle that otherwise retains its original setup.
The aim is straightforward: keep the classic twin-clock look and factory functions, with a smaller housing and a finish that matches the rest of the build.
FAQ – Mini Speedometer Housing for Triumph
Is this a complete replacement Triumph speedometer?
No. This is a replacement housing kit. The original Triumph speedometer and tachometer electronics are transferred into the CNC-machined aluminium case; new instrument electronics are not supplied.
Does it replace the whole housing or fit over it?
It replaces the entire original plastic outer case. The plastic housing is removed and the electronics are installed inside the Bonvent aluminium housing.
How are the original Triumph electronics protected?
A silicone gasket seals the two main housing sections, and breathable membranes sit on the underside. This follows the same sealing and ventilation principle as the original case. The original rubber anti-vibration mounts are reused on the mounting bracket.
Is the housing suitable for wet weather?
Yes. It is designed for normal road use in varying weather conditions. The silicone gasket seals the housing, while the breathable membranes help manage internal pressure and moisture. Never direct a pressure washer at the housing.
Can I keep the original Triumph headlight and handlebars?
Yes. The housing works with the original headlight, handlebars and front-end components. No headlight conversion or major cockpit modification is required.
What is a Triumph speedometer conversion module?
It is an electronic interface used to connect a universal aftermarket speedometer or tachometer to the motorcycle when replacing the original Triumph instrument cluster. Such conversions may use gauges from brands including Motogadget, Acewell, Koso or Daytona.
Does the Bonvent housing need a conversion module?
No. It reuses the original Triumph speedometer and tachometer electronics, so no Peak-Mod VIS-T PRO, Speedo Box LC or other gauge conversion module is needed.
Can I replace the speedometer on a Bonneville T100 LC or T120?
Yes. A universal gauge conversion generally requires an electronic interface and additional wiring. The Bonvent housing offers a way to make the original instruments more compact instead: it replaces their plastic case while keeping the electronics, factory functions and classic twin-clock layout.
What are the options for a Thruxton 1200 speedometer upgrade?
A universal aftermarket gauge can replace the original instruments, but a full conversion may involve substantial cost and electronic work. The Bonvent housing retains the original instrument electronics in a smaller case, without adapting a universal gauge.
Can I replace the speedometer on a Speed Twin 1200?
Yes. Fitting a universal gauge generally requires a compatible electronic interface and additional setup. The Bonvent housing keeps the original electronics and replaces only the outer plastic case, avoiding that conversion.
Can I fit a mini aftermarket gauge to a T100 LC or T120?
Yes, as part of a suitable custom build. Budget for the interface and wiring, and check which factory displays and functions the chosen setup retains. Bonvent reduces the size of the original instrument housing while keeping the Triumph electronics.
What should I consider before fitting a universal gauge?
Consider the complete cost, wiring work and electronic components involved. Depending on the motorcycle and gauge setup, some factory warning lights, controls or functions may be relocated, displayed differently or unavailable.
Should I choose a Motogadget conversion or keep the Triumph instruments?
A Motogadget conversion can suit an advanced build where a very small gauge is the priority and the additional cost and electronic work are planned for. The Bonvent housing keeps the original Triumph electronics, warning lights, display operation and twin-clock layout in a smaller aluminium case.
Do I need a Peak-Mod VIS-T PRO or Speedo Box LC?
No. These interfaces are used for conversions to compatible aftermarket gauges. The Bonvent housing retains the original Triumph electronics, so a conversion interface is unnecessary.
How does this differ from an aftermarket mini speedometer?
An aftermarket speedometer replaces the instrument itself. The Bonvent housing replaces only the case around the original twin clocks, preserving their electronics, warning lights, factory functions and retro layout in a more compact aluminium assembly.
Will the factory warning lights and functions still work?
Yes. The original Triumph electronics are retained, so the warning lights, display operation and instrument functions remain available as on the original motorcycle.
Does the original wiring need to be modified?
No. The housing reuses the original electronics and the same Triumph connector. No wiring modification is required.
How much smaller is it than the original Triumph speedometer housing?
The case is designed to be as compact as possible around the original instrument electronics. The supplied bracket also moves the twin clocks closer to the handlebars and fork than the original mount.
Can Bonvent install the housing for me?
Yes, for customers in the European Union. Our optional €80 service covers transferring your original instrument electronics into the Bonvent housing and returning the assembly for plug and play fitting to your motorcycle. It is limited to the EU to avoid customs complications with the return shipment. Contact us before sending your instruments to confirm the procedure and return arrangements.
Can Bonvent help if I install it myself?
Yes. Our technical support team can guide you through the installation on WhatsApp.
Which Triumph models does this version fit?
It fits the Bonneville T120, Street Cup, Thruxton 1200, Thruxton R, Thruxton RS and Speed Twin 1200 across all years. For the liquid-cooled T100 LC, it fits models from 2017 onwards.
Does it fit the Street Twin, Bobber, Speed Twin 900 or Scrambler 900?
No. This version is not listed as compatible with the Street Twin, Bobber, Speed Twin 900 or Scrambler 900.
Do you ship to the UK?
Yes. We ship to the UK from France. Local VAT, import duties or customs fees may apply. The optional Bonvent installation service is not available to UK customers.
Do you ship to the USA?
Yes. Shipping to the USA is available. Delivery times and any import charges depend on the destination and shipping method. The optional installation service is not available to customers in the USA.
Is international shipping available?
Yes. Bonvent ships this product to most countries. If your country is not listed at checkout, contact us so we can look into a shipping option. The optional installation service remains limited to EU customers.
Can I return the product?
An unused product can be returned within 15 days of delivery in accordance with our returns policy. It must be returned in good condition, without damage caused during installation.
What does the warranty cover?
The warranty covers manufacturing defects. It excludes damage caused by incorrect installation, misuse, accidents or modification of the product.
How long does installation take?
Allow around 2–4 hours with basic tools. You will need to remove and open the original instrument cluster, then transfer its electronics into the Bonvent aluminium housing.
Can I return to the original Triumph setup?
Yes, provided you keep the original parts. The installation is designed to be reversible, and the original instrument electronics and rubber anti-vibration mounts are reused.
Will this repair a faulty Triumph speedometer?
No. The housing does not repair faulty electronics, damaged wiring, sensors or instruments that no longer work. If only the original case is damaged and the electronics still function, the Bonvent housing can replace that case without buying a complete instrument cluster.