VOLspeed V4 is a hidden e-bike tuning module (tuning module) for Giant SyncDrive Sport, SyncDrive Pro, SyncDrive Life, and SyncDrive Core V4 drive systems from 2017 to 2023.
This module works with Giant displays (display) EVO, EVO-SG, CHARGE, and PLUS, and it is operated using compatible remote controls (control unit) ONE, DASH 2 IN 1-SG, ERGO-SG, and ERGO2-SG.
VOLspeed V4 lets you adjust the speed limit (speed limit adjustment), set wheel circumference (wheel circumference) and use dynamic mode (dynamic mode), with all settings made directly through your existing e-bike display.
Key benefits of the VOLspeed Giant SyncDrive V4 module
- Speed limit adjustment 25–45 km/h – set your preferred limit with the arrow buttons, and the last value is saved.
- On/off via remote buttons – control tuning using the handlebar control unit, with no extra switches mounted on the bike.
- Plug-and-play installation – connects to the motor plugs with no soldering and no wire cutting.
- Hidden motor-mounted fit – mounts invisibly on the motor from the outside, keeping the tuning module out of sight.
- Dynamic mode support – spreads the assistance cut-off (cut-off behavior) across a wider speed range to reduce the “wall effect”.
- Wheel circumference correction ±10% – fine-tune speed and distance calculations for more accurate ride data.
- Correct readings – speed, trip distance, and average speed remain correctly displayed.
- Correct total mileage – the module corrects kilometers in the motor control so overall mileage stays accurate even after removing tuning.
Who is this for?
This VOLspeed Giant SyncDrive V4 tuning module is designed for riders using Giant SyncDrive (Yamaha-based) mid-drive systems (mid-drive) in the Sport, Pro, Life, or Core V4 versions from model years 2017–2023.
It is intended for bikes equipped with EVO, EVO-SG, CHARGE, or PLUS displays (display), because setup and control are handled through the existing screen and buttons.
Compatibility also includes the ONE, DASH 2 IN 1-SG, ERGO-SG, and ERGO2-SG control units (control unit), which are used for switching and adjusting the saved speed limit and other settings.
Package contents
- VOLspeed tuning module for Giant SyncDrive Sport / Pro / Life / Core V4 (2017–2023)
- User manual (manual)
Technical specs
| Module version | VOLspeed V4 |
| Compatible drive systems | Giant SyncDrive Sport / Pro / Life / Core V4 (2017–2023), Yamaha-based mid-drive |
| Compatible displays | EVO, EVO-SG, CHARGE, PLUS |
| Compatible control units | ONE, DASH 2 IN 1-SG, ERGO-SG, ERGO2-SG |
| Speed limit range | 25–45 km/h (adjustable via arrow buttons, last value saved) |
| Wheel circumference adjustment | ±10% |
| Display values | Correct speed, trip distance, and average speed |
| Total mileage handling | Corrected in motor control; remains correct even if tuning is removed |
| Dynamic mode | Assistance cut-off distributed across a wider speed range |
| Activation control | Adjustable activation code (activation code) |
| Installation type | Plug-and-play; no soldering; no cable modification |
| Mounting location | On the motor; hidden from the outside |
| Housing dimensions | 37 mm × 19 mm × 9 mm (1.46” × 0.75” × 0.36”) |
| Cable length | Approx. 140 mm (5.5”) |
| Weight | 0.025 kg (0.9 oz) |
| Power consumption | 0.1 W |
| Supply voltage | 5 VDC |
| WEEE registration number | DE35476192 |
| Tools commonly needed | Torx TX20 / TX25 / TX30; Hex 5 mm / 6 mm / 8 mm |
| Extra tools (SyncDrive Pro) | ISIS crank puller; Giant / Yamaha PW-X lockring tool |
| Optional tools | Chain whip; chainring key |
Why choose VOLspeed V4 for Giant SyncDrive?
VOLspeed V4 focuses on adjustability through the bike’s existing display (display), so speed limit, wheel circumference, and dynamic mode settings are handled without external controllers.
The module supports a 25–45 km/h configurable limit, and it also lets you change the assistance reduction behavior (downshift / cut-off behavior), including moderate limit increases such as 32 km/h for a sporty feel and more restrained battery use.
It is built for a clean install on the motor with plug-and-play connectors, so the tuning stays hidden and the wiring remains unmodified.
FAQ
Which Giant systems is this VOLspeed V4 compatible with?
- Fits Giant SyncDrive Sport, SyncDrive Pro, SyncDrive Life, and SyncDrive Core V4 drive systems.
- Designed for model years 2017 to 2023 on Yamaha-based mid-drive platforms.
Which displays (display) and control units (control unit) does it support?
- Compatible displays: EVO, EVO-SG, CHARGE, PLUS.
- Compatible remotes: ONE, DASH 2 IN 1-SG, ERGO-SG, ERGO2-SG.
How do I set the speed limit with VOLspeed V4?
- Set a limit from 25 to 45 km/h using the arrow buttons on the control unit.
- The last selected limit is saved after setup.
Does it require soldering or cutting wires?
- The module uses plug-and-play motor connectors for installation.
- No soldering is required, and no cables need to be modified.
What is Dynamic Mode (dynamic mode) on this module?
- Dynamic mode distributes the assistance cut-off across a wider speed range.
- This reduces the “wall effect” compared to an abrupt cut-off.
Can I correct the wheel circumference for accurate speed?
- Wheel circumference can be corrected by ±10%.
- This supports correct speed, trip distance, and average speed readings on the display.
Will the bike’s total mileage stay correct if I remove the module?
- The module corrects kilometers in the motor control.
- Total mileage remains correct even after removing the tuning module.
What tools are typically needed for installation on Giant SyncDrive?
- Common tools: Torx TX20/TX25/TX30 and hex keys 5/6/8 mm.
- For SyncDrive Pro: ISIS crank puller and Giant/Yamaha PW-X lockring tool.
- Optional tools: chain whip and chainring key.
VOLspeed V4 delivers display-controlled tuning (tuning module) for Giant SyncDrive V4 systems while keeping the module hidden on the motor and preserving correct ride data on EVO, EVO-SG, CHARGE, and PLUS displays.
Search terms: VOLspeed V4 tuning module (tuning module), Giant SyncDrive speed limiter (speed limiter), Giant SyncDrive derestriction (derestriction), SyncDrive V4 tuning, EVO display tuning, EVO-SG display tuning, CHARGE display tuning, PLUS display tuning.
