Option Parts Set Gunpla 20 Ride On Set: What It Fits and How to Use It
By GUNNZO | Published: 2026-11-03
Category: How-to Guides
Learn what the Option Parts Set Gunpla 20 Ride On Set fits, how its Mega Ride Launcher and Machine Rider transform, and a step-by-step process for mounting it on HG kits without mistakes.
Quick answer
The Option Parts Set Gunpla 20 Ride On Set is a 1/144-scale accessory pack designed to attach to HG-series kits using included joint parts. Mount the Machine Rider or Mega Ride Launcher first, then transform and pose the figure around it rather than forcing the accessory onto a finished pose.
What the set actually contains and why the two modes matter
This set bundles two connected pieces: the Mega Ride Launcher, which converts between Mega Rider and Mega Launcher forms, and the Machine Rider, which converts between a ride position and a stand position. That dual-mode design is the reason the set works as both a display base and a mounted vehicle, but it also means you need to decide the final mode before you attach anything to a model.
The Mega Ride Launcher can reproduce the MS towing state in Mega Rider form. If you plan to show a mobile suit being towed or carried, set that mode first; switching later usually means detaching joints and re-posing the figure, which risks scratching paint or loosening peg fit.
Compatibility is broad but not universal
Bandai lists joint parts for attaching the set to each HG series kit, so most HG 1/144 models are within scope. The set does not supply a kit-specific adapter list, and no option types are supplied in the catalog data, so exact fit on unusual proportions, third-party kits, or Real Grade and Master Grade models is not confirmed. Treat those as experiments, not guarantees.
If you are customizing a kit with heavy option parts already, check clearance around the back and legs before committing. A bulky backpack or side skirt can block the ride position even when the joint peg fits.
Where this set is worth it, and where it is not
The set is a good fit if you want a compact display piece that changes the silhouette of an HG kit without committing to a full diorama. It is less useful if you expect a stand-alone vehicle with its own power or lighting features, because the supplied facts describe transformation and joint attachment only.
At the catalog price of USD 14.95 against a comparison price of USD 23.00, it is a low-risk way to test whether ride-on accessories suit your collection. Buy it for the transformation gimmick and towing display, not as a universal adapter kit for every grade.
How to mount and pose the Ride On Set step by step
- Choose the final mode before attaching: Decide whether you want the Mega Ride Launcher in Mega Rider form for towing or Mega Launcher form, and whether the Machine Rider will be in ride or stand position. Transform the accessory first, while it is off the model. Common mistake: attaching the set to a posed kit and then transforming it, which can pop joints or scratch paint.
- Test-fit the joint parts on the kit: Dry-fit the supplied joint parts to the HG kit's back or appropriate hardpoint before adding the accessory. Do not force a peg; if it resists, check orientation and try a different joint part. Checkpoint: the joint should seat with light pressure and stay without support.
- Attach the accessory, then the model: Mount the Machine Rider or Mega Ride Launcher to the joint on the kit, supporting the accessory with one hand while you press the joint home. For the towing state, connect the mobile suit to the Mega Rider form only after the launcher is secure. Common mistake: holding the mobile suit by an arm or weapon while pushing the accessory on, which can snap thin parts.
- Pose the figure around the accessory: Adjust legs, arms, and backpack clearance so the figure sits naturally in the ride position or towing state. Keep the center of gravity over the stand or base, and avoid leaning the kit against the accessory for support. Checkpoint: the kit should balance without the accessory propping it up.
- Re-check joints after any mode change: If you switch between Mega Rider and Mega Launcher forms or between ride and stand positions, remove the accessory from the kit first, transform it, then reattach. Inspect joint parts for stress marks each time. Retire and replace any joint part that shows whitening or a loose fit rather than gluing it in place.
Product facts
- Option Parts Set Gunpla 20 Ride on set: The set includes the Mega Ride Launcher and Machine Rider, with the launcher transforming between Mega Rider and Mega Launcher forms. You can display a towing scene or a launched-weapon scene from one purchase, but you must choose the mode before final posing.
Option Parts Set Gunpla 20 Ride on set - Option Parts Set Gunpla 20 Ride on set: Joint parts are included and the set can be attached to each HG series kit. Most HG 1/144 builds can use the set out of the box, though exact fit on non-HG grades is not confirmed.
- Option Parts Set Gunpla 20 Ride on set: The Machine Rider transforms into a ride position and a stand position. It can support a mounted figure or serve as a display stand, so plan which role it plays before assembly.
