Manufacturer of Seat Rails N SPORT

Manufacturer and wholesaler of seat rails for motor vehicles N SPORT​

Manufacturer and wholesaler of seat rails for motor vehicles N SPORT

N SPORT Seat rail Products

N SPORT S4

Side 4 Position

4position
down10-30mm
recaro
bride
edrib
sparco
cobra
omp
racetech
NANIWAYA

Features

N SPORT S4 Side-mount 4-position Seat Rail
The rear of this side-mount seat rail can be adjusted to four different height settings.

  • Designed for full bucket seats and other side-mount seats.
  • Height adjustments can be made with the side stays and with the 4-step height adjustment at the rear of the seat.
  • The general-purpose side stays accommodate many seat models.
N SPORT S4 Side 4 Position シートレール 特長
N SPORT S4 Side 4 Position シートレール 特長
  • Designed with an adjustable seat angle to accommodate vehicles with certain floor configurations that result in a steeply reclined seat and a seat surface that is too high in the front, thus preventing the driver from fully depressing the pedals.
  • Distortion of sliders due to welding heat is eliminated, resulting in smoother sliding action.
The sliders and mounting frame are secured with rivets and bolts.
The sliders and seat belt buckle stay are secured with rivets.

Detail

N SPORT S4 Side 4 Position シートレール ディテール
N SPORT S4 Side 4 Position シートレール ディテール
N SPORT S4 Side 4 Position シートレール ディテール

Smooth sliding is assured.

Welding heat is the primary cause of slider hardening. The mounting frame and sliders of this model are secured with rivets and bolts to prevent thermal distortion of the metal sliders. Direct welding of sliders is performed only as an auxiliary process to minimize the number of spot welds. For vehicles that require transfer of the original-equipment seat belt buckle to the seat rail, the seat belt buckle stay is fixed with rivets. Smoother slide is achieved by the elimination of distortion due to welding heat.
N SPORT S4 Side 4 Position シートレール ディテール

Height adjustments are provided on the side stays and the 4-step height adjustment at the rear of the seat.

In addition to the height adjustments on the side stays, the seat height can be adjusted in four steps*1 thanks to the independent mounting frame on the rear and the four bolt holes provided on the stays behind the sliders. Because the mounting frame is independent, it can be set to any of four heights or seat angles*2 while reducing the load on the sliders during height adjustment.

*1 Some models (listed in the compatibility table) offer three-step height adjustment.
*2 When the seat is lowered, the tips of the stays behind the sliders may interfere with the floor or mounting frame, limiting the adjustment range. In this case, cut the stays with a grinder or hacksaw.

N SPORT S4 Side 4 Position シートレール ディテール

The general-purpose side stays accommodate many seat models.

The bolt holes used for mounting the seat itself are cut into elongated and diagonal shapes. In addition, the bolt holes for attaching to the sliders are elongated, which allows for mounting of many seat models. Moreover, in addition to offering fine adjustment of seat height and seat angle, this seat rail provides lateral seat adjustment to the left and right. It is also compatible with seats with a high bolt-hole mounting position,* such as the Recaro RS-G. In addition, weight-relief holes are provided for maximum weight reduction.
* For seats with higher mounting positions at the rear, only the bolt holes at the top of the side stays can be used.
N SPORT S4 Side 4 Position シートレール ディテール
シート取り付けボルト付属

Includes seat-mounting bolts.​

All bolts required to mount the seat are included. Your current seat can be mounted only with these bolts.

サイドエアバッグキャンセラー付属

Includes side airbag canceller.

Regardless of whether standard or optional equipment is installed, side airbag cancellers are provided to prevent the triggering of warning lights in models equipped with side airbags.

Specification

  • Seat drop:
    10–30 mm for Standard model
  • Installation method:
    Side mount
  • Height adjustments:
    On side stays plus 4-step adjustment at rear of seat (12 mm/step)
    Side stay adjustments: 12 mm/step
  • Mounted size:
    290 (±5) from front to rear of side stay × 355–450 mm left to right
    260 (±5) from front to rear of side stay × 355–450 mm left to right
    233 (±5) from front to rear of side stay × 355–450 mm left to right
  • Parts supplied:
    Seat-mounting bolts
    Seat belt anchor bolts*1
    Side airbag canceller*2

*1 Supplied with models requiring relocation of the seat belt buckle.
*2 Supplied with models equipped with side airbags.

Tips for mounting the seat to the side stays​

Mount the seat to the side stays as orientated in the illustrations below. The installation width of the seat to be installed determines the orientation.
Adjustments required to center the seat relative to the steering wheel (adjusting the seat to the left or right) are performed by changing the orientation of the side stays as they mount to the seat rails.
Use spacers if the grommets of the belt holes interfere with the side stays, creating a gap between the seat body and the side stays.
(Adjust the number of spacers to fill the gap.)
Even if no interference occurs, a gap may be present depending on the width of the seat to be mounted. In that case, use spacers as well. (Use 30-mm bolts when using spacers; use 20-mm bolts when not using spacers.)

Note: Various spacers and bolts are included with the seat rail.

view of rear of the seat rail
view of rear of the seat rail
view of rear of the seat rail
view of rear of the seat rail

Conform

Compatible Auto Makers and Compatible Seats

RS-G series*1
TS-G series*1
SP-G series
SP-GT series
SP-GN series
SP-A
PRO RACER SP series
All models of full bucket seats*2031
042
067
REV series
EVO series
PRO2000 series
CIRCUIT series
S-LIGHT series
ADV series*3
PRO ADV series
QRT-V series*1
CORSA
IMOLA series
SUZUKA
EVOLUTION
HTE-ONE*1
PROTOTIPO*1
WRC*1
ARS*1
RT1000
RT1000LB
RT4009
RT9009
All models of full bucket seats

*1 Only the bolt holes at the top of the side stays can be used at the rear of the seat.
*2 Not compatible with Zodia model.
*3 Not compatible with ADV XT model.

Accommodates seats with an installation width of 355 to 450 mm apart from those listed above.

View of underside of the seat

“Seat mounting width” explained


We suggest measuring the width of the seat across its bottom as shown in the image. Measure from the surfaces that mount to the side stays.

If the front and rear of the seat vary in width, measure the seat at its widest point.