| 18400 Bypass1 Pistons, 6-Hole Set, 16mm, Mugen, Sparko 1/8th | piston | | 16 | | |
| 18410 Bypass1 Pistons, 8-Hole Set, 16mm, Mugen, Sparko 1/8th | piston | | 16 | | |
| 19020 Bypass1 Pistons, 8-Hole Set, 16mm, Team Associated 1/8th | piston | | 16 | | |
| 19030 Bypass1 Pistons, 6-Hole Set, 16mm, TLR 1/8th | piston | | 16 | | |
| 19050 Bypass1 Pistons, 8-Hole Set, 16mm, Kyosho MP9 / MP10 1/8th | piston | | 16 | | |
| 18401 Bypass1 Pistons, 6-Hole x 1.3mm, 16mm (2) | piston | | | | |
| 18411 Bypass1 Pistons, 8-Hole x 1.2mm, 16mm (2) | piston | | | | |
| 19005 Bypass1 Tuning Valves Kit, 1/8th Scale | piston | | | | |
| 19011 Bypass1 Pistons, 5-Hole x 1.3mm, 16mm (2) | piston | | | | |
| 19021 Bypass1 Pistons, 6+6 Hole x 1.3mm, 16mm (2) | piston | | | | |
| 23400 Bypass1 Hi-Flow Pistons, 6-Hole x 1.3mm, 1/8th Scale | piston | | | | |
| 23401 Bypass1 Hi-Flow Pistons, 5-Hole x 1.3mm, 1/8th Scale (2) | piston | | | | |
| 23402 Bypass1 Hi-Flow Pistons, 6-Hole x 1.3mm, 1/8th Scale (2) | piston | | | | |
| 23403 Bypass1 Hi-Flow Pistons, 8-Hole x 1.2mm, 1/8th Scale (2) | piston | | | | |
| 23404 Bypass1 Hi-Flow Pistons, 10-Hole x Blank, 1/8th Scale (2) | piston | | | | |
| 23405 Bypass1 Hi-Flow Piston Kit, 5-Hole x 1.3mm, 1/8th Scale | piston | | | | |
| 23410 Bypass1 Hi-Flow Pistons, 8-Hole x 1.2mm, 1/8th Scale | piston | | | | |
| 24400 Bypass1 Tapered Hi-Flow Piston Kit, 6-Hole x 1.3mm, 1/8th Scale | piston | | | | |
| 24401 Bypass1 Tapered Hi-Flow Pistons, 5-Hole x 1.3mm, 1/8th Scale (2) | piston | | | | |
| 24402 Bypass1 Tapered Hi-Flow Pistons, 6-Hole x 1.3mm, 1/8th Scale (2) | piston | | | | |
| 24403 Bypass1 Tapered Hi-Flow Pistons, 8-Hole x 1.2mm, 1/8th Scale (2) | piston | | | | |
| 24404 Bypass1 Tapered Hi-Flow Pistons, 10-Hole x Blank, 1/8th Scale (2) | piston | | | | |
| 24405 Bypass1 Tapered Hi-Flow Piston Kit, 5-Hole x 1.3mm, 1/8th Scale | piston | | | | |
| 24406 Bypass1 Tapered Hi-Flow Pistons, 24-Hole x Blank, 1/8th Scale (2) | piston | | | | |
| 24410 Bypass1 Tapered Hi-Flow Piston Kit, 8-Hole x 1.2mm, 1/8th Scale | piston | | | | |
| 18402 Bypass1 Stop Washers, Mugen / AE / Kyosho / Tekno 1/8th (4) | | | | | |
| 19032 Bypass1 Stop Washers, TLR, HB Racing 1/8th (4) | | | | | |