- 2x5x2.5mm | MR52
- 2x6x2.5mm | MR62
- 3x6x2.5mm | MF63
- 3x6x2.5mm | MR63
- 3x7x3mm | 683
- 3x8x3mm | MR83
- 3x8x4mm | 693
- 3x10x4mm | 623
- 4x8x3mm | MR84
- 4x8mm Flanged MF84
- 4x7x2.5mm | MR74
- 4x8x3mm | MR84
- 4x9x4mm 684
- 4x10x4mm | MR104
- 4x11x4mm | 694
- 4x13x5mm | 624
- 5x8mm Flanged
- 5x8x2.5mm | MR85
- 5x9x3mm | MR95
- 5x9x3mm Flanged | MF95
- 5x10x3mm
- 5x10x4mm flanged | MF104
- 5x10x4mm | MR105
- 5x11x4mm | MR115
- 5x11x5mm
- 5x12x4mm
- 5x13x4mm
- 5x14x5mm | 605
- 5x16x5mm | 625
- 6x10x3mm | MR106
- 6x10x3mm Flanged | MF106
- 6x12x4mm | MR126
- 6x12x4mm Flanged | MF126
- 6x13x5mm | 686
- 6x15x5mm | 696
- 6x16x5mm
- 6x19x6mm | 626
- 7x11x3mm | MR117
- 7x13x4mm | MR137
- 7x14x5mm | 687
- 7x17x5mm | 697
- 7x19x6mm | 607
- 7x22x7mm | 627
- 8x14mm
- 8x14x4mm | MR148
- 8x14x4mm Flanged | MF148
- 8x16x5mm | 688
- 8x16x5mm Flanged | MF688
- 8x19x6mm | 698
- 8x22x7mm | 608
- 9x17x5mm | 689
- 9x20x6mm | 699
- 10x15x4mm flanged | F6700
- 10x15x4mm | 6700
- 10x16x4mm
- 10x16x5mm | MR1016
- 10x19x5mm | 6800
- 10x22x6mm | 6900
- 10x26x8mm | 6000
- 10x28x8mm | 16100
- 12x18x4mm | 6701
- 12x21x5mm | 6801
- 12x24x6mm | 6901
- 12x28x8mm | 6001
- 13x19x4mm
- 13x20x4mm
- 14x25.4x6mm
- 14x25.8x6mm
- 15x21x4mm | 6702
- 15x24x5mm | 6802
- 15x24x5mm Flanged | F6802
- 15x26x7mm | 15267
- 15x28x7mm | 6902
- 15x32x9mm | 6002
- 17x26x5mm | 6803
- 17x28x7mm | 17287
- 17x30x7mm | 6903
- 17x40x12mm | 6203
- 18x30x7mm | 18307
- 20x27x4mm | 6704
- 20x32x7mm | 6804
- 20x42x12mm | 6004
- 20x47x14mm | 6204
- 24x37x7mm
- 25x37x6mm | 6805-6
- 25x37x7mm | 6805-7
- 25x52x15mm | 6205
- 29x42x7mm | 6806/29
- 30x42x7mm | 6806
- 35x47x7mm | 6807
- 40x62x12mm | 6908
- 1/2x1 1/8 x 5/16 | R8
- 1/2x3/4x5/32 | R1212
- 1/4x1/2x3/16 | R188
- 1/4x3/8x1/8 flanged | FR168
- 1/4x3/8x1/8 | R168
- 1/4x5/8x.0196 | R4
- 1/8x1/4x7/64 | R144
- 1/8x3/8x5/32 | R2
- 1/8x5/16x9/64 flanged| FR2-5
- 1/8x5/16x9/64 | R2-5
- 3/8x5/8x5/32 | R1038
- 3/16x1/2x3/16 | R3
- 3/16x3/8x1/8 | R166
- 3/16x3/8x1/8 Flanged | FR166
- 3/16x5/16x.1094
- 3/16x5/16x1/8 Flanged | FR156
- 3/16x5/16x1/8 | R156
- 5/32x5/16x1/8 | R155
- Agama
- ARC
- Associated
- Awesomatix
- AXIAL Racing
- Basher
- Capricorn
- CEN Racing
- Corally
- ECX
- G Made
- GS Racing
- Helion
- Hot Bodies
- HPI
- Hyperdrive
- INFINITY
- Jammin
- Kraken
- Kyosho
- Losi
- MCD Racing
- Mugen
- O'Donnell
- Schumacher
- Serpent
- Shepherd Micro Racing
- SWORKZ
- Tamiya
- TEKNO
- Thunder Tiger
- Top Racing
- Traxxas
- Vaterra
- VBC
- XRAY
- Alfa Romeo
- Audi
- Bentley
- BMW
- Dodge
- FORD
- Ferrari
- Honda
- International Harvester
- Lamborghini
- Lexus
- Maserati
- McLaren
- Mercedes
- Nissan
- Porsche
- Range Rover
- Tesla
- Toyota
- VW
- 1/2"x20
- 7/16-20
- M12x1.25x25
- M12x1.25x27
- M12x1.25x28
- M12x1.5x28
- M12x1.5x35
- M12x1.5x40
- M12x1.5x45
- M12x1.5x50
- M12x1.5 Nuts
- M12x1.5x75 studs
- M12x1.5x90 studs
- M14x1.25x28
- M14x1.25x35
- M14x1.25x43
- M14x1.25x45
- M14x1.5 Nuts
- M14x1.5x28
- M14x1.5x29
- M14x1.5x32
- M14x1.5x33
- M14x1.5x34
- M14x1.5x35
- M14x1.5x37
- M14x1.5x38
- M14x1.5x39
- M14x1.5x42
- M14x1.5x45
- M14x1.5x44
- M14x1.5x49
- M14x1.5x52
- M14x1.5x60
- M14x1.5x62
- M14x1.5x69
- M14x1.5x72
- M14x1.5x80
- M14x1.5x70 Studs
- M14x1.5x80 Studs
- M14x1.5x77
- M15x1.25
- M15x1.25x45
- M3x5
- M3x6
- M3x7
- M3x8
- M3x10
- M3x12
- M3x14
- M3x15
- M3x16
- M3x18
- M3x20
- M3x23
- M3x28
- M3x30
- M3x32
- M3x40
- M4x5
- M4x6
- M4x8
- M4x10
- M4x12
- M4x14
- M4x15
- M4x16
- M4x20
- M4x25
- M4x30
- M4x35
- M4x40
- M5x10
- M5x12
- M5x15
- M5x16
- M5x18
- M5x20
- M5x23
- M6x15
- M6x20
- M6x25
- M6x30
- M6x65
- M8 Nut
- M8x20
- M8x20 Flanged
- M8x24
- M8x25 Flanged
- M8x30 Flanged
- M8x35
- M8x35 Flanged
- M8x40 Flanged
- M8x45 Flanged
- M8x50 Flanged
- M10x25
- M3 Titanium Nut
- M4 Titanium Nut
- M5 Titanium Nut
- 1/2"x20
- 5/16-18
- 3/8-24
- 5/16-24
- 7/16-20
- 10/32-24
- 2x5x2.5mm | MR52
- 2x6x2.5mm | MR62
- 3x6x2.5mm | MF63
- 3x6x2.5mm | MR63
- 3x7x3mm | 683
- 3x8x3mm | MR83
- 3x8x4mm | 693
- 3x10x4mm | 623
- 4x8x3mm | MR84
- 4x8mm Flanged MF84
- 4x7x2.5mm | MR74
- 4x8x3mm | MR84
- 4x9x4mm 684
- 4x10x4mm | MR104
- 4x11x4mm | 694
- 4x13x5mm | 624
- 5x8mm Flanged
- 5x8x2.5mm | MR85
- 5x9x3mm | MR95
- 5x9x3mm Flanged | MF95
- 5x10x3mm
- 5x10x4mm flanged | MF104
- 5x10x4mm | MR105
- 5x11x4mm | MR115
- 5x11x5mm
- 5x12x4mm
- 5x13x4mm
- 5x14x5mm | 605
- 5x16x5mm | 625
- 6x10x3mm | MR106
- 6x10x3mm Flanged | MF106
- 6x12x4mm | MR126
- 6x12x4mm Flanged | MF126
- 6x13x5mm | 686
- 6x15x5mm | 696
- 6x16x5mm
- 6x19x6mm | 626
- 7x11x3mm | MR117
- 7x13x4mm | MR137
- 7x14x5mm | 687
- 7x17x5mm | 697
- 7x19x6mm | 607
- 7x22x7mm | 627
- 8x14mm
- 8x14x4mm | MR148
- 8x14x4mm Flanged | MF148
- 8x16x5mm | 688
- 8x16x5mm Flanged | MF688
- 8x19x6mm | 698
- 8x22x7mm | 608
- 9x17x5mm | 689
- 9x20x6mm | 699
- 10x15x4mm flanged | F6700
- 10x15x4mm | 6700
- 10x16x4mm
- 10x16x5mm | MR1016
- 10x19x5mm | 6800
- 10x22x6mm | 6900
- 10x26x8mm | 6000
- 10x28x8mm | 16100
- 12x18x4mm | 6701
- 12x21x5mm | 6801
- 12x24x6mm | 6901
- 12x28x8mm | 6001
- 13x19x4mm
- 13x20x4mm
- 14x25.4x6mm
- 14x25.8x6mm
- 15x21x4mm | 6702
- 15x24x5mm | 6802
- 15x24x5mm Flanged | F6802
- 15x26x7mm | 15267
- 15x28x7mm | 6902
- 15x32x9mm | 6002
- 17x26x5mm | 6803
- 17x28x7mm | 17287
- 17x30x7mm | 6903
- 17x40x12mm | 6203
- 18x30x7mm | 18307
- 20x27x4mm | 6704
- 20x32x7mm | 6804
- 20x42x12mm | 6004
- 20x47x14mm | 6204
- 24x37x7mm
- 25x37x6mm | 6805-6
- 25x37x7mm | 6805-7
- 25x52x15mm | 6205
- 29x42x7mm | 6806/29
- 30x42x7mm | 6806
- 35x47x7mm | 6807
- 40x62x12mm | 6908
- 1/2x1 1/8 x 5/16 | R8
- 1/2x3/4x5/32 | R1212
- 1/4x1/2x3/16 | R188
- 1/4x3/8x1/8 flanged | FR168
- 1/4x3/8x1/8 | R168
- 1/4x5/8x.0196 | R4
- 1/8x1/4x7/64 | R144
- 1/8x3/8x5/32 | R2
- 1/8x5/16x9/64 flanged| FR2-5
- 1/8x5/16x9/64 | R2-5
- 3/8x5/8x5/32 | R1038
- 3/16x1/2x3/16 | R3
- 3/16x3/8x1/8 | R166
- 3/16x3/8x1/8 Flanged | FR166
- 3/16x5/16x.1094
- 3/16x5/16x1/8 Flanged | FR156
- 3/16x5/16x1/8 | R156
- 5/32x5/16x1/8 | R155
- Agama
- ARC
- Associated
- Awesomatix
- AXIAL Racing
- Basher
- Capricorn
- CEN Racing
- Corally
- ECX
- G Made
- GS Racing
- Helion
- Hot Bodies
- HPI
- Hyperdrive
- INFINITY
- Jammin
- Kraken
- Kyosho
- Losi
- MCD Racing
- Mugen
- O'Donnell
- Schumacher
- Serpent
- Shepherd Micro Racing
- SWORKZ
- Tamiya
- TEKNO
- Thunder Tiger
- Top Racing
- Traxxas
- Vaterra
- VBC
- XRAY
- Alfa Romeo
- Audi
- Bentley
- BMW
- Dodge
- FORD
- Ferrari
- Honda
- International Harvester
- Lamborghini
- Lexus
- Maserati
- McLaren
- Mercedes
- Nissan
- Porsche
- Range Rover
- Tesla
- Toyota
- VW
- 1/2"x20
- 7/16-20
- M12x1.25x25
- M12x1.25x27
- M12x1.25x28
- M12x1.5x28
- M12x1.5x35
- M12x1.5x40
- M12x1.5x45
- M12x1.5x50
- M12x1.5 Nuts
- M12x1.5x75 studs
- M12x1.5x90 studs
- M14x1.25x28
- M14x1.25x35
- M14x1.25x43
- M14x1.25x45
- M14x1.5 Nuts
- M14x1.5x28
- M14x1.5x29
- M14x1.5x32
- M14x1.5x33
- M14x1.5x34
- M14x1.5x35
- M14x1.5x37
- M14x1.5x38
- M14x1.5x39
- M14x1.5x42
- M14x1.5x45
- M14x1.5x44
- M14x1.5x49
- M14x1.5x52
- M14x1.5x60
- M14x1.5x62
- M14x1.5x69
- M14x1.5x72
- M14x1.5x80
- M14x1.5x70 Studs
- M14x1.5x80 Studs
- M14x1.5x77
- M15x1.25
- M15x1.25x45
- M3x5
- M3x6
- M3x7
- M3x8
- M3x10
- M3x12
- M3x14
- M3x15
- M3x16
- M3x18
- M3x20
- M3x23
- M3x28
- M3x30
- M3x32
- M3x40
- M4x5
- M4x6
- M4x8
- M4x10
- M4x12
- M4x14
- M4x15
- M4x16
- M4x20
- M4x25
- M4x30
- M4x35
- M4x40
- M5x10
- M5x12
- M5x15
- M5x16
- M5x18
- M5x20
- M5x23
- M6x15
- M6x20
- M6x25
- M6x30
- M6x65
- M8 Nut
- M8x20
- M8x20 Flanged
- M8x24
- M8x25 Flanged
- M8x30 Flanged
- M8x35
- M8x35 Flanged
- M8x40 Flanged
- M8x45 Flanged
- M8x50 Flanged
- M10x25
- M3 Titanium Nut
- M4 Titanium Nut
- M5 Titanium Nut
- 1/2"x20
- 5/16-18
- 3/8-24
- 5/16-24
- 7/16-20
- 10/32-24
EXTRA 10% off BEARINGS
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1429 products
ASSOCIATED T3/B3/T4/B4/RS PTFE Dual PTFE Sealed Ball Bearing Kit
Regular price $29.99Choose "Shop Pay" at checkout to pay in 4 easy interest free installments!
ASSOCIATED T3/B3/T4/B4/RS PTFE Dual PTFE Sealed Ball Bearing Kit. This kit will work on either the truggy, buggy or race spec (RS) versions and all the factory team versions also.
This kit contains the following ball bearings
Two 5/32x5/16
Twelve 3/16x3/8
Two 3/8x5/8
Ball Bearing Kit for the REVO 3.3
Regular price $49.99 Sale price $37.49 Save $12.50Choose "Shop Pay" at checkout to pay in 4 easy interest free installments!
3/8X5/8 Ball Bearing R1038 1038 Bearing
Regular price $3.99Choose "Shop Pay" at checkout to pay in 4 easy interest free installments!
10X15x4mm Flanged Ball Bearing F6700
Regular price $3.99Choose "Shop Pay" at checkout to pay in 4 easy interest free installments!
1/8X1/4 Ceramic Ball Bearing | R144 Bearing | 1/8x1/4x1/8 Bearing
Regular price $10.99 Sale price $7.99 Save $3.00Choose "Shop Pay" at checkout to pay in 4 easy interest free installments!
4X9x4mm Ceramic Ball Bearing Size 684 Bearing
Regular price $7.99Choose "Shop Pay" at checkout to pay in 4 easy interest free installments!
4x9mm Ceramic ball bearing size 684. Made from our World Champion Ceramic Nitride Pro Series Bearing Material. Lubricated with our lightweight SIN synthetic oil. Sealed on both sides. Price is for 1 bearing.
Porsche Panamera Titanium Lug Bolts
Regular price $359.99 Sale price $239.99 Save $120.00Choose "Shop Pay" at checkout to pay in 4 easy interest free installments!
Manufactured from aerospace grade 6AL4V Titanium these titanium lug bolts will not corrode or rust and offer a significant weight savings on your Porsche while giving a very sporty and aggressive look. Rolled threads for superior fatigue resistance. Available in natural 6AL4V Titanium color. 29mm shaft length which is the original length unless you are using spacers.
If using spacers we stock 4 longer lengths (click for the item page): +5mm, +10mm +15mm and +20mm
M14x1.5x29
BLACK TITANIUM:
We do offer black titanium lug bolts for Porsche. We use a Physical Vapor Deposition (PVD) process which is much better and more durable than simply anodizing titanium. PVD is a complex process which vaporizes a number of metals and then binds them on the surface in layers in a heated vacuum. This is the same process used on the beautiful black finish of high end black luxury watches such as Rolex and Panerai watches. We are always asked if the natural titanium finish will look good against a darker wheel and our answer is yes. Natural titanium pops very nicely against a dark wheel and you will be showing off the beautiful titanium you paid for so it would make sense to go natural but many customers still prefer a black titanium so we offer the best solution with the PVD Black Titanium finish.
Serpent 988 Ceramic Ball Bearings
Regular price $129.99 Sale price $109.99 Save $20.00Choose "Shop Pay" at checkout to pay in 4 easy interest free installments!
TEKNO MT410 Ceramic Bearings
Regular price $95.99 Sale price $79.99 Save $16.00Choose "Shop Pay" at checkout to pay in 4 easy interest free installments!
TEKNO Ceramic Ball Bearing Kit: race faster, longer with our world champion ceramic bearing kit. Uses diamond polished Silicon Nitride ceramic balls, our fully synthetic ACER Racing SIN oil, HSR inner cage technology, proprietary inner tolerances, and no contact seals for the fastest bearings ever.
If you need the MT410 2.0 ball bearings please make that selection.
M4x25 Titanium Screw Button Head 4 pieces
Regular price $12.99 Sale price $11.99 Save $1.00Choose "Shop Pay" at checkout to pay in 4 easy interest free installments!
Titanium Screw 4x25mm ISO 7380 Button Head Hexagon Socket
Thread pitch is .7
Team Losi 8IGHT 4.0 Ceramic Bearing Kit
Regular price $109.99 Sale price $79.99 Save $30.00Choose "Shop Pay" at checkout to pay in 4 easy interest free installments!
Associated RC10 SC5M Ceramic Bearing Kit
Regular price $119.99 Sale price $99.99 Save $20.00Choose "Shop Pay" at checkout to pay in 4 easy interest free installments!
This is a full complete Ceramic Nitride Pro Series bearing kit for the Associated RC10 SC5M
Made from our World Champion Ceramic Nitride Pro Series material. HSR inner cage technology, dual no-contact seals, Grade 5 diamond polished Ceramic Nitride Pro Series balls and 100% synthetic American SIN lightweight oil. This is the ULTIMATE and fastest Associated RC18 B2 bearing kit anywhere...from the world leaders since 1989.
Associated RC8 B3 B3.1 B3.2 T3 T3.1 T3.2 Ceramic Bearing Kit
Regular price $119.99 Sale price $89.99 Save $30.00Choose "Shop Pay" at checkout to pay in 4 easy interest free installments!
This is a full complete Ceramic Nitride Pro Series bearing kit for the Associated RC8 B3 and T3 series made from our World Champion Ceramic Nitride Pro Series material. HSR inner cage technology, dual no-contact seals, Grade 5 diamond polished Ceramic Nitride Pro Series balls and 100% synthetic American SIN lightweight oil. This is the ULTIMATE and fastest Associated RC8 B3 bearing kit anywhere...from the world leaders since 1989.
Team XRAY NT1 2013 Ceramic Bearing Kit
Regular price $129.99 Sale price $89.99 Save $40.00Choose "Shop Pay" at checkout to pay in 4 easy interest free installments!
Team XRAY NT1 2013 Ceramic Ball Bearing Kit for the 2013 version. For previous X Ray NT1 versions please choose item CX010
Tamiya TA06 Pro Ceramic Ball Bearing Kit | TA06 Bearing Kit
Regular price $159.99 Sale price $89.99 Save $70.00Choose "Shop Pay" at checkout to pay in 4 easy interest free installments!
Ceramic Bearing kit for the 6th generation 4WD chassis from Tamiya the TA06 or TA06 Pro, which features a totally new layout design that offers excellent balance. Our TA06 bearing kit will also fit the TA06 Pro. Includes the following ceramic bearings:
4 pcs 10x15mm
10 pcs 5x10mm
4 pcs 4x8mm
4 pcs 5x8mm
2 pcs 3x6mm
3/16x1/2 Ball Bearing Polyamide Sealed
Regular price $3.99Choose "Shop Pay" at checkout to pay in 4 easy interest free installments!
BB30 Adapter
Regular price $49.99 Sale price $34.99 Save $15.00Choose "Shop Pay" at checkout to pay in 4 easy interest free installments!
Our BB30 adapters offer many advantages over external bearing bottom brackets. Compatible with all Shimano and Shimano compatible road cranks. Net weight only 45 grams. Upgrade your 6806 ball bearings with our 6806 ceramic ball bearings for the complete package.
ASSOCIATED RC8Be RC8e Ceramic Bearing Kit
Regular price $149.99 Sale price $89.99 Save $60.00Choose "Shop Pay" at checkout to pay in 4 easy interest free installments!
The RC8Be Factory Team kit picks up where the RC8e left off by adding many performance and durability enhancing features that were pioneered by our Area 51 engineers and world-class team of pro drivers. The new RC8Be features include Factory Team 16mm Big Bore threaded hard-anodized shocks, RC8B 5mm 7075 blue aluminum shock towers, 7075 blue aluminum suspension mounts, Factory Team 7075 blue aluminum one-piece top plate, and Pro-Line M3 Holeshot tires with molded inserts. Pre-assembled shocks, differentials, and turnbuckles help get you on the track fast. Factory Team shock and diff fluids are also included! All of these refinements are what make the Factory Team RC8Be - a potent buggy ready to take your racing to the next level that is pure Associated! Our Ceramic Bearing kit will fit the RC8e, RC8Be and RC8Be Factory Team.
Kyosho Mini Z AWD Ceramic Bearing Kit
Regular price $89.99 Sale price $67.49 Save $22.50Choose "Shop Pay" at checkout to pay in 4 easy interest free installments!
This is a complete 14 piece ceramic bearing kit for the Kyosho Mini Z AWD MA010 Chassis.
Includes 2 of the 2x5x1.5mm mm bearing, 8 of the 3x6 mm bearing and 4 of the 6x10 mm bearing.
For the non AWD Mini Z Ceramic Bearig Kit choose ACER Racing item CK017
HPI VORZA Ceramic Bearing Kit
Regular price $89.99 Sale price $74.99 Save $15.00Choose "Shop Pay" at checkout to pay in 4 easy interest free installments!
6X10MM PTFE Sealed Ball Bearings MR106
Regular price $2.99Choose "Shop Pay" at checkout to pay in 4 easy interest free installments!
1/2X3/4 PTFE Sealed Ball Bearings
Regular price $2.99Choose "Shop Pay" at checkout to pay in 4 easy interest free installments!
3.0mm HCCA ultralite Differential Balls
Regular price $5.99Choose "Shop Pay" at checkout to pay in 4 easy interest free installments!
4X7MM Ball Bearing MR74
Regular price $3.99 Sale price $2.99 Save $1.00Choose "Shop Pay" at checkout to pay in 4 easy interest free installments!
From our ACER Sport collection comes our size 4x7mm bearing
Dual no contact seals, ACERGoo synthetic American lubrication, highly polished HCCA ultralite balls
Price is for 1 MR74 bearing
Ceramic Bearing Kit for the NITRO 4-TEC 3.3
Regular price $89.99 Sale price $79.99 Save $10.00Choose "Shop Pay" at checkout to pay in 4 easy interest free installments!
JATO 3.3 Ceramic Bearing Kit
Regular price $109.99 Sale price $67.49 Save $42.50Choose "Shop Pay" at checkout to pay in 4 easy interest free installments!
MUGEN MBX5/WORKS Ceramic Bearing Kit
Regular price $89.99 Sale price $67.49 Save $22.50Choose "Shop Pay" at checkout to pay in 4 easy interest free installments!
Porsche 356 Titanium Lug Studs and Nuts
Regular price $139.99Choose "Shop Pay" at checkout to pay in 4 easy interest free installments!
The world's first aerospace grade 6AL4V Titanium wheel studs for the legendary Porsche 356 from the pioneer in titanium wheel hardware technology: ACER Racing. These titanium studs have been designed with a beautiful round bull nose and will not corrode or rust and offer a significant weight savings on your Porsche while giving a very sporty and aggressive look. Rolled threads for superior fatigue resistance.
Available in natural 6AL4V Titanium color or BLACK PVD in 3 shaft lengths (measured from the base of the shaft to the end of the threads-does not include the 3.5mm thickness of the round base or the 6.5mm length of the round head-please note the start and end points of the measurements as noted with the black line next to the length of the studs in the first photo):
36mm (standard length for drum brake cars-44.5mm overall length)
40mm (48.5mm overall length)
55mm (65mm overall length)
If you need titanium ball seat nuts they are sold separately please click HERE