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y0733 Big Scale-EXTREME, adjustable 3 - shoe clutch

Product information "y0733 Big Scale-EXTREME, adjustable 3 - shoe clutch"

With the Big Scale-EXTREME an adjustable clutch for very special requirements has been designed:
  • For large-displacement engines
  • For heavy or high traction cars (Losi, HPI)
  • For modified performance engines
  • For the demanding off-road use


Rapid wear of a clutch is a sign of constant slipping, even beyond engagement speed. In this case, the clutch does not transfer the applied torque.

This is where the Big ScaleEXTREME sets a new standard.
The new design of the "Extreme" prevents the centrifugal forces of clutch springs or lever side of the clutch shoes from counteracting the centrifugal force of the friction pad side even after engagement.
As a result this clutch can transfer lots of power with minimal wear.

The new design ensures that the centrifugal forces are transferred in full to the clutch lining. Precise engagement and disengagement even under high loads and inside of closed clutch bell carriers means no problem for this clutch.

The clutch can be easily adjusted to the engagement speed through three set screws without clutch bell removal, so you can match the characteristics of your engine.

The special clutch lining of the Big Scale-EXTREME is particularly wear-resistant and - especially in combination with a high-quality nitrited clutch bell (), guarantees for an exceptionally long service life! Contrary to the "Cross" or "Race" version there's no need to uninstall the clutch from the engine for maintenance. All parts are easily accessible from the front after removing the front plate.

Please see the specifications tab for further information and handling advices!

The regular price of the Big Scale-EXTREME is EUR 139.90

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Accessories / Spare parts

y0743 Clutch-Safe 10 g, adhesive especially for clutch pads
y0743 Clutch-Safe 10 g, adhesive especially for clutch pads

Special single component epoxy adhesive for bonding clutch shoes; suitable for extreme operating temperatures (up to 200°C!) Important note for processing: For the final cure of the bond Clutch-Safe must be tempered at 170°C for 1 hour! (1 hour at 170°C in the oven!) The extremely high temperature load on the clutch shoes when used in off-road cars caused by increased clutch slippage, the shock of jumps and the combination with sometimes very high vehicle weights (up to 18 kg!) make bonding with Clutch-Safe highly recommended. For later removal/replacement of worn out clutch pads the clutch shoes must be heated as well.Attention:Clutch-Safe adhesive must be stored in the fridge! Content: 10g tube

Content: 10 Gramm (€495.00 / 1000 Gramm)

Regular price: €4.95
y0733/02 Extremely wear resistant organic friction pad
y0733/02 Extremely wear resistant organic friction pad

Extremely wear resistant organic friction pad, spare part for BigScale Extreme clutch.Since the connection between lining and shoe is highly loaded, the careful bonding with curing in an oven is of particular importance. Please use exclusively the special Clutch-Safe glue #y0743.You can find ready-to use cluth shoes with correctly bonded friction pads under at # y0733/01.

Regular price: €29.90
y0733/03 Mounting screws for friction pads and front plate
y0733/03 Mounting screws for friction pads and front plate

Mounting screws for friction pads and front plate, spare part for BigScale Extreme clutch.Dimensions:M3 x 7 mm (f0r 2 mm allen wrench)

Regular price: €3.90
y0733/04 Pressure plate, 0.8 mm flange
y0733/04 Pressure plate, 0.8 mm flange

Pressure plate, 0.8 mm flange thickness, spare part for BigScale Extreme clutch.

Regular price: €9.90
y0733/05 Pressure plate, 1.5 mm flange thickness
y0733/05 Pressure plate, 1.5 mm flange thickness

Pressure plate, 1.5 mm flange thickness, spare part for BigScale Extreme clutch.

Regular price: €9.90
y0733/061 Clutch spring green, 1.4 mm, 3 pcs.
y0733/061 Clutch spring green, 1.4 mm, 3 pcs.

Clutch spring green, 1.4 mm, optional part for BigScale Extreme clutch.

Regular price: €9.90
y0733/062 Clutch spring black, 1.5 mm, 3 pcs.
y0733/062 Clutch spring black, 1.5 mm, 3 pcs.

Clutch spring black, 1.5 mm, spare part for BigScale Extreme clutch, stock spring.

Regular price: €9.90
y0733/063 Clutch spring white, 1.6 mm, 3 pcs.
y0733/063 Clutch spring white, 1.6 mm, 3 pcs.

Clutch spring white, 1.6 mm, optional part for BigScale Extreme clutch.

Regular price: €9.90
y0733/064 Clutch spring orange, 1.7 mm, 3 pcs.
y0733/064 Clutch spring orange, 1.7 mm, 3 pcs.

Clutch spring orange, 1.7 mm, optional part for BigScale Extreme clutch.

Regular price: €9.90
y0733/065 Clutch spring candy red, 1.8 mm, 3 pcs.
y0733/065 Clutch spring candy red, 1.8 mm, 3 pcs.

Clutch spring candy red, 1.8 mm, optional part for BigScale Extreme clutch.

Regular price: €9.90
y0733/07 Adjustment screw M5x7.6 mm, 3 pcs.
y0733/07 Adjustment screw M5x7.6 mm, 3 pcs.

Adjustment screw M5x7.6 mm, spare part for BigScale Extreme clutch (2.5 mm allen wrench size).

Regular price: €9.90
y0733/08 Clutch body
y0733/08 Clutch body

Clutch body, spare part for BigScale Extreme clutch.

Regular price: €29.90
y0733/09 Front plate
y0733/09 Front plate

Front plate, spare part for BigScale Extreme clutch.

Regular price: €19.90
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y0723 Gas-nitrited tuning clutch bell for FG, Smartech/Carson, Harm, RS5 & Co.
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Genuine HT spare/option part. Gas-nitrited tuning clutch bell; machined from high grade steel with vents for cooling of the clutch system and holes for easy clutch adjustment. The clutch bell features a significantly reinforced wearing surface which guarantees dimensional stability even under high loads!For best mounting of the pinion the clutch bell shaft has to flats with a 90° offset. As an additional safety device a M5 bolt with washer (included) replaces the E-clip found on stock clutch bells.Suitable for many 1/5 and 1/6 cars, such as all FG (except Formula 1), Carson a.s.o.Contents:1 piece

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10403 FG Tuned pipe F1 - set
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With the Futaba R404SBS, Futaba offers the fastest and most compact receiver for RC cars and boats on the market today! The R404SBS has the ultra-fast signal transmission F-4G (10 channels with telemetry at maximum transmission speed). This makes the model's response even more direct while maintaining maximum transmission reliability!The new F-4G (Futaba 4th Generation System) transmission mode supports the familiar SR mode and has an even higher transmission speed than the previous T-FHSS SR. At the same time, the size of the new F-4G receivers R404SBS / R404SBS-E could be reduced again. To make this possible, the R404SBS-E has a large, upward-pointing antenna to optimize signal reception. Due to the chosen design, the footprint of the receiver remains unchanged.To take full advantage of the speed of Futaba's F-4G SR technology, there are numerous FUTABA SV servos that can also be converted to SR mode. The following servos are currently SR compatible: BLS371SV, BLS471SV, BLS571SV, BLS671SV, BLS671SVi, BLS373SV, S9372SV, S9373SV, HPS CB700, HPS CT700, HPS CB500, HPS CT500.The R404SBS has antenna diversity. The receiver constantly compares which antenna has the better signal and switches to it in a flash. The R404SBS has the second antenna in the housing.S.BUS2 sensors can be connected to the S.BUS2 port. They transmit up to 32 telemetry data sets. The receiver has an integrated telemetry transmitter that transmits the data to the transmitter. This allows the measured values to be displayed or acoustically output at the transmitter.ATTENTION: The receiver supports HV (High Voltage) and can be powered directly from a 2s LiPo battery. Always make sure that the connected servos are also designed for HV! Technical specifications Transmission type: F-4G Frequency range: 2.4 GHz Channels: 4 PWM / 10 S.BUS Transmission power: 100 mW EIRP S.BUS Port: S.BUS2 Voltage range: 3.7-8.4V Dimensions: 25.5 x 20 x 10.6mm Weight: 5.7g Features 4/10 channel F-4G receiver 10 channels of telemetry at maximum transmission speed SR mode compatible Telemetry with S.BUS2 Telemetry with 32 channels S.BUS2 port Hi-Voltage (HV) Antenna diversity

Regular price: €95.00
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y0733/02 Extremely wear resistant organic friction pad
y0733/02 Extremely wear resistant organic friction pad

Extremely wear resistant organic friction pad, spare part for BigScale Extreme clutch.Since the connection between lining and shoe is highly loaded, the careful bonding with curing in an oven is of particular importance. Please use exclusively the special Clutch-Safe glue #y0743.You can find ready-to use cluth shoes with correctly bonded friction pads under at # y0733/01.

Regular price: €29.90
2 block tuning clutch y0051 adjustable for Zenoah, 1 piece
2 block tuning clutch y0051 adjustable for Zenoah, 1 piece

New adjustable 2-jaw clutch.  - High-quality workmanship  - Pads are individually replaceable  - Individually adjustable to the conditions.  For FG, Carson, Losi models and HPI Baja 5B, except FG F1 and EVO2020.  1 piece

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4419 FG adjustable 3-shoe clutch for Evo 2020
4419 FG adjustable 3-shoe clutch for Evo 2020

Genuine FG spare/option part.Content:1 piece

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y0733/061 Clutch spring green, 1.4 mm, 3 pcs.
y0733/061 Clutch spring green, 1.4 mm, 3 pcs.

Clutch spring green, 1.4 mm, optional part for BigScale Extreme clutch.

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y0723 Gas-nitrited tuning clutch bell for FG, Smartech/Carson, Harm, RS5 & Co.
y0723 Gas-nitrited tuning clutch bell for FG, Smartech/Carson, Harm, RS5 & Co.

Genuine HT spare/option part. Gas-nitrited tuning clutch bell; machined from high grade steel with vents for cooling of the clutch system and holes for easy clutch adjustment. The clutch bell features a significantly reinforced wearing surface which guarantees dimensional stability even under high loads!For best mounting of the pinion the clutch bell shaft has to flats with a 90° offset. As an additional safety device a M5 bolt with washer (included) replaces the E-clip found on stock clutch bells.Suitable for many 1/5 and 1/6 cars, such as all FG (except Formula 1), Carson a.s.o.Contents:1 piece

Regular price: €49.90
y0733/08 Clutch body
y0733/08 Clutch body

Clutch body, spare part for BigScale Extreme clutch.

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Gas-nitrited tuning clutch bell for all cars to choose
Gas-nitrited tuning clutch bell for all cars to choose
For Model: y0723 - for FG, Smartech, Carson, Harm, RS5 und Co

Different versions to choose:y0723 Gas-nitrited tuning clutch bell for FG, Smartech / Carson, Harm, RS5 & Co..Gas-nitrited tuning clutch bell; machined from high grade steel with vents for cooling of the clutch system and holes for easy clutch adjustment. The clutch bell features a significantly reinforced wearing surface which guarantees dimensional stability even under high loads!For best mounting of the pinion the clutch bell shaft has to flats with a 90° offset. As an additional safety device a M5 bolt with washer (included) replaces the E-clip found on stock clutch bells.Suitable for many 1/5 and 1/6 cars, such as all FG (except Formula 1), Carson a.s.o.y0726 Gas-nitrited tuning clutch bell for Losi 5ive-T (unfortunately not available at the moment Alternatively original Losi clutch bell # LOSB5038) )  Gas-nitrited tuning clutch bell machined from high grade steel with a hole for easy clutch adjustment. Special vents remove dirt and clutch lining debris automatically, preventing it from accumulating in the clutch bell and causing premature wear to clutch bell and linings. They aid in cooling of the clutch bell as well.The clutch bell features a significantly reinforced wearing surface and face which guarantees dimensional stability even under high loads! The shaft is a tiny bit longer than stock (about 0.2 mm) to prevent the bearings from binding.Since this clutch bell is single-piece machined from bar stock there is no weld bead on the inside of the face plate. The gained space allows now to use the adjustable GPM Big Scale-Cross clutch.Suitable for genuine slot drive Losi pinions. Comes with bolts and spring washers included.y0726/01 Gas-nitrited tuning clutch bell for Losi DBXLGas-nitrited tuning clutch bell with black oxide coating, machined from high grade. Special vents remove dirt and clutch lining debris automatically, preventing it from accumulating in the clutch bell and causing premature wear to clutch bell and linings. They aid in cooling of the clutch bell as well. This clutch bell is dimensionally identical to the stock part. Heat treatment and the use of a high grade material guarantee long service life.Due to a special heat treatment the clutch bell surface is shaded; this does not effect the function, but ensures great durability.y0729 Gas-nitrited tuning clutch bell for HPI Baja models, 1 pce.Gas-nitrited tuning clutch bell machined from high grade steel with a hole for easy clutch adjustment. Special vents remove dirt and clutch lining debris automatically, preventing it from accumulating in the clutch bell and causing premature wear to clutch bell and linings. They aid in cooling of the clutch bell as well.The clutch bell features a significantly reinforced wearing surface whichguarantees dimensional stability even under high loads!Since this clutch bell is single-piece machined from bar stock there is no weld bead on the inside of the face plate. The gained space allows now to use the adjustable GPM Big Scale-Cross clutch.Suitable for slot drive HPI Baja pinions, both stock using a 4mm bolt and aftermarket ones for 5mm bolts. Comes with M4 and M5 bolts included.

Regular price: €49.90
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