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Trickbits Manufacturers of specialist parts for vintage radio control cars.

RC Trickbits has good news to share on the driver front. Ewan Tumilty will be racing the YZ10-25R for RC Trickbits. As m...
31/10/2026

RC Trickbits has good news to share on the driver front. Ewan Tumilty will be racing the YZ10-25R for RC Trickbits.

As many in the UK know, Ewan drives for the official UK Team Yokomo 1/10 off-road team. At 20, Ewan is the youngest driver to race one of our supported cars. He holds an F1 licence; we look forward to his new ideas and lightning-fast reactions.

As a contracted driver with Team Yokomo, Trickbits is indebted to Michael Ball of MB Models, Tomoyuki Kinosh*ta of Yokomo, and Chris Foster, team manager, for allowing vintage racing into his race calendar. Clearly, his Yokomo commitments take precedence over vintage events. Working with a Yokomo driver removes a significant obstacle for us: driver availability due to contract exclusions with other manufacturers.

The R25 arrived today and includes our latest updates. As luck would have it, his colour scheme is predominantly blue, matching the anodising nicely.

Initial testing will take place very soon. Updates will follow…

NEW PRODUCT ANNOUNCEMENT I did one of my favourite tasks last week: visiting our anodising company to pick up a batch of...
17/10/2026

NEW PRODUCT ANNOUNCEMENT

I did one of my favourite tasks last week: visiting our anodising company to pick up a batch of NEW RC Trickbits upgrades for our YZ10R race car. As always, perfect anodising.

On 9 August, we launched new alloy castor blocks, rear uprights/hubs, and 3° rear pivots. Today I'm pleased to launch three more complex aluminium components for the YZ10R series. We produced each item on a five-axis milling machine.

1. Front lower bulkhead. We produce the bulkheads from a single billet. This is a complex item and entails a long cycle time. Brass grub screws secure the hinge pin in place. We have produced only 25 of these. Most are in Black, followed by Blue, with only two in Red. £49.00

2. Rear lower bulkhead. Again, produced from a single billet. Colours and quantities match the front lower bulkhead. £41.00

3. Upper front arms. This may sound a little over the top, but they are exquisite in aluminium. Yet another job for the five-axis mill. Colours and quantities are the same as the front lower bulkhead. £38.50

For this initial batch, we are selling only the bulkheads as a front-and-rear pair. We will supply the front upper arms on a first-come basis.

Any questions? Please message me.

We are proud to present the Craig Drescher RC Trickbits ‘Silver Dollar’ YZ-W91R Las Vegas winning car, track dust includ...
13/10/2026

We are proud to present the Craig Drescher RC Trickbits ‘Silver Dollar’ YZ-W91R Las Vegas winning car, track dust included. This is an absolutely cracking car, and the shell is just about perfect for this car.

Not many detailed pictures of the Silver Dollar car exist, and for good reason. This is only the second Silver Dollar car to be built. I created the first for Jose Zayas. Jose runs our cars in the US.

The Drescher car is a little different, as we had two days of solid testing under our belts before thr build commenced, and this led to minor differences.

The Trickbits YZ-W91R was designed to be significantly different from our competitors' offerings. Trickbits took its time to define the car's direction, drawing inspiration from two masters.

1. The 1989 870c WCS build for Masami.

2. And the Christian Keil version of the original Yokomo Works 91. His period-correct modification reconfigured the car's weight distribution for European track conditions. It was based on mass centralisation, long before "mass centralisation" became an industry buzzword; his upgrade brought heavy electronics closer to the centre line of the car to sharpen steering response and improve the buggy's agility over jumps and bumps. As an example, the LiPo and ESC have less than 2mm clearance with the front belt of the YZ-W91R.

Back in the day, Craig and many of the UK Yokomo team raced using this chassis, and as a minor footnote, my son also raced a Works 91 car built on a Keil chassis.

I am pleased that Trickbits can offer something very different, yet everything is in the right place👍

Wow. I haven't written a report since August! Much has happened since then. Apologies, this is a long one….Where better ...
10/10/2026

Wow. I haven't written a report since August! Much has happened since then. Apologies, this is a long one….

Where better to start than with Craig Drescher RC choosing to race the Trickbits YZ-W91R in Las Vegas! I don't mind admitting, this was a big deal for RC Trickbits.

From the outset, it wasn't a foregone conclusion that he would take the YZ-W91R to Las Vegas; the car had to prove it was worth his commitment. We also agreed this would not become common knowledge; only four people knew he was testing the car🙊
We arranged for him to test the 91R on June 24th at the Coventry Model Car Clubs track near Rugby. As Craig walked towards the rostrum, he mentioned that this would be the first time he had picked up his radio in eight months! My response was: "Please try and keep it on its wheels." The forecast was 35°C, and running around a large track marshalling the car wasn't my idea of fun.
The testing started at 10 am and finished at 5:30 pm. By the end of the second pack, Craig was absolutely flying. We ran the car on the re-re diffs with steel internals, and focused on adapting it to his driving style, suspension, ride height, roll bars, tyres, etc.

I know this sounds like a really dumb thing to write, but my goodness, he impressed me, and I am not talking about his driving; these skills have been apparent to all for many years. It was his approach to setting up the car; the little things, minute changes most wouldn't bother trying. And, above all, his work ethic: he worked hard all day.
Although he lapped quicker than the modern cars on that layout, it wasn't enough to convince him to choose our 91R. This is a new track and relatively smooth. He wanted a tougher challenge for the car.
For the next test, we agreed that Bingham would fit the bill. The track is best described as a challenging old-school astro track, with lots of bumps, jumps, and undulations to negotiate. Proper off-road.

This test took place on the 16th of July, with another cripplingly hot weather forecast. We tested from 9:00 am to 5:30 pm. Starting once again with kit gear-diff casings and steel internals. We changed the shock oil, seals and springs to suit the track. After a tentative first couple of laps, Craig was on the money. I believe we ran five packs before lunch.

After lunch, we switched to the Trickbits large-diameter ball diffs and made several small adjustments to fine-tune the car as the temperature had increased. The Trickbits ball diffs definitely shaved lap times. By mid-afternoon, Craig decided to retest the gear diffs back-to-back. We changed the diff oil to account for the heat, ran a couple of packs; stripped the diffs once again, filling them with the heaviest oil we had between us, and ran two more packs. We ran 10, maybe 11 packs that day, and made more setup changes than you can shake a stick at. As I mentioned previously, Craig’s work ethic is mightily impressive.

It wasn't until we started packing up to leave that he finally confirmed he would like to run the Trickbits YZ10-91R car in Vegas. This man has a seriously good poker face, and I was left guessing right to the very end. And he still wished to keep this quiet until he rocked up in Vegas🙊

I believe Craig's decision resulted from the hard work and commitment made by Trickbits. Also, our chassis layout is as close to the original 91 as was practically possible. The steering and ESC are located in the original Yokomo position. The Trickbits bulkheads at 12° castor and 2.5° anti-squat are derived from the 870/W91-93 RPM bulkheads and deliver a driving balance other kits would struggle to match. We took nothing for granted, and we had to perform at both tests.

You will all know the fantastic result Craig achieved with the YZ-W91R. He plans to post his own race report soon. He is still waiting for the trophy to arrive from the US with a CML’s AE shipment!!

Even when our supported cars win, I like analyse every aspect of the car's performance. Below is the simplified headlines of the 89-93 class.

This was the largest 4WD class at the event, with 70 entries.

Craig’s winning time in the A2 final was a mere 0.871 slower than 4 x World Champion Ryan Cavallari driving a CAT 2000 in the 1994-2000 class. His winning time could have placed him second in the 1994 – 2000 class.

Across A1 & A2 only Craig and Jermain Robinson posted 25 laps in the finals.

In qualifying, Craig set the fastest time in rounds 1 and 3 to TQ the event. He was the only driver to post 19-lap runs in those heats.

P.S. Apparently, the YZ-W91R attracted the attention of two legends in our sport. I will leave that up to him to tell that story….

The winning Trickbits YZ-W91R 'Silver Dollar'. Such an impressive win.More details to follow.....
08/09/2026

The winning Trickbits YZ-W91R 'Silver Dollar'. Such an impressive win.

More details to follow.....

Craig Drescher wins the 2026 Team Associated Vintage Championship in Las Vegas driving the Trickbits YZ-W91R.
07/09/2026

Craig Drescher wins the 2026 Team Associated Vintage Championship in Las Vegas driving the Trickbits YZ-W91R.

19/08/2026

Jose Zayas posted this yesterday. He was running the YZ10R-25 at 'The Track in Gaithersburg, Maryland'.

Running on slicks, the R25 was on rails. The cars pace supprised the drivers of modern 4WD.

https://www.facebook.com/share/r/14jT1x8YVM7/

Trickbits' latest batch of re-re outdrives arrived from heat treating today. The Trickbits outdrives are manufactured in...
15/08/2026

Trickbits' latest batch of re-re outdrives arrived from heat treating today.

The Trickbits outdrives are manufactured in the UK from the highest-quality high-carbon steel. Without divulging the exact specification of the steel we use, this material is used by the motor industry to produce crankshafts, camshafts, gearbox internals, etc. So, the very best.

Heat treating is equally important in producing the final product? We have used gas Nitriding to apply a predetermined depth of case hardening. Each outdrive is hand polished to remove the hardening residue.

Our re-re diffs use the same number of teeth as the original 870c and Works 91 pulleys at 35 teeth. This larger pulley is important because it allows us to use the Associated 6576 ground diff plates, which are used in many of their current cars. Trickbits also produces the pulleys to except 5mm wide belts💥

In summary: the Trickbits re-re diff offers access to the highest-quality internals, 5mm drive belts front and rear, and the same drive ratio as the original Yokomo's.

Please get in contact if you require any additional information 🇬🇧

RC Trickbits has a number of exciting products for the R25 and the 91R.We have been running these castor blocks and rear...
09/08/2026

RC Trickbits has a number of exciting products for the R25 and the 91R.

We have been running these castor blocks and rear hubs for around two years in 3D-printed format, and they are race-proven with many wins.

Now we have produced them in 7075 aluminium. Our YZ-W91R car has largely driven this development. The castor block support on this car is non-existent. We have largely resolved the issues by producing extremely rigid Delrin arms.

7075 Aluminium contains a significant amount of zinc, resulting in exceptional fatigue resistance and high levels of hardness. The downside of using 7075 is normally a dreadful anodising finish. Hats off to our anodising company. They pulled an absolute blinder on the quality of the anodising they've managed to achieve with this material. I am convinced that English anodising companies are right up there with the very best in the world.

We are releasing castor blocks with 0° and 5°. Two mounting points: top-loading and the original mounting position with a ball stud. Therefore, offering flexibility. Trickbits 91 bulkheads are produced with 12° of castor; this provides up to 17° for the 91 car, and 15° on the 95R car. In our experience, this is sufficient for current tyres and tracks. The castor blocks have a brass bushing to allow them to pivot freely. Brass was chosen as the most suitable material to work in conjunction with aluminium. Brass is a naturally self-lubricating material, and this is essential to prevent the castor blocks from incurring excessive wear. The bushings may also be rotated, providing +/- 2.5 mm of hub height adjustment when using Kyosho steering knuckles.

Also released are rear hubs/upright. This is very much a copy of the Yokomo hub in use by us and others. However, we have replicated the ‘enneagon’ shape of the original item. This again has been produced using 7075. This material was not essential. However, if there were any differences in the anodising colour, we wished both parts to be identical. The rear hubs are available in 0° and +1°. The +1 hub is widely used by our drivers to reduce toe from 3° to 2°. This has been one of our go-to setups for high-grip tracks. You also have the option of installing them as +1 ° to increase the toe to 4° on wet or slippery tracks.

These Trickbits components will fit all vintage Yokomos 870 to 97 cars.

🤔It’s the Trickbits attention to detail that sets us apart!🤔

We have also produced the 94/95/97 rear pivot for the later car in a 3° anti-squat. This has a grub screw in the centre of the pivot block to prevent the hinge pin from rotating in the block (i.e., to prevent wear).

We have other exciting items on order for the later car. The first of which should be with us by the first week of September.

Happy days😁

Costs:
Castor blocks £45.00
Top hat brass bushings £10.00 per set of four
Rear hubs £45.00
Anti-squat blocks for the 94,95.97 car £35.00

Something has been bugging me since I initially researched the possibilities of creating hop-ups for the Works 91.Given ...
21/07/2026

Something has been bugging me since I initially researched the possibilities of creating hop-ups for the Works 91.

Given that much of the standard kit is replaced, why are Yokomo enthusiasts encouraged to purchase a Works 91 donor car?

The standard chassis is not brilliant; the bulkheads are fragile, the castor and anti-squat angles are woefully inadequate for racing, and the suspension arms are shocking. The list goes on.

In reality, the only components you are likely to use from the standard kit are listed below.

YZ503GH – Differential case (2) £13.98, YZ-501GSW1 Steel outdrives cup (2) 19.98,B2-501GGA – Gasket (2) £7.99, 5S-500GM3A Maintenance kit for gear diff (2) £13.98,
(Upgrade) YZ2/YZ4 Steel Gear Diff Bevel gear Set (2) £27.98,
YZ-010RW1 Rear UJ Driveshaft £31.99,
YZ-010RF1 Front UJ Driveshaft £31.99,
(Upgrade) YZ-008W1 – Heavy-Duty 5.5mm Rod End Ball Cap £8.99.
If you are desperate to save money, the Works 91 Suspension arms (2) £13.98

Total cost £170.77 ($228.50).

Current discounted cost of the YZ-W91 £375.00 – YZ-W91TS Team spec 412.49 Depending on which car was purchased, racing owners could have up to £241.00 worth of parts unused in the box. (Prices from MB Models)

Many new owners pointed out this folly when the 870C was released. I appreciate that this will not be typical; however, many Yokomo 870C race cars have cost enthusiastic owners well in excess of £1,000. Many posts were written encouraging people to purchase only the parts required and select the required hop-ups from third-party producers.

Just saying...

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