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Pinewood Derby Wheel/Axle Q&A
Pre-2009 BSA Wheels



Q: What is the differences in the various pinewood derby wheels you offer?

A: Here is a comparison of the wheels we offer:

TypeQuantityWeight1Axles Included?MatchedPrep Required
Official BSA42.7Official BSA Stock2NoFull Prep
Premium
Official BSA
42.7Official BSA Stock2Yes, molds 2, 7, 8, 12, 15Full Prep
Speed
Official BSA
42.6Optional: BSA Speed (4094)2Yes, all moldsOptional: Polish inside edge and bore
Pro-Stock Speed
Official BSA
42.5Optional: BSA Speed (4094)2Yes, all moldsNone
Ultralight Speed
Official BSA
41.8Optional: BSA Speed (4094)2Yes, all moldsNone
Pro Ultra Lite Speed
Official BSA
41.0Optional: BSA Speed (4094)2NoNone
Awana42.2Official Awana StockNoFull Prep
Awana Speed41.0Optional: Official Awana Speed (4025)NoOptional: Cone hub, polish bore.
MV Wheels42.4Kits - Speed Axles (4095)
Bulk-Clean nail axle
NoFull Prep
PineCar43.5PineCar Rod & Nail Axles4NoFull Prep
PineCar Speed41.5No4NoNone
RA Racer Speed41.5RA Racer StockN/AOptional: Cone hub, polish bore.
Outlaw41.1Nickel Speed Axles (4096)N/ANone
Needle Outlaw41.1Needle AxlesN/ANone
X-Lite Outlaw40.8Nickel Speed Axles (4096)N/ANone
Needle X-Lite Outlaw40.8Needle AxlesN/ANone
Super Stock41.8Nickel Speed Axles (4096)N/ANone
Needle Super Stock41.9Needle AxlesN/ANone
1Typical weight per wheel in grams.
2Can use: BSA Speed Axles, Grooved BSA Speed Axles, Official BSA Speed Axles, Speed Axles, Nickel Speed Axles, or Super Speed Axles.
3Supplied in MV Basic Car Kits.
4Can use BSA Speed Axles, Grooved BSA Speed Axles, Speed Axles, Nickel Speed Axles, or Super Speed Axles.



Q: What is the difference between the Speed, Pro-Stock Speed, Ultralight Speed, and Pro Ultra Lite Speed for BSA?

A: Here is a comparison of the four wheel types:

TypeWeight (grams)Steps PerformedPrep Required
4090
Speed
Official BSA
2.6Mold matched, trued tread surfaceNone Required - Optional: Polish bore with 5102-Bore Polish
4080
Pro-Stock Speed
Official BSA
2.5Mold matched, trued bore, trued tread surface, squared outer hub, trimmed inner edgeNone Required - Optional: Polish bore with 5102-Bore Polish
4070
Ultralight Speed
Official BSA
1.8Mold matched, trued bore, trued tread surface, squared outer hub, trimmed inner edge, weight reduced to 1.8 gramsNone Required - Optional: Polish bore with 5102-Bore Polish
4060
Pro Ultra Lite Speed
Official BSA
1.0Mold matched, trued bore, trued tread surface, squared outer hub, trimmed inner edge, weight reduced to 1.0 gramsNone Required - Optional: Polish bore with 5102-Bore Polish

The following photos show the difference in appearance of the wheels:

Figure 1
Comparison of Spoke Side of BSA Wheels


Figure 2
Comparison of Hub Side of BSA Wheels


Q: Where on your web site can I order these wheels?

A: Click on the links in the first column of the tables above.


Q: Where can I find information about the mold numbers for BSA wheels?

A: Right Here.


Mold Characteristics

The table below provides the characteristics of the various BSA wheels. The definitions of the columns are:

Important Note
Within each mold family, there are occasional bad wheels. This is mostly due to the manufacturer not allowing the molded wheels to cool sufficiently before mold removal. Always spin test each wheel, eliminating wheels with excess side-to-side wobble.

In the table below, the premium matched wheels are identified with a green background.

Mold #RoundLeft-RightBore Size
1 Good Good Typical
2 Excellent Excellent Typical
3 Good Okay Typical
4 Good Excellent Typical
5 Good Okay Typical
6 Good Excellent Typical
7 Excellent Excellent Typical
8 Excellent Excellent Typical
9 Okay Okay Typical
10 Okay Good Typical
11 Okay Okay Typical
12 Excellent Excellent Typical
13 Okay Excellent Typical
14 Okay Excellent Typical
15 Excellent Excellent Typical
16 Good Okay Typical
Notes on measurements:
  1. Measurements were made in July of 2010. Ten wheels from each mold were randomly selected from 2,400 wheels. The wheels were examined and the results averaged.


  2. In general, all of the wheels are good - much better than the previous wheel version. The difference between the Excellent, Good, and Okay ratings is a few thousandths of an inch.


  3. The bore size on all mold numbers measured within one thousandth of an inch.
Q: Can I pick a mold number?

A: Yes, to reserve and order a particular mold number for Speed Wheels, or Premium Matched Wheels please Click Here.


Q: What is the difference between the axles you offer?

A: Here is a comparison of the axles we offer:

Axles
TypeQuantityMaterialHeadDiameterBurrs?TipPrep Required
BSA Speed4Zinc-plated SteelBeveled0.087 ± 0.0005NoNail PointNone required, but polishing with metal polish is recommended
Grooved BSA Speed4Zinc-plated SteelBeveled0.087 ± 0.0005
Mulit-grooved
NoNail PointNone required, but polishing with metal polish is recommended
Official BSA Speed4Zinc-plated SteelBeveled0.086 ± 0.003NoNail PointNone required, but polishing with 1350 grit and finer is recommended
Speed
for BSA, PineCar, Outlaw, etc.
5Zinc-plated SteelBeveled0.0870 ± 0.0005NoBluntNone required, but polishing with metal polish is recommended
Nickel Speed
for BSA, PineCar, Outlaw, etc.
5Nickel-plated SteelBeveled0.0870 ± 0.0005NoBluntNone required, but polishing with metal polish is recommended
Super Speed
for BSA, PineCar, etc.
4Nickel-plated SteelBeveled0.0910 ± 0.0005
Dual Groove
NoMachined PointNone required, but polishing with metal polish is recommended
Official Awana Speed4Zinc-plated SteelBeveled0.092 ± 0.0005
Single Groove
NoBluntNone required, but polishing with metal polish is recommended
Awana - Stock5Zinc-plated SteelSquare0.092 ± 0.0005NoBluntNone required, but polishing with metal polish is recommended
RA Racer - Stock4Zinc-plated SteelSquare0.094 ± 0.001YesNail PointFull Prep
PineCar Nail - Stock5Zinc-plated SteelSquare0.088 ± 0.003YesNail PointFull Prep




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