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Steel Thunder Custom Cycles

152 York Drive

Marshfield, MO 65706

417-468-2326

SPORTSTER PERFORMANCE 

The Sportster Pages Index

Edelbrock Sportster Performance RPM Power Package.   SPORTSTER PERFORMER RPM POWER PACKAGE

The highest-quality components designed, developed and tested to significantly increase torque and horsepower across the powerband on 91-03, 5-speed 883 or 1200 Sportster.
Correctly matched components provide sound, reliable performance.
Package includes black-finish 1200cc cylinder heads, Performer RPM camshafts, pushrods, +.005” bore, 10.3:1 compression ratio Edelbrock/JE pistons, pins, rings,locks and all necessary gaskets for upgrade.

Edelbrock Sportster Performer RPM Power Package for 91/03 XL models. Increase torque and horsepower.

86+
87 FT/LBS.
COMPRESSION RATIO 10.3:1

 

FOR 91-03 XL MODELS - DS0903-0015 Performer RPM Power Package ... $1,723.86 including shipping*

Intake manifolds for the Sportster performer package.INTAKE MANIFOLDS:

DS1010-0104 Flange manifold for S&S E carb and Edelbrock carb $75.95 with free shipping if bought with Power Package. Call to purchase alone, shipping will be added. 


DS1010-0105 Spigot manifold for CV and Mikuni HSR 42/45 carb $75.95 with free shipping if bought with Power Package.  Call to purchase alone, shipping will be added. 


Note: 883 models will require cylinder boring to 1200cc. Note: 00-03 models will require the use of 91-99 style pinion gear. Note: Requires the use of an Edelbrock intake manifold, sold separately.

This item appears on page 334 of the Fatbook. We carry everything in the Drag Specialties Fatbook, as well as the products in all these catalogs.

Please note: These are special order items. While most items ship the same or next business day, these items will take a few extra days to ship. No express delivery is available. No returns on Special Order items.

Sportster and Buell 6-speed transmission gear set from Baker Drivetrain.

Ratio Chart
Gear
Stock 5spd
Baker XL 6 spd
1st
2.69
2.52
2nd
1.97
1.96
3rd
1.43
1.44
4th
1.18
1.18
5th
1.00
1.00
6th
N/A
0.86
RPM Chart
MPH
RPM in Fifth
RPM in Sixth
RMP Reduction
65
3162
2719
443
70
3405
2928
447
75
3648
3137
511
80
3891
3346
545
NOTE: Data based on a 56/35 primary reduction, 61/27 secondary reduction and a 25" dia. rear tire.

Call to order toll free: 1-866-889-7828, 9-5 CST, M-F

6-SPEED TRANSMISSION GEAR SET FOR XL (SPORTSTER) AND BUELL - Baker Drivetrain

Gear set reduces the rpm at highway speed, adding life to the motor.
Includes gears, trapdoor, shifter drum, shifter forks and derby cover.
Redesigned shift drum and detent plate supply improved geometrics for smoother shifting..
Gears are full-width for uncompromised torque capacity and strength.
For ease of installation use existing main drive gear set (you do not have to remove the main 5th gear from the case).
Made in the U.S.A. Shipping is FREE!

Part #: DS-78061275 - For S&S XL motor... $2,166.36                                           


Part #: DR-DS326101 - For 95-03 XL, Buell... $2,161.85                                        

Part #: DR-DS326102 - For 91-94 XL, Buell... $2,161.85                                          

Note: It is recommended that for 94 applications the newer style gears (95-02) be used (OEM #35034-94 mainshaft 5th gear and 35633-94 5th gear countershaft). If the earlier gears are used, it may cause a gear whine that will in no way cause a mechanical problem. Note: Installation of this kit requires the removal of some case material and H-D special tools.

Please note: These are special order items. While most items ship the same or next business day, these items will take a few extra days to ship. No express delivery is available. No returns on Special Order items.

 
NOTE: There are no 6-speed transmissions available for 04/L Sportsters. Due to the new design of the engine cases, most likely there will not be any 6-speeds for these models available in the future.

Reverse Pattern Drum Kits
Convert your existing 91-up 5-speed or BAKER XL6 to reverse pattern shifting. Our 1-up, 4-down or 1-up, 5-down shift drum kits give lightning fast upshifts, something racers have known for years. Kits include a drum, billet detent plate, and low effort spring.

P/N 291-6 is a no cost option with purchase of a 201, 202, or 203 XL6 kit; add and "R" to the P/N.
CALL TO ORDER TOLL FREE: 1-866-889-7828, 9-5 CST, M-F.

Reverse Pattern Drum Kits
26 Tooth Pulleys
Stock Sportster/Buell transmission pulleys are made of cast iron in 27 and 29 tooth configurations. Replace your stock 27 tooth pulley with our 26 for an instant 4% increase in torque to the rear wheel.
(The 28 tooth pulley has been discontinued.)

In addition to 4% more torque to the rear wheel, our pulleys are lighter and stronger than stock. Less weight translates to reduced "flywheel effect" and quicker revs. Weight comparison:

Stock 27 tooth cast iron pulley ... 2.875 lbs

Long life pulley, 26 tooth ... 2.375 lbs

#292-56F - Long Life Pulley, Steel, 26 Tooth ...$142.84 including shipping*

28 tooth pulley from Baker Drivetrain

Install one of these pulleys with our XL6 to significantly increase the performance of your Sportster/Buell and reduce the cruising RPM.

CALL TO ORDER TOLL FREE: 1-866-889-7828, 9-5 CST, M-F.

 

Billet 5-Speed Door
If you are doing any serious performance upgrades to your motor, don't forget about your transmission. Our 6061-T6 trap door is three times stronger than the stock die-cast door in the critical area in-between and around the mainshaft and countershaft door bearings. Our transmission design expertise makes our 5-speed door the best trap door available, period.
Application: 91-up Sportster®/Buell®, P/N 299-5 ...$260.99 including shipping*

 

Billet 5-speed door

CALL TO ORDER TOLL FREE: 1-866-889-7828, 9-5 CST, M-F.

BAKER™ Sportster® 5-Speed Builder's Kits

  • BAKER 6061-T6 billet trap door.
  • Andrews aircraft alloy gears. Dog teeth have lead-in ramps for smoother shifting.
  • BAKER shift drums with conventional shift pattern (1-down, 4-up) or reverse pattern.
  • BAKER billet detent plate and low effort spring.


P/N - Description
101 - Stock ratios; see XL6 section of this page
111 - 2.61 1st, stock 2nd-5th, 47 MPH in 1st
121 - 2.37 1st, 1.88 2nd, stock 3rd-5th; 52 MPH in 1st gear, 66 MPH in 2nd
131 - 2.03 1st, 1.67 2nd, 1.36 3rd, 1.16 4th, stock 5th, 61 MPH in 1st, 74 MPH in 2nd, 91 MPH in 3rd, 107 MPH in 4th

Price each: $1,540.50 including shipping*
Speed calculations based on a 3.61 primary/secondary reduction at 6000 RPM
*Add a "R" suffix for reverse pattern drum and detent plate; no cost option.

BAKER 5-speed builder's kit

CALL TO ORDER TOLL FREE: 1-866-889-7828, 9-5 CST, M-F.

More Sporster Specific Items and Links in The Sportster Pages.

Baker Smooth Shift Kit for Buell and XL Sportster improves shift smoothness.

Please note: This is a special order item. While most items ship the same or next business day, this item will take a few extra days to ship. No express delivery is available. No returns on Special Order items except for manufacturer defect.

SMOOTH SHIFT KIT - Baker

Greatly improves the shift smoothness and the ability to find neutral.
Includes shifter drum, billet detent plate and low-effort spring.
Detent plate is held in place with machine screws, not a retaining clip.
Made in the U.S.A.

Part #: DS1811-0007 - For 91-03 XL, 94-02 Buell models (except Blast) ... $262.95 including shipping*

*FREE SHIPPING APPLIES IN CONTINTENTAL 48 UNITED STATES ONLY. AK, HI and APO/FPO will have additional shipping fees. We ship only within the U.S.A. and to APO/FPO (military addresses; weight and size restrictions apply.). We do not accept foreign credit cards. We do not ship to Puerto Rico.

Prefer to call in your order to Steel Thunder? Call toll-free: 1-866-889-7828. 9-5 CST M-F.

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Please note that all prices are subject to change.